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Dynamics of visual receptive fields in the macaque frontal eye field.

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Date
2015-12
Authors
Mayo, J Patrick
DiTomasso, Amie R
Sommer, Marc A
Smith, Matthew A
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Abstract
Neuronal receptive fields (RFs) provide the foundation for understanding systems-level sensory processing. In early visual areas, investigators have mapped RFs in detail using stochastic stimuli and sophisticated analytical approaches. Much less is known about RFs in prefrontal cortex. Visual stimuli used for mapping RFs in prefrontal cortex tend to cover a small range of spatial and temporal parameters, making it difficult to understand their role in visual processing. To address these shortcomings, we implemented a generalized linear model to measure the RFs of neurons in the macaque frontal eye field (FEF) in response to sparse, full-field stimuli. Our high-resolution, probabilistic approach tracked the evolution of RFs during passive fixation, and we validated our results against conventional measures. We found that FEF neurons exhibited a surprising level of sensitivity to stimuli presented as briefly as 10 ms or to multiple dots presented simultaneously, suggesting that FEF visual responses are more precise than previously appreciated. FEF RF spatial structures were largely maintained over time and between stimulus conditions. Our results demonstrate that the application of probabilistic RF mapping to FEF and similar association areas is an important tool for clarifying the neuronal mechanisms of cognition.
Type
Journal article
Subject
frontal eye field
macaque
receptive field
saccades
vision
Animals
Evoked Potentials, Visual
Female
Macaca mulatta
Male
Models, Neurological
Prefrontal Cortex
Visual Fields
Permalink
https://hdl.handle.net/10161/10632
Published Version (Please cite this version)
10.1152/jn.00746.2015
Publication Info
Mayo, J Patrick; DiTomasso, Amie R; Sommer, Marc A; & Smith, Matthew A (2015). Dynamics of visual receptive fields in the macaque frontal eye field. J Neurophysiol, 114(6). pp. 3201-3210. 10.1152/jn.00746.2015. Retrieved from https://hdl.handle.net/10161/10632.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

J. Patrick Mayo

Affiliate
Sommer

Marc A. Sommer

Professor of Biomedical Engineering
We study circuits for cognition. Using a combination of neurophysiology and biomedical engineering, we focus on the interaction between brain areas during visual perception, decision-making, and motor planning. Specific projects include the role of frontal cortex in metacognition, the role of cerebellar-frontal circuits in action timing, the neural basis of "good enough" decision-making (satisficing), and the neural mechanisms of transcranial magnetic stimulation (TMS).
Alphabetical list of authors with Scholars@Duke profiles.
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