Eye-Position Signals in the Dorsal Visual System Are Accurate and Precise on Short Timescales
نویسندگان
چکیده
منابع مشابه
Eye-position signals in the dorsal visual system are accurate and precise on short timescales.
Eye-position signals (EPS) are found throughout the primate visual system and are thought to provide a mechanism for representing spatial locations in a manner that is robust to changes in eye position. It remains unknown, however, whether cortical EPS (also known as "gain fields") have the necessary spatial and temporal characteristics to fulfill their purported computational roles. To quantif...
متن کاملDynamics of Eye-Position Signals in the Dorsal Visual System
BACKGROUND Many visual areas of the primate brain contain signals related to the current position of the eyes in the orbit. These cortical eye-position signals are thought to underlie the transformation of retinal input-which changes with every eye movement-into a stable representation of visual space. For this coding scheme to work, such signals would need to be updated fast enough to keep up ...
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An internal sense of eye position is necessary to maintain the constancy of the visual world in spite of movements of the eyes. Neuroimaging studies have localized human homologs of monkey visual motion processing areas in MT/MST and also in the collateral sulcus (V4), an area that codes features within objects. We show that these two areas have a baseline fMRI signal that is modulated by eye p...
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Eye movements are essential to primate vision but introduce potentially disruptive displacements of the retinal image. To maintain stable vision, the brain is thought to rely on neurons that carry both visual signals and information about the current direction of gaze in their firing rates. We have shown previously that these neurons provide an accurate representation of eye position during fix...
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Editor's Note: These short, critical reviews of recent papers in the Journal, written exclusively by graduate students or postdoctoral fellows, are intended to summarize the important findings of the paper and provide additional insight and commentary. For more information on the format and purpose of the Journal Club, please see Review of Zimmermann et al. To properly control body movements, t...
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ژورنال
عنوان ژورنال: Journal of Neuroscience
سال: 2013
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.0576-13.2013