Results 41 to 50 of about 8,717 (203)

Relating color discrimination to photopigment genes in deutan observers [PDF]

, 1998
Deutan observers are a heterogeneous group, varying nearly continuously from deuteranomalous trichromats with fine chromatic discrimination in the red/green range to deuteranopes who have none.
Shevell, S.K, He, J.C, Kainz, P, Neitz, J, Neitz, M   +4 more
core   +1 more source

Midbrain PAG Astrocytes Modulate Mouse Defensive and Panic‐Like Behaviors

Advanced Science, EarlyView.
Astrocytes in the midbrain periaqueductal gray (PAG) dynamically encode threat intensity and shape defensive action selection in mice. Real‐time Ca2+ imaging reveals robust astrocytic activation during predator odor and CO2 exposure. Aberrant astrocytic Ca2+ overactivation disrupts goal‐directed escape, biases behavior toward freezing, and induces ...
Ellane Barcelon, Kyungchul Noh, Minkyu Hwang, Yoon‐Jung Kim, Unjin Lee, Yeon Joo Ryu, Je‐Kyung Ryu, Sang Beom Jun, Se‐Young Choi, Woo‐Hyun Cho, Sung Joong Lee   +10 more
wiley   +1 more source

A flexible arched artificial photoreceptor constructed by photodeformable liquid crystal polymers and its application in vision restoration

Smart Molecules, EarlyView.
A flexible arched artificial photoreceptor with high stability and biocompatibility was fabricated by integrating liquid crystal polymers with polyvinylidene fluoride‐trifluoroethylene. This device exhibits robust photoelectric responses under low‐intensity illumination and demonstrates efficacy in restoring visual responses in blind rats following ...
Yumeng Jiang, Bo Peng, Jinyu Ma, Feng Pan, Jia Wei, Lang Qin, Cheng Sun, Yanlei Yu   +7 more
wiley   +1 more source

Colour Vision Revisited

Delhi Journal of Ophthalmology, 2014
Congenital red-green colour deficiency is an X-linked inherited disorder more frequently encountered in males compared to females. Screening of coour deficiency is crucial in various occupations, at times to safeguard colour deficient individual as well ...
Twinkle Parmar, M. Vanathi, S Ghose, T Dada, P Venkatesh   +4 more
doaj   +1 more source

The Effect of Cone Opsin Mutations on Retinal Structure and the Integrity of the Photoreceptor Mosaic [PDF]

, 2012
Purpose. To evaluate retinal structure and photoreceptor mosaic integrity in subjects with OPN1LW and OPN1MW mutations. Methods. Eleven subjects were recruited, eight of whom have been previously described.
Banin, Eyal, Carroll, Joseph, Connor, Thomas B., Jr., Cooper, Robert F., Dubis, Adam M., Dubra, Alfredo, Fishman, Gerald, Gardner, Jessica C., Genead, Mohamed, Hardcastle, Alison J., Hunt, David M., Michaelides, Michel, Mizrahi-Meissonnier, Liliana, Moore, Anthony T., Neitz, Jay, Neitz, Maureen, Nordgren, Rick, Sharon, Dror, Stepien, Kimberly E., Williams, David R.   +19 more
core   +2 more sources

Extraocular Photoreception in Optic Lobes, Suckers, and Skin of Octopus vulgaris

Integrative Zoology, EarlyView.
Evidence of extra‐ocular photoreception in Octopus vulgaris (a) Diagram of the O. vulgaris different tissues considered: SPB, sucker proximal big; SPL, sucker proximal large; SM, sucker medium; SD, sucker distal; SK, skin; OL, optic lobes; RT, retina; (b‐d) Gene expression analysis of Ov‐GRK1 (red), Ov‐retinochrome (green), Ov‐rhodopsin (blue) mRNA ...
Valeria Maselli, Al‐Sayed Al‐Soudy, Mariangela Norcia, Stefania Galdiero, Sara Palladino, Emanuela Cirillo, Gianluca Polese, Anna Di Cosmo   +7 more
wiley   +1 more source

Unexpected diversity and photoperiod dependence of the zebrafish melanopsin system.

PLoS ONE, 2011
Animals have evolved specialized photoreceptors in the retina and in extraocular tissues that allow them to measure light changes in their environment.
Vanessa Matos-Cruz, Joseph Blasic, Benjamin Nickle, Phyllis R Robinson, Samer Hattar, Marnie E Halpern   +5 more
doaj   +1 more source

Zebrafish Circadian Clock Entrainment and the Importance of Broad Spectral Light Sensitivity

Frontiers in Physiology, 2020
One of the key defining features of an endogenous circadian clock is that it can be entrained or set to local time. Though a number of cues can perform this role, light is the predominant environmental signal that acts to entrain circadian pacemakers in ...
Inga A. Frøland Steindal, David Whitmore, David Whitmore   +2 more
doaj   +1 more source

Exquisite light sensitivity of Drosophila melanogaster cryptochrome. [PDF]

PLoS Genetics, 2013
Drosophila melanogaster shows exquisite light sensitivity for modulation of circadian functions in vivo, yet the activities of the Drosophila circadian photopigment cryptochrome (CRY) have only been observed at high light levels.
Pooja Vinayak, Jamie Coupar, S Emile Hughes, Preeya Fozdar, Jack Kilby, Emma Garren, Taishi Yoshii, Jay Hirsh   +7 more
doaj   +1 more source

The science of color and color vision [PDF]

, 2021
A survey of color science and color ...
Byrne, Alex, Hilbert, David R.
core