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| Research article summary (published 4 May 2009): |
Temporal cortex participates in spontaneous perceptual reversal.
Full Abstract
The Necker cube is perceived as two distinct three-dimensional forms; participants experience alternation between two mutually exclusive perceptions. Perceptual dominance for one form tends to be maintained when the visual stimulus is intermittently removed. The effect is enhanced with the Necker lattice (an array of Necker cubes). Neural processes underlying perceptual reversal and stabilization are unknown. Functional MRI was used to investigate the brain regions involved. Regional activation differed between endogenous and stimulus-driven perceptual reversals, and between reversal and stabilization. Our results indicated that the right anterior portion of superior temporal sulcus is likely to be involved in perceptual stabilization (perceptual memory), whereas reversal is modulated by destabilizing influences from the right frontal lobe.
Author information
Author/s: Shen, Lin (L); Zeng, Zhi-Lei (ZL); Huang, Pei-Yu (PY); Li, Qi (Q); Mu, Jun (J); Huang, Xiao-Qi (XQ); Lui, Su (S); Gong, Qi-Yong (QY); Xie, Peng (P);
Affiliation: Department of Neurology, The First Affiliated Hospital, Chongqing Medical University, Chongqing.
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: Neuroreport (Neuroreport), published in England. (Language: eng)
Reference: 2009-May; vol 20 (issue 7) : pp 647-51
Dates: Created 2009/04/28; Completed 2009/06/16;
PMID: 19349925, status: MEDLINE (last retrieval date: 6/16/2009, IMS Date: 16 Jun 2009 00:00:00)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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