Hostname: page-component-7dd5485656-zlgnt Total loading time: 0 Render date: 2025-10-31T03:34:55.679Z Has data issue: false hasContentIssue false
  • English
  • Français

Neural substrates of visual percepts, imagery, and hallucinations

Published online by Cambridge University Press:  19 March 2003

Stephen Grossberg
Stephen Grossberg
Affiliation:
Department of Cognitive and Neural Systems and Center for Adaptive Systems, Boston University, Boston, MA 02215 steve@bu.edu http://www.cns.bu.edu/Profiles/Grossberg
Get access Rights & Permissions [Opens in a new window]

Abstract

Recent neural models clarify many properties of mental imagery as part of the process whereby bottom-up visual information is influenced by top-down expectations, and how these expectations control visual attention. Volitional signals can transform modulatory top-down signals into supra-threshold imagery. Visual hallucinations can occur when the normal control of these volitional signals is lost.

Information

Type
Brief Report
Information
Behavioral and Brain Sciences , Volume 25 , Issue 2 , April 2002 , pp. 194 - 195
Copyright
© 2002 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable