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Computational neuroimaging of human visual cortex.

¹Neuroscience Program, Stanford University, California 94305, USA. wandell@stanford.edu

Annual Review of Neuroscience

|April 15, 1999

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Functional magnetic resonance imaging (fMRI) now allows measurement of hidden brain activity. This review covers advances in mapping visual perception, including motion, color, and attention in the human brain.

Area of Science:

Neuroimaging
Cognitive Neuroscience
Visual Perception

Background:

Functional magnetic resonance imaging (fMRI) offers a non-invasive method to study the human brain.
Previous limitations in neuroimaging hindered detailed analysis of visual processing.
Advances enable precise measurement of neural responses in alert individuals.

Purpose of the Study:

To review recent advancements in using fMRI to understand visual perception.
To highlight the capability of fMRI in mapping specific visual functions in individual brains.
To demonstrate the integration of fMRI with other vision science methodologies.

Main Methods:

Utilizing functional magnetic resonance imaging (fMRI) to probe brain activity.
Mapping retinotopically organized visual areas within individual human brains.

Related Experiment Videos

Measuring neural responses related to visual stimuli (contrast, color, motion) and attentional modulation.

Main Results:

Identification and mapping of several retinotopic visual areas.
Localization of motion-sensitive regions in individual brains.
Quantification of responses to visual attributes like color and motion, and effects of attention.

Conclusions:

fMRI is a powerful tool for investigating visual computation in humans.
Neuroimaging can now reveal detailed information about visual processing in individual brains.
Coupling fMRI with other vision science methods enhances understanding of visual computation.