Probing Computation in the Primate Visual System at Single-Cone Resolution.
Annu Rev Neurosci
; 42: 169-186, 2019 07 08.
Article
in En
| MEDLINE
| ID: mdl-30857477
ABSTRACT
Daylight vision begins when light activates cone photoreceptors in the retina, creating spatial patterns of neural activity. These cone signals are then combined and processed in downstream neural circuits, ultimately producing visual perception. Recent technical advances have made it possible to deliver visual stimuli to the retina that probe this processing by the visual system at its elementary resolution of individual cones. Physiological recordings from nonhuman primate retinas reveal the spatial organization of cone signals in retinal ganglion cells, including how signals from cones of different types are combined to support both spatial and color vision. Psychophysical experiments with human subjects characterize the visual sensations evoked by stimulating a single cone, including the perception of color. Future combined physiological and psychophysical experiments focusing on probing the elementary visual inputs are likely to clarify how neural processing generates our perception of the visual world.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Primates
/
Vision, Ocular
/
Retinal Cone Photoreceptor Cells
Limits:
Animals
Language:
En
Journal:
Annu Rev Neurosci
Year:
2019
Document type:
Article