Title: Inferotemporal neurons represent low-dimensional configurations of parameterized shapes
Authors: Op de Beeck, Hans ×
Wagemans, Johan
Vogels, Rufin #
Issue Date: 2001
Publisher: Nature America Inc.
Series Title: Nature neuroscience vol:4 issue:12 pages:1244-1252
Abstract: Behavioral studies with parameterized shapes have shown that the similarities among these complex stimuli can be represented using a low number of dimensions. Using psychophysical measurements and single-cell recordings in macaque inferotemporal (IT) cortex, we found an agreement between low-dimensional parametric configurations of shapes and the representation of shape similarity at the behavioral and neuronal level. The shape configurations, computed from both the perceived and neuron-based similarities, revealed a low number of dimensions and contained the same stimulus order as the parametric configurations. However, at a metric level, the behavioral and neural representations deviated consistently from the parametric configurations. These findings suggest an ordinally faithful but metrically biased representation of shape similarity in IT.
ISSN: 1097-6256
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Research Group Neurophysiology
Laboratory for Experimental Psychology
× corresponding author
# (joint) last author

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