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Related Experiment Video

Updated: May 19, 2026

Simultaneous Eye Tracking and Single-Neuron Recordings in Human Epilepsy Patients

Simultaneous Eye Tracking and Single-Neuron Recordings in Human Epilepsy Patients

Published on: June 17, 2019

Blindsight: spontaneous scanning of complex scenes.

Robert W Kentridge¹

¹Department of Psychology, Durham University, Durham DH1 3LE, UK. Robert.Kentridge@durham.ac.uk

Current Biology : CB

|August 11, 2012

Summary

Monkeys with blindsight reveal which visual features remain detectable without a primary visual cortex. These findings offer new avenues for rehabilitation strategies in humans with vision loss.

Area of Science:

Neuroscience
Vision Science

Background:

Blindsight is a phenomenon where individuals with damage to the primary visual cortex can respond to visual stimuli without conscious awareness.
The specific visual properties that remain detectable in blindsight are not fully understood.

Purpose of the Study:

To investigate which visual attributes are processed and remain salient in the absence of a functioning primary visual cortex.
To explore potential applications of these findings for improving rehabilitation in human hemianopia.

Main Methods:

A study was conducted using non-human primates exhibiting blindsight.
Researchers assessed the monkeys' ability to detect and discriminate various visual stimuli.

Main Results:

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How to Build a Dichoptic Presentation System That Includes an Eye Tracker

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Published on: September 6, 2017

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Last Updated: May 19, 2026

Simultaneous Eye Tracking and Single-Neuron Recordings in Human Epilepsy Patients

Simultaneous Eye Tracking and Single-Neuron Recordings in Human Epilepsy Patients

Published on: June 17, 2019

How to Build a Dichoptic Presentation System That Includes an Eye Tracker

How to Build a Dichoptic Presentation System That Includes an Eye Tracker

Published on: September 6, 2017

Certain visual properties, such as motion and orientation, were found to be salient even without primary visual cortex input.

The study identified specific visual processing pathways that bypass the damaged area.

Conclusions:

The primary visual cortex is not essential for the perception of all visual information.
Understanding residual visual processing in blindsight can inform the development of targeted therapies for vision impairment.