Relevant bibliographies by topics / Light-Dark Test

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Light-Dark Test'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Light-Dark Test"

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Bourin, Michel, and Martine Hascoët. "The mouse light/dark box test." European Journal of Pharmacology 463, no. 1-3 (2003): 55–65. http://dx.doi.org/10.1016/s0014-2999(03)01274-3.

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Comstock, Matthew, and Ann McCarthy. "Impact of Light Bleaching on Dark Storage Test." NIP & Digital Fabrication Conference 27, no. 1 (2011): 255–58. http://dx.doi.org/10.2352/issn.2169-4451.2011.27.1.art00065_1.

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Muni, Nending, Trinity Sherpa, and Dilukshi Shashikaran. "Behavioural study of Nymphs of Periplaneta americana in a Light-Dark Box Subjected to Different Environmental conditions." Dera Natung Government College Research Journal 5, no. 1 (2020): 49–54. http://dx.doi.org/10.56405/dngcrj.2020.05.01.06.

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Nymphs of Periplaneta americana were used as an insect model to test behavioral changes in light-dark box experimental setup in relation to circadian rhythm disruption. The present study is focused mainly on light and dark preferences based on the three parameters of responses by a nymph of P. Americana in different environmental conditions by using light-dark box. The nymphs under constant light (LL) and constant darkness (DD) exposure were found to exhibit higher behavioral response in light-dark box test (Mean±SEM) when compared to 12 hours light-12 hours darkness LD condition.
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Muni, Nending, Trinity Sherpa, and Dilukshi Shashikaran. "Behavioural study of Nymphs of Periplaneta americana in a Light-Dark Box Subjected to Different Environmental conditions." Dera Natung Government College Research Journal 5, no. 1 (2020): 49–54. https://doi.org/10.56405/dngcrj.2020.05.01.06.

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<em>Nymphs of Periplaneta americana were used as an insect model to test behavioral changes in light-dark box experimental setup in relation to circadian rhythm disruption. The present study is focused mainly on light and dark preferences based on the three parameters of responses by a nymph of P. Americana in different environmental conditions by using light-dark box. The nymphs under constant light (LL) and constant darkness (DD) exposure were found to exhibit higher behavioral response in light-dark box test (Mean&plusmn;SEM) when compared to 12 hours light-12 hours darkness LD condition.</
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KHLOPOV, MAXIM YU. "PHYSICS OF DARK MATTER IN THE LIGHT OF DARK ATOMS." Modern Physics Letters A 26, no. 38 (2011): 2823–39. http://dx.doi.org/10.1142/s0217732311037194.

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Direct searches for dark matter lead to serious problems for simple models with stable neutral Weakly Interacting Massive Particles (WIMPs) as candidates for dark matter. A possibility is discussed that new stable quarks and charged leptons exist and are hidden from detection, being bound in neutral dark atoms of composite dark matter. Stable -2 charged particles O -- are bound with primordial helium in O-helium (OHe) atoms, being specific nuclear interacting form of composite Warmer than Cold dark matter. Slowed down in the terrestrial matter, OHe is elusive for direct methods of underground
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Singh, Richa, Shilpa N. Koare, and Ajay K. Shukla. "Evaluation of sesamol for anxiolytic activity in 72 hours sleep deprivation model in C57BL/6 mice." International Journal of Basic & Clinical Pharmacology 12, no. 4 (2023): 545–50. http://dx.doi.org/10.18203/2319-2003.ijbcp20231889.

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Background: In our study, we explored anxiolytic activity of sesamol in C57BL/6 mice. Anxiety was induced in mice after 72 hours of sleep deprivation. Anxiety was assessed by three behavioural tests as Open field test, hole board test and light dark chamber test. Methods: In our study, sesamol was evaluated in C57BL/6 mice for anxiolytic activity. Anxiety was induced by flower pot technique, in which sleep deprivation was done in mice for 72 hours. After 72 hours of sleep deprivation, the animals were subjected to three behavioural tests, as open field test, Hole board test and Light dark cham
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Auerbach, E., A. Dörrenhaus, and C. R. Cavonius. "Changes in sensitivity of the dark-adapted eye during concurrent light adaptation of the other eye." Visual Neuroscience 8, no. 4 (1992): 359–63. http://dx.doi.org/10.1017/s0952523800005095.

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AbstractThresholds for detection of light by a dark-adapted test eye were measured while the other, non-test eye was either similarly dark adapted or while it was exposed to an intense red adapting field. An interocular effect that depends on the retinal location of the test was found: compared to the threshold during binocular dark adaptation, sensitivity decreased during contralateral light adaptation when the test was presented to the foveola and up to 4 deg above it; but sensitivity increased when the test was between 7 and 12 deg, showing a reversal at 5 deg.
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Maximino, Caio. "Decynium-22 affects behavior in the zebrafish light/dark test." Neuroanatomy and Behaviour 3 (August 2, 2021): e21. http://dx.doi.org/10.35430/nab.2021.e21.

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Decynium-22 (D-22) is an inhibitor of the uptake2 system of monoamine clearance, resulting in increased levels of dopamine and norepinephrine (and in some cases serotonin) in the nervous system and elsewhere. Uptake2 is mediated by low-affinity, high-capacity transporters that are inhibited by glucocorticoids, suggesting a mechanism of fast glucocorticoid-monoamine interaction in the brain and a possible target for antidepressants. D-22 dose-dependently increased anxiety-like behavior in adult zebrafish exposed to the light/dark test, monotonically increasing scototaxis (dark preference), but
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Maximino, Caio. "Decynium-22 affects behavior in the zebrafish light/dark test." Neuroanatomy and Behaviour 3 (August 2, 2021): e21. https://doi.org/10.35430/nab.2021.e21.

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Decynium-22 (D-22) is an inhibitor of the uptake2 system of monoamine clearance, resulting in increased levels of dopamine and norepinephrine (and in some cases serotonin) in the nervous system and elsewhere. Uptake2 is mediated by low-affinity, high-capacity transporters that are inhibited by glucocorticoids, suggesting a mechanism of fast glucocorticoid-monoamine interaction in the brain and a possible target for antidepressants. D-22 dose-dependently increased anxiety-like behavior in adult zebrafish exposed to the light/dark test, monotonically increasing scototaxis (dark preference), but
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Haigis, Ann-Cathrin, Richard Ottermanns, Andreas Schiwy, Henner Hollert, and Jessica Legradi. "Getting more out of the zebrafish light dark transition test." Chemosphere 295 (May 2022): 133863. http://dx.doi.org/10.1016/j.chemosphere.2022.133863.

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Dissertations / Theses on the topic "Light-Dark Test"

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Gonçalves, Ana Sofia Ribeiro. "Validação do modelo de ansiedade Light / Dark Exploration Test em ratos Wistar." Master's thesis, Instituto Superior de Psicologia Aplicada, 2007. http://hdl.handle.net/10400.12/558.

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Dissertação de Mestrado em Etologia<br>Os modelos elevated plus-maze e light/dark são amplamente utilizados no estudo de compostos ansiolíticos e dos mecanismos neurobiológicos de ansiedade. O elevated plus-maze (EPM) e o open-field (OF) são testes validados para avaliação da ansiedade em ratos e ratinhos. O teste ligh/dark (LD) também é utilizado nos modelos de ansiedade, no entanto, só foi validado para modelos em ratinhos. Para validar o teste LD como um modelo de ansiedade em ratos avaliaram-se os parâmetros: validade construtiva, validade exterior e validade preditiva. Estes parâmetros fo
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Almeida, Eduardo Farina de. "Efeito antidepressivo e ansiolítico do extrato metanólico de Hibiscus tiliaceus em modelo animal de depressão pós-parto." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/67656.

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Hibiscus tiliaceus L. (Malvaceae) é usado popularmente em desordens do pós-parto. O extrato metanólico de flores de H. tiliaceus apresentou atividade antidepressiva-like nos testes de nado forçado e de suspensão da cauda, ambos são amplamente usados como modelos animais preditivos da atividade antidepressiva. Além disso, o extrato demonstrou uma tendência de aumento do tempo gasto nos braços abertos no labirinto em cruz elevado. Considerando que o extrato de H. tiliaceus, que contém fitoesteróis como o estigmasterol, o stigmastadienol e o stigmastadienone, pode ser útil no tratamento ou preven
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Brito, Thiago Marques de. "Validação da preferência claro/escuro como modelo comportamental de ansiedade no Carassius auratus (peixe dourado)." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/59/59134/tde-29022012-092339/.

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A validação de um modelo experimental para se investigar a ansiedade deve estar baseada inicialmente em uma validação comportamental paramétrica, que pressupõe a investigação de respostas relacionadas ao comportamento de defesa da espécie frente às situações aversivas presentes no ambiente de exposição. Assim, o presente trabalho validou a preferência claro/escuro como um modelo comportamental para o estudo da ansiedade no peixe Carassius auratus (peixe dourado). Foram avaliados os seguintes parâmetros: repetição das exposições ao aparato de teste em 5 sessões diárias, privação de comida, aquá
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Cazuza, Rafael Alves. "Possível envolvimento do monóxido de carbono na modulação do comportamento emocional em ratos: o papel do locus coeruleus." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/59/59134/tde-19042017-123841/.

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O gás monóxido de carbono (CO) possui diversas funções no sistema nervoso central (SNC) funcionando como neuromodulador, como por exemplo da regulação da temperatura corporal, da nocicepção e mais recentemente, do comportamento emocional. Este neuromodulador gasoso é produzido pela ação da enzima heme oxigenase (HO), a qual é encontrada em diferentes áreas do SNC. Com destaque, esta enzima tem alta expressão no locus coeruleus (LC), o que sugere o envolvimento do CO na modulação de funções desempenhadas por esta estrutura. O LC localiza-se na ponte, sendo a maior origem da inervação noradrenér
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Books on the topic "Light-Dark Test"

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Jonason, Peter Karl, ed. Shining Light on the Dark Side of Personality. Hogrefe Publishing, 2022. http://dx.doi.org/10.1027/00615-000.

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Learn which dark side of personality assessment to use and when Introduces different assessment tools Highlights the nuances between tests Presents the relevant psychometric properties Explores findings about human nature More about the book We encounter people who possess undesirable dark sides of personality at low levels in our day to day lives, whether it is the boss who acts like a jerk, a cheating partner, or a friend who rubs everyone up the wrong way. This volume explores the latest research on the assessment of the dark personality traits, including the dark triad of narcissism, Machi
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UGWU, Denis. Dark and Light Shades of Alcohol: UNDERSTANDING WHY YOU DRINK, HOW to MODERATE and QUIT Plus Alcohol Self Test Kit. Independently Published, 2022.

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Deruelle, Nathalie, and Jean-Philippe Uzan. The Lambda-CDM model of the hot Big Bang. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198786399.003.0059.

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This chapter introduces the Lambda-CDM (cold dark matter) model. In 1948, under the impetus of George Gamow, Robert Hermann, Ralph Alpher, and Hans Bethe in particular, relativistic cosmology entered the second phase of its history. In this phase, physical processes, in particular, nuclear and atomic processes, are taken into account. This provides two observational tests of the model: primordial nucleosynthesis, which explains the origin of light nuclei, and the existence of the cosmic microwave background, and it establishes the fact that the universe has a thermal history. Study of the larg
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Self, Kathleen. Straightening Out the Gods’ Gender. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190911966.003.0011.

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Drawing on Bruce Lincoln’s argument that Snorri Sturluson’s Edda provides an explicit, indigenous pantheon, this chapter examines the place of gender in a part of the Edda, Gylfaginning. This text divides the Old Norse deities in a relatively rigid binary of male and female, a binary that provides one of structures that organizes Snorri’s explicit pantheon. This gender binary further intersects with other binaries such as those of light and dark, and of god and giant. Snorri’s systemization of gender certainly has an impact on modern scholars and neopagan, but not as much as Lincoln’s argument
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Burney, Fanny. Camilla. Edited by Edward A. Bloom and Lillian D. Bloom. Oxford University Press, 2009. http://dx.doi.org/10.1093/owc/9780199555741.001.0001.

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First published in 1796, Camilla deals with the matrimonial concerns of a group of young people-Camilla Tyrold and her sisters, the daughters of a country parson, and their cousin Indiana Lynmere-and, in particular, with the love affair between Camilla herself and her eligible suitor, Edgar Mandlebert. The path of true love, however, is strewn with intrigue, contretemps and misunderstanding. An enormously popular eighteenth-century novel, Camilla is touched at many points by the advancing spirit of romanticism. As in Evelina, Fanny Burney weaves into her novel strands of light and dark, comic
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Paulicelli, Eugenia. Fashion under Fascism. 2nd ed. Bloomsbury Publishing Plc, 2025. https://doi.org/10.5040/9781350353398.

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Looking at the dark history of Italian fashion by focusing on the impact of 1930s Fascism, this is the second edition of Eugenia Paulicelli's classic text. InFashion under Fascism, Paulicelli explores the subtle yet sinister changes to the seemingly innocuous practices of everyday dress and shows why they were such a concern for the state. Importantly, she also demonstrates how these developments impacted on the global dominance of Italian fashion today. Alongside interviews with major designers, such as Fernanda Gattinoni and Micol Fontana, this newly expanded revised edition includes updated
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Rodrigues, Ailton Volpato. Da crise de fé ao silêncio reverente: (des-re-)construções da imagem de Deus em Jó. Brazil Publishing, 2021. http://dx.doi.org/10.31012/978-65-5861-197-4.

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The aim of this research is, following the arduous path taken by Job in his comprehension of the mysterious action of God, to contemplate the process of "de-rebuilding" of the images of God present in the poetic body of the biblical text. The term "de-rebuilding" has the objective of summarizing Job’s long journey in his difficult relationship towards God in the dark light of faith. The Book of Job is appreciated as a masterpiece of universal literature, both by its stylistic and poetic quality, as well as by its subject matter and its approach, in an admirable anthropological / psychological
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Jancura, Daniel, and Erik Sedlák. Bioenergetika. Univerzita Pavla Jozefa Šafárika, Vydavateľstvo ŠafárikPress, 2021. http://dx.doi.org/10.33542/be2021-0022-6.

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Prekladaný vysokoškolský učebný text „Bioenergetika“ by mal slúžiť ako úvod do problematiky štúdia v oblasti bioenergetiky. Táto vedná oblast je v súčasnosti vysoko aktuálna, pretože výsledky získané bioenergetickým výskumom v uplynulých rokoch zreteľne ukazujú, že bioenergetické procesy prebiehajúce v živých systémoch neslúžia “len” na transformáciu energie, ale ovplyvňujú aj priebeh procesov ako sú apoptóza, starnutie, vznik a rozvoj mnohých ochorení (predovšetkým neurodegeneratívnych). Tieto skutočnosti jednoznačne naznačujú potrebu existencie kvalitných učebných textov, ktoré by prijateľný
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Book chapters on the topic "Light-Dark Test"

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Jun, Gao. "Light-Dark Box Test." In The ECPH Encyclopedia of Psychology. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-6000-2_82-1.

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Jun, Gao. "Light-Dark Box Test." In The ECPH Encyclopedia of Psychology. Springer Nature Singapore, 2024. https://doi.org/10.1007/978-981-97-7874-4_82.

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Gammanpila, Ranthilaka R., and Eckart Haneke. "Skin testing, patch test." In Dermatoses in Dark Vs Light Skin. CRC Press, 2025. https://doi.org/10.1201/9781003479512-109.

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Hascoët, Martine, and Michel Bourin. "The Mouse Light–Dark Box Test." In Mood and Anxiety Related Phenotypes in Mice. Humana Press, 2009. http://dx.doi.org/10.1007/978-1-60761-303-9_11.

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Bloch, Solal, and Catherine Belzung. "The Light–Dark Box Test in the Mouse." In Neuromethods. Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2748-8_3.

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Steenbergen, Peter J., Michael K. Richardson, and Danielle L. Champagne. "The Light–Dark Preference Test for Larval Zebrafish." In Neuromethods. Humana Press, 2012. http://dx.doi.org/10.1007/978-1-61779-597-8_2.

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Araujo, Juliana, Caio Maximino, Thiago Marques de Brito, et al. "Behavioral and Pharmacological Aspects of Anxiety in the Light/Dark Preference Test." In Neuromethods. Humana Press, 2012. http://dx.doi.org/10.1007/978-1-61779-597-8_14.

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Newkirk, James. "A Light in a Dark Place: Test-Driven Development with 3rd Party Packages." In Extreme Programming and Agile Methods — XP/Agile Universe 2002. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-45672-4_14.

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Wilson, Bryan M. "The Nuclear Present." In Making the Geologic Now. punctum books, 2012. https://doi.org/10.21983/p3.0014.1.39.

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On September 29th, 2009, I was about to begin a pilgrimage to a remote location in the Southwestern desert. With my mother as navigator, my plan was to drive from my home state of Montana to the Trinity Nuclear Test Site, located within the White Sands Missile Range between Alamogordo and Soccorro, New Mexico. The United States military opens the Trinity Test Site to the general public two times a year, in the beginning of October and April. On July 16, 1945, the first plutonium-based atomic weapon was detonated on a remote location in the New Mexican desert. The subsequent explosion of “The G
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Schamess, Lisa. "L'O de V." In Dark Chaucer. punctum books, 2012. https://doi.org/10.21983/p3.0018.1.12.

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For centuries she didn’t speak at all, the girl Virginia.The silent girl who finally speaks tells the story. Submission, omission, commission, submersion, subversion, inversion, corruption, coercion. Defilement, denial, the child, the trial, fil, fille, vile, ville, filial bonds, bondage, twisted positions and impositions, text and subtext and context and cuntext. Penetration, vellum, hide, marks, pens, wounds, piercings, cuttings, severings, maidenheads, giving head, what’s inside our heads that is left unsaid, what cannot be said being said, the sinkhole in a prison bed, the outburst of cons
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Conference papers on the topic "Light-Dark Test"

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Reed, Carl, Mike O’Donoghue, and Vijay Datta. "Hubble Bubble Rising: a New Beginning - the Better Way." In SSPC 2017 Greencoat. SSPC, 2017. https://doi.org/10.5006/s2017-00018.

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Abstract This group of authors, thinking outside the proverbial box, and with a mind to Shakespeare’s Macbeth, presented a paper at SSPC 2010 entitled “Hubble, Bubble, Tests and Trouble: The Dark Side of Misreading the Relevance of Coating Testing”. A challenge to the status quo of coatings performance testing, the paper boldly questioned much of the conventional wisdom surrounding coating testing and how that testing is interpreted. A closer look was also undertaken into barriers to choosing best value coating systems established by a specification process which otherwise can end up being cou
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Souza, Marco Aurelio Bastos, Edson Eduardo Borges da Silva, João Pedro Mantovani Tarrega, Renato Tinós, and Ariadne de Andrade Costa. "Simulation of Rat Behavior in a Light-Dark Box via Neuroevolution." In Encontro Nacional de Inteligência Artificial e Computacional. Sociedade Brasileira de Computação - SBC, 2022. http://dx.doi.org/10.5753/eniac.2022.227630.

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The light-dark box is a widely used test for the investigation of animal behavior commonly used to identify and study anxious-like behavioral patterns in rodents. We propose a neuroevolution model for virtual rats in a simulated light-dark box. The virtual rat is controlled by an artificial neural network (ANN) optimized by a genetic algorithm (GA). The fitness function is given by a weighed sum of two terms (punishment and reward). By changing the weight of the punishment term, we are able to simulate the effects of anxiolytic/anxiogenic drugs on rats. We also propose using GAs to optimize th
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Humanski, Richard A., and Steven K. Shevell. "Spectrally opponent central mechanism of chromatic adaptation." In OSA Annual Meeting. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.thoo2.

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Under haploscopic viewing conditions, long-wavelength adaptation of one eye changes the perceived redness/greenness of a test presented to only the opposite, dark- adapted eye. We demonstrate that this central mechanism of chromatic adaptation depends on the wavelength of the adapting light presented to the test eye in a manner characteristic of a chromatically opponent process. Perceived redness/greenness was quantified by measuring red/green (r/g) equilibria over a 2 log unit range of test-field levels. The effect of the central mechanism was mea sured by the change in the spectral compositi
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Bowen, Richard W., and Hugh R. Wilson. "Pattern masking: retinal and cortical processes." In OSA Annual Meeting. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.thz3.

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We model pattern masking with a retinal luminance adaptation process followed by orientation-selective cortical filtering. We analyzed threshold elevations of a bandpass test stimulus (a 33 ms D6, sixth derivative of a Gaussian) masked by a 433 ms cosine grating, varying test polarity and spatial phase of the mask. The retinal process was defined by threshold elevation on uniform fields of the same luminance as the peak and the trough of the mask. The cortical process was defined by dividing cosine threshold elevation by uniform field elevation. The retinal process can be modeled with a Naka-R
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Wesner, Michael F., and Steven K. Shevell. "Changes in color appearance caused by dark contours in a chromatic adapting background." In OSA Annual Meeting. Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.fa6.

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We first measured red/green equilibria of a 1o test field superimposed on either a green (540 nm) or red (660 nm) 5°, 32-troland background. The background was then modified by (1) reducing its size to 3° or (2) introducing a dark, thin concentric ring with an outer diameter of 3°. The ring was 12′ wide so, effectively, it changed the 5° background to a 2.6° background surrounded by, but not contiguous with, a 35° (inner-outer diameter) ring. The test was an admixture of 549-and 660-nm light, and was varied from 6 to 300 trolands. The observer adjusted the 549-nm component of the test until th
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Bogatova, K. S., and O. V. Yakovleva. "STUDY OF MECHANICAL ALLODYNIA, PHOTOPHOBIA AND ANXIETY IN RATS WITH PRENATAL HYPERHOMOCYSTEINEMIA IN CHRONIC MIGRAINE CAUSED BY THE ADMINISTRATION OF NITROGLYCERIN." In X Международная конференция молодых ученых: биоинформатиков, биотехнологов, биофизиков, вирусологов и молекулярных биологов — 2023. Novosibirsk State University, 2023. http://dx.doi.org/10.25205/978-5-4437-1526-1-299.

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In this study, we analyzed the relationship of hyperhomocysteinemia (HHcy) with the development of migraine in male Wistar rats. Migraine modeling was carried out by repeated intraperitoneal administration of nitroglycerin. In rats with HHcy, a decrease in the threshold of mechanical sensitivity was revealed in the Von Frey test, and the development of anxiety and photophobia was also observed in the light-dark box test.
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Kholopov, Ivan Sergeevich, Igor Alekseevich Kudinov, and Mikhail Borisovich Nikiforov. "Planar Test Objects for Photogrammetric Calibration of Enhanced Vision Systems Cameras: Application Practice." In 32nd International Conference on Computer Graphics and Vision. Keldysh Institute of Applied Mathematics, 2022. http://dx.doi.org/10.20948/graphicon-2022-597-603.

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Two variants of constructs of planar test objects, which can be used to evaluate the internal and external parameters of video cameras operating as part of an enhanced vision system consisting of several video cameras in the visible and infrared wavelength ranges, are considered: with stationary electric heater and with portable electric heater like dock station. The design of both planar test objects consists of the light planar aluminum plate, squares from dark vinyl film, electric heating element and thermostat. The design of the device for performing automated camera calibration is present
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Su, X., D. Cao, W. Wei, Z. Hao, and Y. Ding. "URBAN ARTIFICIAL LIGHT SPECTRUM DISTRIBUTION MODEL OVER NIGHT SKY." In CIE 2023 Conference. International Commission on Illumination, CIE, 2023. http://dx.doi.org/10.25039/x50.2023.po094.

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Spectral distribution is an important factor to determine the degree of light pollution in urban night sky. However, characterizing the spectral distribution of large areas of artificial light over cities is difficult. In this paper, a spectral distribution calculation model is presented which is suitable for wide area optical environment. Based on the test data of lighting environment in Hohhot, China, satellite remote sensing luminous radiance data and sky brightness observation data, the characteristics of radiation intensity, spectral distribution and energy proportion of lighting in groun
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Bowen, Richard W., and Hugh R. Wilson. "Spatial phase effects in pattern masking." In OSA Annual Meeting. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.tupp1.

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Masking of bandpass-test stimuli by cosine gratings is known to be selective for spatial frequency and orientation, thus indicating a cortical component the phenomenon. Here we report that within 200 ms following the onset of a cosine mask, a phase-dependent masking effect emerges: Threshold elevation for a 33 ms D6 pattern (sixth derivative of a Gaussian) is greater on a light bar (0 phase) than on a dark bar (180 phase). A plausible hypothesis is that this phase effect results from a pointwise retinal luminance-adaptation process. To test this, we compared threshold elevations on cosine mask
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Chan, Hoover, Christopher W. Tyler, and Lei Liu. "Asymmetries in the perception of luminance increments and decrements at low contrasts." In OSA Annual Meeting. Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.thaa6.

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Studies of luminance increments and decrements have typically used transient pulses of localized stimuli. We employed two new paradigms to examine increment/decrement response asymmetries in grating stimuli presented with a smooth spatio–temporal envelope. For the first paradigm, we studied apparent width of the light and dark bars making up sinusoidal gratings as a function of contrast. In contrast ranges close to threshold, the light bars appeared up the three times wider than the dark bars, with a peak at contrast of ~3%. Similar asymmetries were seen over a range of spatial frequencies. Fo
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Reports on the topic "Light-Dark Test"

1

Epel, Bernard, and Roger Beachy. Mechanisms of intra- and intercellular targeting and movement of tobacco mosaic virus. United States Department of Agriculture, 2005. http://dx.doi.org/10.32747/2005.7695874.bard.

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To cause disease, plant viruses must replicate and spread locally and systemically within the host. Cell-to-cell virus spread is mediated by virus-encoded movement proteins (MPs), which modify the structure and function of plasmodesmata (Pd), trans-wall co-axial membranous tunnels that interconnect the cytoplasm of neighboring cells. Tobacco mosaic virus (TMV) employ a single MP for cell- cell spread and for which CP is not required. The PIs, Beachy (USA) and Epel (Israel) and co-workers, developed new tools and approaches for study of the mechanism of spread of TMV that lead to a partial iden
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