Computational Modeling of Responses in Human Visual Cortex [chapter]

B.A. Wandell, J. Winawer, K.N. Kay
2015 Brain Mapping  
Glossary 2 • fMRI -functional magnetic resonance imaging • ECoG -Electrocorticography (electrical recordings from intracranial electrodes) • Visual field map (retinotopic map) -Spatial representation of the visual field within visual cortex • Visual receptive field -The region of space in which the presence of a stimulus elicits a response • Striate cortex -V1 • Extrastriate cortex -Visual cortex outside of V1, including V2, V3 and so forth • Stimulus-referred -Experimental designs that
more » ... rize the neural response with respect to the stimulus properties Synopsis A new generation of models and experimental designs are clarifying the computational principles in human visual cortex. Over the first two decades of functional magnetic resonance imaging, steady progress in measuring visual cortex led to the identification of more than twenty retinotopically mapped cortical areas. New models are being developed to predict responses in these maps and thus clarify their functional roles. Many of these models are based on a stimulus-referred approach, so that the computational principles can be tested using multiple types of measurements -spanning functional MRI, intracranial recordings, and single-unit measurements. The stimulus-referred approach promises to build an integrated view of neural computations measured across temporal and spatial scales.
doi:10.1016/b978-0-12-397025-1.00347-x fatcat:kqej2gekunfcthihuspeuw5tcm