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Vision

Vision

Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.

Visual System

Visual System

Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...

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Related Experiment Video

Updated: Jul 1, 2025

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

Published on: August 1, 2018

Developmentally stable representations of naturalistic image structure in macaque visual cortex.

Gerick M Lee¹, C L Rodríguez-Deliz¹, Brittany N Bushnell¹

¹Center for Neural Science New York University New York, NY, USA 10003.

Biorxiv : the Preprint Server for Biology

|March 11, 2024

Summary

Visual development in macaque monkeys shows that sensitivity to naturalistic textures emerges by 25 weeks. Neural responses in visual cortex areas V1, V2, and V4 mature early, with increasing sensitivity to naturalistic structure as visual information progresses through these areas.

Keywords:

development form vision macaque naturalistic images visual cortex

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Last Updated: Jul 1, 2025

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

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Published on: August 1, 2018

Large-scale Reconstructions and Independent, Unbiased Clustering Based on Morphological Metrics to Classify Neurons in Selective Populations

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Targeted Labeling of Neurons in a Specific Functional Micro-domain of the Neocortex by Combining Intrinsic Signal and Two-photon Imaging

Published on: December 12, 2012

Area of Science:

Neuroscience
Visual Development
Primate Vision

Background:

The neural basis of visual perception relies on processing complex naturalistic stimuli.
Understanding how visual processing areas mature is crucial for comprehending typical and atypical visual development.

Conclusions:

Visual processing of naturalistic textures in macaque monkeys matures behaviorally around 25 weeks.
Early visual areas (V1-V4) exhibit stable neural sensitivity to naturalistic structure from a young age, with increasing processing along the ventral stream.
The inferotemporal cortex (IT) shows a representational structure for naturalistic textures that aligns with higher-tier visual areas like V4, even during development.