arrow
Return

Medial Axis Shape Coding in Macaque Inferotemporal Cortex

delete2012-06-01
delete112
delete
OA
AI
H
Hung, Chia-Chun
E
Eric T. Carlson
C
Charles E. Connor *
DOI:10.1016/j.neuron.2012.04.029delete
deleteOriginal
deleteOriginal request for help
deleteShare
deleteSave
Abstract

Abstract

En 中文
The basic, still unanswered question about visual object representation is this: what specific information is encoded by neural signals? Theorists have long predicted that neurons would encode medial axis or skeletal object shape, yet recent studies reveal instead neural coding of boundary or surface shape. Here, we addressed this theoretical/experimental disconnect, using adaptive shape sampling to demonstrate explicit coding of medial axis shape in high-level object cortex (macaque monkey inferotemporal cortex or IT). Our metric shape analyses revealed a coding continuum, along which most neurons represent a configuration of both medial axis and surface components. Thus, IT response functions embody a rich basis set for simultaneously representing skeletal and external shape of complex objects. This would be especially useful for representing biological shapes, which are often characterized by both complex, articulated skeletal structure and specific surface features.
Keywords:
LAMINAR CORTICAL DYNAMICS
INFERIOR TEMPORAL CORTEX
3D SURFACE PERCEPTION
OBJECT REPRESENTATIONS
SINGLE NEURONS
AREA
RECOGNITION
FEATURES
SELECTIVITY
FORM

Journal

Neuron cover
Neuron
IF:
15
Papers:
1.4W
Citations:
9.9W

Organization

J
Johns Hopkins University
Scholars:
10.2W
Papers: 8.8W
Citations: 13.0W
Cited Papers

Cited Papers

errShare
errSave
Highly enantioselective direct vinylogous Michael addition of γ-substituted deconjugated butenolides to maleimides catalyzed by chiral squaramides
err2013-01-01
err0
PREAI
errYun-Long Guo; Li-Na Jia; Lin Peng; Liang-Wen Qi; Jing Zhou; Fang Tian; Xiao-Ying Xu; Li-Xin Wang
errShare
errSave
errShare
errSave
EXPERIENCING AND PERCEIVING VISUAL SURFACES
errSCIENCE
IF45.8
err1992-09-04
err287
PREAI
errNAKAYAMA, K; SHIMOJO, S
errShare
errSave
Which Psychosocial Factors Best Predict Cognitive Performance in Older Adults?
err2014-03-31
err0
errOAAI
errLaura B. Zahodne; Cindy J. Nowinski; Richard C. Gershon; Jennifer J. Manly
errShare
errSave
Golfers have better balance control and confidence than healthy controls
err2011-03-17
err0
PREAI
errKelly L. Gao; Christina W. Y. Hui-Chan; William W. N. Tsang
errShare
errSave
researcher View more