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Journal articles on the topic 'Morningness/eveningness'

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Published: 4 June 2021

Last updated: 27 April 2022

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1

Díaz-Morales, Juan Francisco, and María Gutiérrez Sorroche. "Morningness-Eveningness in Adolescents." Spanish Journal of Psychology 11, no. 1 (May 2008): 201–6. http://dx.doi.org/10.1017/s1138741600004248.

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Individual morningness-eveningness differences explain the rhythmic variations of behavioral and biological patterns. Several studies have corroborated that morningness preference increases over adulthood and aging. Adolescents shift their time of day preferences from morningness to eveningness during puberty. The aims of this study were translate to Spanish the Morningness-Eveningness Scale for Children (MESC) and to analyze age and sex differences. A group of 600 adolescents (aged between 12 and 16 years) participated in the study. Psychometric analysis showed that reliability and factor structure were suitable and similar to previous studies. The results indicated a clear decrease of morningness as of 12 years. Boys were more morningness-oriented than girls in several items of the questionnaire. In view of the results, several educational implications are raised.

2

Randler, C. "Morningness–eveningness—An overview." Personality and Individual Differences 60 (April 2014): S18. http://dx.doi.org/10.1016/j.paid.2013.07.384.

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3

Jankowski, Konrad S. "Morningness-eveningness and seasonality." Biological Rhythm Research 48, no. 3 (November 28, 2016): 331–42. http://dx.doi.org/10.1080/09291016.2016.1263001.

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4

Srinivasan, Vignesh, Surya Vishnuram, Prathap Suganthirababu, A. Kumaresan, P. Divyalaxmi, M. Saranya Devi, and Jagatheesan Alagesan. "Impact of COVID-19 online classes on morningness-eveningness personality among adult college students: A survey study." Work 70, no. 3 (November 26, 2021): 695–700. http://dx.doi.org/10.3233/wor-210528.

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BACKGROUND: COVID-19 emerged as a serious pandemic in 2019 and billions of people were infected. Various precautionary methods were taken to contain the spread of virus such as social distancing, public lockdown, sanitation, and closure of schools and colleges. Many colleges started online classes to resume their syllabus and to complete the course curriculum. These evening online sessions resulted in late night sleep, long term mobile/computer exposure, and disturbed sleep pattern. OBJECTIVE: The present study aimed to determine the impact of COVID-19 online classes on morningness- eveningness personality and to compare it with different age groups, gender, and body mass index. METHODS: The cluster sampling method was used to collect the subjects from the total of 1153 adult college students, 897 subjects were selected based on the selection criteria and instructed to submit an online survey consists of the Morningness-eveningness Questionnaire and demographic and anthropometric data through mail, social media, or through a researcher by direct interview. RESULTS: The mean score for the 897 participants is 56.7, indicating intermediate morningness-eveningness personality type. On comparing the different groups, the youngest group (18–20 years) scored 4.23%(mean = 46.7), female subjects scored 6.13%(mean = 58.1), the underweight 2.67%(mean = 59.2) and overweight groups scored 2.89%(mean = 59.7) indicating definite eveningness. Among the 897 collected samples of the population 8.13%of the subjects experienced definite eveningness, 14.93%has moderate eveningness, 17.38%are under intermediate category, 22.4%have moderate morningness, and 37.11%have definite morningness. CONCLUSIONS: Subjects with eveningness personality have high risk of developing mental illness, thus it’s important to determine the eveningness personality among student population to avoid serious complications in later age.

5

Cavallera, Guido M., Giuseppe Boari, Dina Labbrozzi, and Emilia Del Bello. "Morningness-Eveningness Personality and Creative Thinking Among Young People Who Play Recreational Sport." Social Behavior and Personality: an international journal 39, no. 4 (May 30, 2011): 503–18. http://dx.doi.org/10.2224/sbp.2011.39.4.503.

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Morningness-eveningness personality and creative thinking were investigated in a sample of young people who play recreational sports. Results showed that male participants were more eveningness-oriented than females; evening types had lower scores in creative thinking, although these were not statistically significant; the elaboration factor of the Torrance Test of Creative Thinking (Torrance, 1989) was positively correlated with taking part in sport activities in the whole sample; and the elaboration and fluidity factors were negatively correlated with intermediate and morningness dispositions. The relationship between the number of hours per week of sport activity, morningness-eveningness personality, and creative thinking was also explored.

6

Nguyen-Rodriguez, S. T., and O. M. Buxton. "0320 Psychological Correlates of Morningness/Eveningness in Latinx Pre-Adolescents." Sleep 43, Supplement_1 (April 2020): A121—A122. http://dx.doi.org/10.1093/sleep/zsaa056.317.

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Abstract Introduction Chronotype refers to a preference for morning hours (morningness) vs. evening hours (eveningness) when individuals tend to feel their best (e.g., higher energy levels). People may be classified at either end of this spectrum or along a continuum between these preferences. Among adolescents, eveningness is positively related to depression and anxiety, whereas morningness is negatively related to depression. However, less is known about the relationship of chronotype and psychological health in pre-teens and Latinx youth. The present study explored associations of morningness/eveningness with anxiety symptoms, depressive symptoms, and perceived stress among Latinx pre-adolescents in Southern California. Methods A purposive sample of 100 Latinx children, ages 10-12 years old, completed self-report surveys in their homes or a preferred location chosen by the parent. Measures included the Morningness/Eveningness Scale for Children (higher scores indicate morning preference), Revised Child Anxiety and Depression Scale and the Perceived Stress Scale (higher scores indicate higher anxiety, depression and stress, respectively). Associations were tested with Pearson correlations. Results The sample was 47% male with a mean±SD age of 10.9±0.8 years. Average score for morningness/eveningness was M=30.2±4.4 (range: 18-41), for anxiety symptoms was M=0.7±0.7 (range: 0-2.8), for depression symptoms was M=0.5±0.4 (range: 0-1.9) and for perceived stress was M=15.2±5.8 (range: 2-30). Greater morningness/eveningness scores, indicating more morningness, were associated with lower scores for anxiety symptoms (r=-.41, p<.001), depressive symptoms (r=-.36, p<.001) and perceived stress (r=-.33, p=.001). Conclusion As has been found for adolescents, higher morningness in Latinx pre-teens was related to less frequent anxiety and depression symptoms, as well as lower perceived stress. Youth experience a circadian phase delay during adolescence, shifting their preference toward eveningness, which may exacerbate stressors and negative mental health. Therefore, interventions to promote psychological well-being in pre-adolescents may help prevent worse psychological outcomes in Latinx children as they transition to adolescence. Support This work was supported by the National Institute of General Medical Sciences of the National Institutes of Health under Award Numbers UL1GM118979, TL4GM118980, and RL5GM118978.

7

Randler, C., and A. Adan. "Morningness–eveningness and circadian typology." Personality and Individual Differences 60 (April 2014): S18. http://dx.doi.org/10.1016/j.paid.2013.07.383.

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8

Randler, Christoph, and Stefanie Kretz. "Assortative mating in morningness–eveningness." International Journal of Psychology 46, no. 2 (April 2011): 91–96. http://dx.doi.org/10.1080/00207594.2010.518237.

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9

Monk, Timothy H., Daniel J. Buysse, Jaime M. Potts, Jean M. DeGrazia, and David J. Kupfer. "Morningness-Eveningness and Lifestyle Regularity." Chronobiology International 21, no. 3 (January 2004): 435–43. http://dx.doi.org/10.1081/cbi-120038614.

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10

Wang, Lili, and Tanya L. Chartrand. "Morningness–Eveningness and Risk Taking." Journal of Psychology 149, no. 4 (April 14, 2014): 394–411. http://dx.doi.org/10.1080/00223980.2014.885874.

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11

Sei, Hiroyoshi, Katsutaka Oishi, Yusuke Morita, and Norio Ishida. "Mouse model for morningness/eveningness." Neuroreport 12, no. 7 (May 2001): 1461–64. http://dx.doi.org/10.1097/00001756-200105250-00033.

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12

Sadeghzadeh, Hakimeh, Mazyar Haghgoo, and Samira Rabiei. "Association of Individuals’ Chronotypes With Obesity and Body Composition in Tehrani Adults in 2020." Chronobiology in Medicine 4, no. 1 (March 31, 2022): 35–41. http://dx.doi.org/10.33069/cim.2021.0032.

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Objective: Individual’s preferences in time for sleeping, waking up, doing physical and mental activity is dependent on chronotypes. According to these preferences, individuals are categorized to morningness, intermediate, and eveningness chronotype. Recently, it has been suggested that chronotypes are involved in regulation of sleep, appetite, and some metabolic factors. The aim of this study was to investigate the association between chronotypes, obesity, body fat, and lean mass in Tehrani adults.Methods: It was a cross-sectional study on 353 adults aged 18–60 years who referred to Tehran community centers. After anthropometric measurements and collecting data on general information, choronotype, physical activity and 3-day food recalls, fat mass, and lean mass were measured using the method of bioelectrical impedance analysis. SPSS 21 was used to statistical analysis.Results: Of total 353 participants, 11%, 47.6%, and 41.4% had eveningness, intermediate, and morningness chronotypes, respectively. The mean age of individuals with morningness and intermediate was higher than those with eveningness. The prevalence of eveningness in men was higher than in women (p=0.001). Fat mass and lean mass in individuals with eveningness type were higher and lower than those with morningness, respectively (p<0.05). Body mass index and waist circumference showed no significant difference among chronotypes.Conclusion: Eveningness type is associated with increase in fat mass and decrease in lean mass. The effects of chronotype on body fat and lean mass are independent of obesity.

13

Díaz-Morales, Juan Francisco, and Christoph Randler. "Morningness-Eveningness Among German and Spanish Adolescents 12–18 Years." European Psychologist 13, no. 3 (January 2008): 214–21. http://dx.doi.org/10.1027/1016-9040.13.3.214.

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Individual differences in human biological rhythms and diurnal preference (morningness-eveningness) are often based on self-report scales. Here, we compare Spanish (N = 771) and German (N = 1,182) adolescents (12–18 years) using the Composite Scale of Morningness (CSM). A 3-factorial solution of the CSM was supported in both countries, morningness, activity planning, and alertness factors, and the last two factors were invariant across countries. Morningness decreased with age, and higher morningness was found in German pupils. Gender differences were not significant concerning the alertness factor but existed in the activity-planning factor with girls scoring higher, and in the morningness factor with boys scoring higher. Interactions suggest that the linear trend toward eveningness is less pronounced in Spanish adolescents, whereas German boys showed the steepest linear decline in their over time compared to German girls and to Spanish boys who showed a U-shaped tendency.

14

Ratrin, Anisa Faradiba, Wilson Wilson, and Muhammad In’am Ilmiawan. "Hubungan antara chronotype dengan tingkat gejala depresi pada mahasiswa kedokteran tingkat pertama di Fakultas Kedokteran Universitas Tanjungpura." Jurnal Cerebellum 6, no. 3 (March 2, 2021): 66. http://dx.doi.org/10.26418/jc.v6i3.45311.

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Latar belakang: Chronotype merupakan preferensi biologis seseorang dalam memilih jam tidur dan waktu aktif (bangun) yang terbagi menjadi dua tipe yaitu morningness dan eveningness. Mahasiswa dengan tuntutan akademik serta non-akademik yang tinggi cenderung untuk memiliki preferensi eveningness. Dalam aspek psikis, chronotype eveningness dinilai turut berperan terhadap kejadian gangguan emosi, salah satunya yaitu depresi. Penelitian menilai hubungan antara chronotype dengan tingkat gejala depresi pada mahasiswa kedokteran tingkat pertama di Fakultas Kedokteran Universitas Tanjungpura. Metode: Ini adalah studi observasional analitik dengan pendekatan cross-sectional dan teknik total sampling. Sebanyak 97 mahasiswa tingkat pertama menjadi responden penelitian. Morningness-Eveningness Questionnaire dan Beck Depression Inventory-II digunakan sebagai alat ukur. Analisis data dilakukan menggunakan Uji Chi-square. Hasil: Responden yang memiliki chronotype morningness dan tidak memiliki gejala depresi sebanyak 35 mahasiswa (36%), sedangkan yang memiliki gejala depresi sebanyak 4 mahasiswa (4%). Responden yang memiliki chronotype eveningness dan tidak memiliki gejala depresi sebanyak 19 mahasiswa (20%) sedangkan yang memiliki gejala depresi sebanyak 39 mahasiswa (40%). Berdasarkan uji statistik didapatkan nilai p=0,000. Kesimpulan: Terdapat hubungan antara chronotype dengan tingkat gejala depresi pada mahasiswa kedokteran tingkat pertama di Fakultas Kedokteran Universitas Tanjungpura.

15

Reed, Justy. "Self-Reported Morningness-Eveningness Related To Positive Affect-Change Associated With A Single Session Of Hatha Yoga." International Journal of Yoga Therapy 24, no. 1 (January 1, 2014): 79–85. http://dx.doi.org/10.17761/ijyt.24.1.w530k7131304q056.

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Objectives: To examine positive affect (PA) responses to a single hatha yoga session compared to a lecture control class and to investigate a potential association between selfreported morningness-eveningness and yoga - related PA change. Method: Participants (Mean age = 28.50 years) in the yoga group (n = 45) and control group (n = 25) completed the revised Morningness-Eveningness Questionnaire (rMEQ) before yoga and lecture (pre) and the Visual Analogue Mood Scale (VAMS) as a measure of PA before and after yoga and lecture (post). Results: Pre-to-post PA change was greater in the yoga group compared to the control (p < 0.001). Analysis of the yoga group VAMS scores revealed a significant rMEQ type (morning, neither, evening) by time (pre to post) interaction (p = 0.03), with greater PA change in evening types compared to morning types (p = 0.01). Conclusions: The results show that a single hatha yoga session improves self-reported PA more than a lecture control and suggest a relationship between self-reported morningness-eveningness and PA responses to hatha yoga. The findings may help yoga practitioners, instructors, and researchers better understand the psychological benefits of yoga. Researchers should consider conducting long-term studies on the association between self-reported morningness- eveningness and affective responses to yoga practice.

16

Roeser, Karolin, Korbinian Riepl, Christoph Randler, and Andrea Kübler. "Effects of Chronotype and Synchrony/Asynchrony on Creativity." Journal of Individual Differences 36, no. 3 (July 1, 2015): 131–37. http://dx.doi.org/10.1027/1614-0001/a000163.

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Individual differences in morningness/eveningness are associated with measures of personality and performance. Yet, little is known about the relationship between morningness/eveningness and creativity. We tested N = 163 participants in the morning or in the evening, using the Composite Scale of Morningness and subtests of the Berlin Model of Intelligence Structure (BIS) Test to measure creativity. Creativity composite scores were derived for fluidity, that is the number of responses, and flexibility, that is the diversity of responses. Morningness was significantly associated with higher fluidity scores. Flexibility scores were positively, but not significantly related to morningness. We observed no significant effects of testing time or synchrony/asynchrony. In a linear regression model, older age, female sex, and higher morningness preference significantly predicted fluidity, indicating that morning types produce more creative solutions than evening-orientated individuals, independent of time of testing. Future studies should aim at replicating this result in larger samples and across other measures of creativity.

17

Matthews, Gerald. "Morningness–eveningness as a dimension of personality: Trait, state, and psychophysiological correlates." European Journal of Personality 2, no. 4 (December 1988): 277–93. http://dx.doi.org/10.1002/per.2410020405.

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Personality, mood, and psychophysiological correlates of Home and östberg's (1976) Morningness‐Eveningness Questionnaire (MEQ) are reported. State data were collected at both morning and evening times of day. MEQ score was related to personality traits associated with psychopathology—trait anxiety in males and psychoticism in females. The best explanation of these correlations is that personality and subject sex affect attention to zeitgebers or time of day cues. MEQ score was related to extroversion only in female subjects. A between‐subjects study showed that morningness was positively associated with high energetic arousal in the morning, as predicted, but the MEQ did not predict physiological arousal measures reliably. A subsequent within‐subjects study demonstrated sex differences in interactive effects of time of day and morningness‐eveningness in mood states related to psychological disorder. The MEQ predicted two somewhat independent circadian rhythms—one related to arousal, and one to depression. It is concluded that personality may be linked to morningness‐eveningness through associations between personality traits and cognitive and social factors affecting the entrainment of circadian rhythms to the sleep‐wake cycle.

18

Randler, Christoph. "Evening Types among German University Students Score Higher on Sense of Humor after Controlling for Big Five Personality Factors." Psychological Reports 103, no. 2 (October 2008): 361–70. http://dx.doi.org/10.2466/pr0.103.2.361-370.

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Humor research has focused on relationships between humor and various personality traits. As personality and morningness–eveningness, as well as personality and humor, are related based on genetics and neurobehavioral function, one might also expect a relationship between humor and chronotype. 197 students responded to the Composite Scale of Morningness as a measure of chronotype, the Sense of Humor Questionnaire and a 10-item version of the Big Five Inventory. Individuals scoring as evening types reported a greater sense of humor than morning individuals, with higher morningness scores. In a stepwise linear regression. Extraversión, Agreeableness, Openness, and Chronotype each accounted for a significant amount of variance in sense of Humor scores. That is, the relationship between scores on Sense of Humor and evening orientation was significant after controlling for personality dimensions. Eveningness was related to sense of Humor scores in women but not in men. Social but not cognitive humor was predicted by eveningness.

19

Hidalgo, Maria Paz Loayza, Camila Morelatto de Souza, Camila Bressan Zanette, and Paula Vianna Nunes. "Association of Daytime Sleepiness and the Morningness/Eveningness Dimension in Young Adult Subjects in Brazil." Psychological Reports 93, no. 2 (October 2003): 427–34. http://dx.doi.org/10.2466/pr0.2003.93.2.427.

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Sleepiness is a major public health problem associated with motor vehicle crashes, occupational accidents, decreased productivity, and interpersonal problems. It can be influenced by many factors, including the individual's circadian rhythm. The objective of this study is to assess the correlation between the morningness/eveningness dimension and daytime sleepiness in medical school students. This is a cross-sectional study; 310 subjects (123 women and 187 men, M age 20.5 ± 1.9 yr.) completed a questionnaire on use of drugs, diagnostic diseases, sleeping habits, the Morningness/Eveningness Questionnaire and the Epworth Sleepiness Scale. The only variable related to daytime sleepiness was the morningness/eveningness dimension ( r = –.18, p = .002). Questions with higher coefficients of discrimination between the morning and the evening chronotype were “Lying down to rest in the afternoon when circumstances permit” (.61), “Sitting and reading” (.53), and “As a passenger in a car for an hour without a break” (.53). The implications of the findings are discussed.

20

Stark, Adrian, and Anita Vulic-Prtoric. "Morningness-eveningness and Fatigue in Adolescence." Socijalna psihijatrija 46, no. 1 (March 29, 2018): 3–25. http://dx.doi.org/10.24869/spsih.2018.3.

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21

Natale, Vincenzo, Donatella Ballardini, Romana Schumann, Chiara Mencarelli, and Valentina Magelli. "Morningness–eveningness preference and eating disorders." Personality and Individual Differences 45, no. 6 (October 2008): 549–53. http://dx.doi.org/10.1016/j.paid.2008.06.014.

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22

Kanagarajan, Keresa, Karine Gou, Christina Antinora, Asli Buyukkurt, Olivia Crescenzi, Serge Beaulieu, Kai-Florian Storch, and Outi Mantere. "Morningness-Eveningness questionnaire in bipolar disorder." Psychiatry Research 262 (April 2018): 102–7. http://dx.doi.org/10.1016/j.psychres.2018.02.004.

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23

Vink, J. M., Jacqueline M. Vink, Alexia S. Groot, Gerard A. Kerkhof, and Dorret I. Boomsma. "GENETIC ANALYSIS OF MORNINGNESS AND EVENINGNESS." Chronobiology International 18, no. 5 (January 2001): 809–22. http://dx.doi.org/10.1081/cbi-100107516.

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Adan, Ana, and Vincenzo Natale. "GENDER DIFFERENCES IN MORNINGNESS–EVENINGNESS PREFERENCE." Chronobiology International 19, no. 4 (January 2002): 709–20. http://dx.doi.org/10.1081/cbi-120005390.

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25

Randler, Christoph, Konrad S. Jankowski, Arash Rahafar, and Juan Francisco Díaz-Morales. "Sociosexuality, Morningness–Eveningness, and Sleep Duration." SAGE Open 6, no. 1 (January 5, 2016): 215824401562195. http://dx.doi.org/10.1177/2158244015621958.

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26

Randler, Christoph. "Morningness–Eveningness and Satisfaction with Life." Social Indicators Research 86, no. 2 (June 5, 2007): 297–302. http://dx.doi.org/10.1007/s11205-007-9139-x.

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27

Tonetti, L., A. Adan, H. Caci, V. De Pascalis, M. Fabbri, and V. Natale. "Morningness-eveningness preference and sensation seeking." European Psychiatry 25, no. 2 (March 2010): 111–15. http://dx.doi.org/10.1016/j.eurpsy.2009.09.007.

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AbstractThe aim of this study was to explore the relationship between circadian preference and sensation seeking. To this aim 1041 university students (408 males and 633 females), ranging in age between 18 and 30 years, filled the reduced version of the Morningness-Eveningness Questionnaire (MEQr) and the Sensation Seeking Scale-Form V (SSS-V). Males scored higher than females in SSS-V total score and all subscales, except experience seeking (ES). As regards circadian preference, evening types scored higher than morning types in SSS-V total score and all subscales, except boredom susceptibility (BS) where they significantly differed only from intermediate types. On the whole our results highlight a significant relationship between circadian preference and sensation seeking.

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Killgore, William D. S. "Effects of Sleep Deprivation and Morningness-Eveningness Traits on Risk-Taking." Psychological Reports 100, no. 2 (April 2007): 613–26. http://dx.doi.org/10.2466/pr0.100.2.613-626.

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Individuals differ along a continuum of preference for diurnal activity level, known as Morningness-Eveningness. Individuals low in Morningness traits, i.e., preferring later awakening and bed times, have been shown to score higher on personality traits of impulsiveness and novelty-seeking. No studies have yet examined the association between Morningness-Eveningness and the related construct of risk-taking. Therefore, the present study examined (1) whether Morningness was correlated with self-reported and behavioral measures of risk-taking, and (2) whether one night of sleep deprivation would produce changes in risk-taking and sensation-seeking. 54 healthy adults were administered the Morningness-Eveningness Questionnaire at intake, and administered the Brief Sensation Seeking Scale, Evaluation of Risks Scale, and Balloon Analog Risk Task at rested baseline, again following 23 hr. of sleep deprivation, and finally after a 12-hr. period of recovery sleep. Lower Morningness scores were associated with higher self-reported total risk-taking propensity when rested ( p< .05) and sleep deprived ( p<.005), but correlations were not significant for sensation seeking or actual risk-taking behavior. Relative to baseline and postrecovery periods, sleep deprivation significantly reduced risk-taking propensity, including self-report indices of self-control, danger-seeking, energy level, and sensation-seeking, and behaviorally measured risk-taking. Chronotype did not interact with sleep condition for any of the dependent variables, although Evening Types scored higher on several indices of risk-propensity. Findings suggest that Morningness traits are inversely related to greater risk-taking propensity, while sleep deprivation significantly reduces self-reported and behaviorally demonstrated willingness to engage in high-risk and sensational activities under conditions of uncertainty, regardless of chronotype.

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Jankowski, Konrad S., and Marcin Zajenkowski. "The Role of Morningness and Endurance in Mood and Attention During Morning and Evening Hours." Journal of Individual Differences 37, no. 2 (April 2016): 73–80. http://dx.doi.org/10.1027/1614-0001/a000189.

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Abstract. This study aimed at testing the effects of morningness-eveningness and endurance on mood and selective attention during morning and evening hours. University students (N = 80) completed the Polish version of the Morningness-Eveningness Questionnaire, the Formal Characteristics of Behaviour-Temperament Inventory, and two testing sessions scheduled during the morning and evening hours. Each testing session consisted of completing the UWIST Mood Adjective Checklist composed of three scales: energetic arousal (EA), tense arousal (TA), and hedonic tone (HT), and a computerized visual search task. Without consideration of morningness and endurance, a time-of-day effect appeared in the visual attention but not in affect: participants were more accurate and faster in the evening than in the morning. Considering morningness and endurance, neither of them influenced the selective attention but they did influence mood. Morningness influenced diurnal variations in EA and HT in such a way that from morning to evening hours, morning chronotypes showed a decrease and evening types an increase in EA and HT. During morning hours, morningness was related to higher EA and HT and lower TA, but endurance was not. During evening hours, morningness was unrelated to mood, but endurance was linked to higher EA. It is concluded that morningness and endurance impact mood differently throughout the day, with the role of morningness decreasing and the role of endurance increasing as the day progresses.

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Schmidt, Sarah, and Christoph Randler. "Morningness-Eveningness and Eating Disorders in a Sample of Adolescent Girls." Journal of Individual Differences 31, no. 1 (January 2010): 38–45. http://dx.doi.org/10.1027/1614-0001/a000005.

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Eating disorders and morningness-eveningness preferences are presumed to be associated with each other. We tested this hypothesis in an adolescent population using a questionnaire for morningness (CSM) and three scales of the EDI-2: drive for thinness, bulimic behavior, and body dissatisfaction. After controlling for age and BMI, we found a positive association between eveningness and all three scales; evening-oriented girls reported higher values in eating disorders. There was a positive correlation between body dissatisfaction and drive for thinness on the one side and bedtimes during the week and on the weekend on the other, again supporting the view that eveningness and eating disorders are associated. The association between circadian preference and eating disorders thus emerges already in adolescence.

31

Steele, Mark T., Robert M. McNamara, Rebecca Smith-Coggins, and William A. Watson. "Morningness-Eveningness Preferences of Emergency Medicine Residents Are Skewed toward Eveningness." Academic Emergency Medicine 4, no. 7 (July 1997): 699–705. http://dx.doi.org/10.1111/j.1553-2712.1997.tb03763.x.

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32

Ponzi, Davide, Andrea Henry, Konrad Kubicki, Nora Nickels, M. Claire Wilson, and Dario Maestripieri. "Morningness–eveningness and intrasexual competition in men." Personality and Individual Differences 76 (April 2015): 228–31. http://dx.doi.org/10.1016/j.paid.2014.12.023.

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33

Schaal, Steffen, Michaela Peter, and Christoph Randler. "Morningness‐eveningness and physical activity in adolescents." International Journal of Sport and Exercise Psychology 8, no. 2 (January 2010): 147–59. http://dx.doi.org/10.1080/1612197x.2010.9671939.

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34

Taillard, Jacques, Pierre Philip, and Bernard Bioulac. "Morningness/eveningness and the need for sleep." Journal of Sleep Research 8, no. 4 (April 20, 2002): 291–95. http://dx.doi.org/10.1046/j.1365-2869.1999.00176.x.

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Caminada, Hans, and Frans De Bruijn. "Diurnal variation, morningness‐eveningness, and momentary affect." European Journal of Personality 6, no. 1 (March 1992): 43–69. http://dx.doi.org/10.1002/per.2410060105.

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Abstract:

The research questions of this study are the following: To what degree can results such as those of Thayer and colleagues (1978a, 1985, 1986, 1988) concerning diurnal variation and differences between diurnal types, obtained for energetic and tense arousal, be (1) replicated, (2) extended to elation and pleasantness, and (3) generalized to positive and negative affect? With regard to energetic arousal, all results were in line with those of Thayer and colleagues. However, regarding tense arousal, there was an unexpected main effect for time of day. For energetic arousal, elation, pleasantness, positive affect, and negative affect, there was (a) a significant main eflect for time of day, (b) a quadratic trend for diurnal variation, and (c) a significant Diurnal Type × Time of Day interaction, There were no significant sex differences in diurnal variation. Two final hypothetical statements are made about the diurnal variation and differences between diurnal types with regard to state scales: (a) the diurnal variation of a state scale cannot be described with a quadratic function if that scale is completely unrelated to energetic arousal; and (b) the characteristic differences between morning types and evening types, especially when measured in the morning and in the evening, will not manifest themselves on a state scale if that scale is entirely unrelated to energetic arousal. Finally, the possible usefulness of the results of this study for practical applications and the development of theories are discussed.

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Lester, David. "Morningness—Eveningness, Current Depression, and Past Suicidality." Psychological Reports 116, no. 2 (April 2015): 331–36. http://dx.doi.org/10.2466/16.02.pr0.116k18w5.

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Stolarski, Maciej, and Konrad S. Jankowski. "Morningness–eveningness and performance-based emotional intelligence." Biological Rhythm Research 46, no. 3 (March 19, 2015): 417–23. http://dx.doi.org/10.1080/09291016.2015.1020199.

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LANGE, Luisa, and Christoph RANDLER. "Morningness-eveningness and behavioural problems in adolescents." Sleep and Biological Rhythms 9, no. 1 (November 15, 2010): 12–18. http://dx.doi.org/10.1111/j.1479-8425.2010.00478.x.

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Akifa Begum and Sridevi G. "Influence of circadian rhythm on individual differences in morningness-eveningness scale among normal healthy subjects." International Journal of Research in Pharmaceutical Sciences 11, SPL3 (September 17, 2020): 686–93. http://dx.doi.org/10.26452/ijrps.v11ispl3.3003.

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The circadian rhythm is a biological rhythm that produces physical, psychological and behavioural changes in a living organism, and it follows a daily cycle. This cycle depends on the response of the organism to light and darkness in the environment. The aim of the study was to analyse and evaluate the influence of circadian rhythm on individual differences in morningness-eveningness attitude among the normal healthy subjects. Morningness eveningness questionnaire is a standard tool to assess sleep, wakefulness alertness, self-awareness and best time activity of the individual either in the morning time or evening time. This questionnaire was self-administered, and it consisted of 10 questions and was circulated via google forms. The results revealed that a majority of 85% of the participants are evening types of persons and the significance level was a p-value < 0.05 of the chi-square test. The present study assessed the influence of the circadian rhythm on the morningness-eveningness scale, and results revealed that most of the participants were alarm dependant, had difficulty in waking up. They were very active in the evening and went to bed very late. So, the study concluded that the majority of participants were evening type of person.

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Thun, Eirunn, Bjørn Bjorvatn, Theresa Osland, Vidar Martin Steen, Børge Sivertsen, Torill Johansen, Tom Halvor Lilleholt, Idalill Udnes, Inger Hilde Nordhus, and Ståle Pallesen. "An Actigraphic Validation Study of Seven Morningness-Eveningness Inventories." European Psychologist 17, no. 3 (January 1, 2012): 222–30. http://dx.doi.org/10.1027/1016-9040/a000097.

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Abstract:

Morningness-eveningness refers to the preference people have regarding the time they like to rise, conduct activities, and go to bed. People denoted as “morning types” (“larks”) like to rise early in the morning and go to bed early, while “evening types” (“owls”) prefer to sleep until later in the day and stay up until later at night. Various self-report instruments that measure morningness-eveningness have been developed. The aim of this study was to validate seven different self-report measures on morningness-eveningness using actigraphic data. One hundred and sixty-six students (mean age 21.4 years, range 19–30) were recruited from the University of Bergen and Bergen University College. The participants completed the self-report measures and wore an actigraph for seven days. The results showed that all self-report measures were in concordance with actigraphy-measured bed times, rise times, and the nadir for physical activity. In addition, some of the instruments were sensitive to differences between morning and evening types in their total sleep time on weekend nights or their stability in the activity curve across days as measured by actigraphy. Both the strengths and weaknesses of the present study are discussed, and proposals for future research are presented.

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Chrobak, A., A. Tereszko, A. Arciszewska, M. Siwek, and D. Dudek. "Associations Between Chronotype and Schizotypy in Healthy Adults." European Psychiatry 41, S1 (April 2017): S261—S262. http://dx.doi.org/10.1016/j.eurpsy.2017.02.071.

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Chronotype is defined as individual circadian preference, most often represented on the continuum between two extremes: morningness and eveningness. Growing number of studies show associations between circadian preference and various psychopathological symptoms. Eveningness has been shown to be related with depressiveness in non-clinical population, while mornigness has been presented as protective factor. Schizotypy is a schizophrenic-spectrum personality trait linked with a tendency to eccentricity, magical thinking and unusual experiences. Features of schizotypy has been identified in patients with mood disorders i.e bipolar disorder. While there is growing number of studies evaluating associations between chronotype and affective symptons, to our best knowledge there are no studies adressing the issue of association between schizotypy and circadian preferences. A total of 887 healthy individuals took part in the web-based study. Chronotype has been assessed with the use of Composite Scale of Morningness. Schizotypy has been measured with the use of the enlarged version of The Oxford-Liverpool Inventory of Feelings and Experiences (O-LIFE). Analysis revealed significant positive correlations between cognitive disorganization, introvertive/anhedonia, implusiveness/nonconformity and eveningness. To our best knowledge, results indicate for the first time relationship between eveningness and schizotypy, measured by O-LIFE.Disclosure of interestThe authors have not supplied their declaration of competing interest.

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Almirall, Helena. "Including Neither-Type in the Morningness-Eveningness Dimension Decreases the Robustness of the Model." Perceptual and Motor Skills 77, no. 1 (August 1993): 243–54. http://dx.doi.org/10.2466/pms.1993.77.1.243.

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The present paper is a study of axillary temperature and performance during the waking part of the day and the relationship of these two variables to Morningness-Eveningness preferences. A reduced scale of the Home and Östberg questionnaire was adapted and standardized for the Spanish population, and 3 groups of subjects were formed (Morning-types: 3 men, 2 women; Neither-type: 3 men, 6 women; Evening-types: 1 man, 4 women). Three different tasks were tested, auditory reaction time (to measure alertness and speed), index finger tapping (motor skill), and verbal memory (information processing). The subjects were tested hourly in 13 sessions spread out over the day. Morningness-Eveningness preference groups did not differ in temperature and performance. Neither-type subjects did not present values intermediate between those of the Morning- and Evening-types.

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Prieto, Pedro Delgado, Juan Francisco Díaz-Morales, Cristina Escribano Barreno, Mª José Collado Mateo, and Christoph Randler. "Morningness-Eveningness and Health-Related Quality of Life among Adolescents." Spanish journal of psychology 15, no. 2 (July 2012): 613–23. http://dx.doi.org/10.5209/rev_sjop.2012.v15.n2.38872.

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Accumulating evidence suggests that evening-type adolescents are exposed to a number of determinants that might have a negative impact on their health condition. Given that few studies have investigated the association between chronotype and quality of life measures in large samples of adolescents, the aim of this study was to assess the relationship between morningness-eveningness and health-related quality of life among 1600 adolescents (aged 12-16 years). Adolescents completed the Veçú et Santé Perçue de L'adolescent (VSP-A) and the Morningness-Eveningness Scale for Children (MESC). Girls and older adolescents reported worse health indicators and were more evening oriented. Evening-type adolescents obtained lower scores on vitality, physical and psychological well-being, body image, relations with parents, relations with teachers, school work and global health scale.

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Levy, David A. "Optimism and Pessimism: Relationships to Circadian Rhythms." Psychological Reports 57, no. 3_suppl (December 1985): 1123–26. http://dx.doi.org/10.2466/pr0.1985.57.3f.1123.

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A 16-item scale to measure optimism-pessimism was developed and administered to 160 subjects to investigate differences in personality traits as related to circadian rhythm functioning. Evening types were significantly more pessimistic than morning types. Other results showed that men and women did not differ significantly with respect to either optimism-pessimism or morningness-eveningness. Finally, while increased age was mildly correlated with morningness, it appeared to have little relationship to optimism-pessimism.

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Randler, Christoph. "DIFFERENCES BETWEEN SMOKERS AND NONSMOKERS IN MORNINGNESS-EVENINGNESS." Social Behavior and Personality: an international journal 36, no. 5 (January 1, 2008): 673–80. http://dx.doi.org/10.2224/sbp.2008.36.5.673.

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Some factors influencing smoking habits have been identified, but chronotype or the misalignment of social and biological time has rarely been examined. In this study, chronotype was examined and it was found that on average, smokers consumed more coffee, more alcohol, and had less developed breakfast habits compared with nonsmokers. Smokers tended towards eveningness and had a greater difference in wake-up times between week days and free days. Using a canonical discriminant function it was found that breakfast habits, coffee and alcohol consumption, total Composite Scale of Morningness (CSM) score, and weekend sleep-in separated smokers from nonsmokers, while age and gender were excluded. As late chronotypes do not fit well into conventional social and working schedules, this relationship can be interpreted as a behavioral symptom of the inability to cope with social demands.

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Sexton-Radek, Kathy, and Donna Harris. "Morningness versus Eveningness Arousal Patterns in Young Adults." Perceptual and Motor Skills 74, no. 1 (February 1992): 115–19. http://dx.doi.org/10.2466/pms.1992.74.1.115.

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The preference for morning versus evening time for activities requiring alertness was investigated. Responses from 9 individuals categorized as “owls” and 7 classed as “larks” based on their scores on the Morningness Versus Eveningness Questionnaire were compared to a group of 11 classified as “neither” on measures of sleep attitude and personality factors of arousal. No statistically significant differences were found; however, an item analysis yielded a statistically significant difference among the groups' responses on questions involving personal choices of sleep/wake schedules. This distinguishing aspect between the groups denotes the utility of subjective measures of preference. Our findings complement those from other subjective and experimental studies of “owls” and “larks” and add the important dimension of inquiring about personal preferences of subjects.

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Negriff, Sonya, and Lorah D. Dorn. "Morningness/eveningness and menstrual symptoms in adolescent females." Journal of Psychosomatic Research 67, no. 2 (August 2009): 169–72. http://dx.doi.org/10.1016/j.jpsychores.2009.01.011.

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Chung, Min-Huey, Fwu-Mei Chang, Cheryl CH Yang, Terry BJ Kuo, and Nanly Hsu. "Sleep quality and morningness-eveningness of shift nurses." Journal of Clinical Nursing 18, no. 2 (January 2009): 279–84. http://dx.doi.org/10.1111/j.1365-2702.2007.02160.x.

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Friedrich Cofer, Lynette, James W. Grice, Lisa Sethre-Hofstad, Christopher J. Radi, Laura K. Zimmermann, Deborah Palmer-Seal, and Georgia Santa-Maria. "Developmental Perspectives on Morningness-Eveningness and Social Interactions." Human Development 42, no. 4 (1999): 169–98. http://dx.doi.org/10.1159/000022623.

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Natale, Vincenzo, and PierCarla Cicogna. "Morningness-eveningness dimension: is it really a continuum?" Personality and Individual Differences 32, no. 5 (April 2002): 809–16. http://dx.doi.org/10.1016/s0191-8869(01)00085-x.

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