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Effect of temporal constraints on hemispheric asymmetries during spatial frequency processing.
Brain Cogn. 2006 Dec; 62(3):214-20.BC

Abstract

Studies on functional hemispheric asymmetries have suggested that the right vs. left hemisphere should be predominantly involved in low vs. high spatial frequency (SF) analysis, respectively. By manipulating exposure duration of filtered natural scene images, we examined whether the temporal characteristics of SF analysis (i.e., the temporal precedence of low on high spatial frequencies) may interfere with hemispheric specialization. Results showed the classical hemispheric specialization pattern for brief exposure duration and a trend to a right hemisphere advantage irrespective of the SF content for longer exposure duration. The present study suggests that the hemispheric specialization pattern for visual information processing should be considered as a dynamic system, wherein the superiority of one hemisphere over the other could change according to the level of temporal constraints: the higher the temporal constraints of the task, the more the hemispheres are specialized in SF processing.

Authors+Show Affiliations

INSERM U455, Hopital Purpan, Toulouse, France. carole.peyrin@upmf-grenoble.frNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16837115

Citation

Peyrin, Carole, et al. "Effect of Temporal Constraints On Hemispheric Asymmetries During Spatial Frequency Processing." Brain and Cognition, vol. 62, no. 3, 2006, pp. 214-20.
Peyrin C, Mermillod M, Chokron S, et al. Effect of temporal constraints on hemispheric asymmetries during spatial frequency processing. Brain Cogn. 2006;62(3):214-20.
Peyrin, C., Mermillod, M., Chokron, S., & Marendaz, C. (2006). Effect of temporal constraints on hemispheric asymmetries during spatial frequency processing. Brain and Cognition, 62(3), 214-20.
Peyrin C, et al. Effect of Temporal Constraints On Hemispheric Asymmetries During Spatial Frequency Processing. Brain Cogn. 2006;62(3):214-20. PubMed PMID: 16837115.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of temporal constraints on hemispheric asymmetries during spatial frequency processing. AU - Peyrin,Carole, AU - Mermillod,Martial, AU - Chokron,Sylvie, AU - Marendaz,Christian, Y1 - 2006/07/11/ PY - 2005/07/05/received PY - 2006/05/18/revised PY - 2006/05/19/accepted PY - 2006/7/14/pubmed PY - 2007/1/12/medline PY - 2006/7/14/entrez SP - 214 EP - 20 JF - Brain and cognition JO - Brain Cogn VL - 62 IS - 3 N2 - Studies on functional hemispheric asymmetries have suggested that the right vs. left hemisphere should be predominantly involved in low vs. high spatial frequency (SF) analysis, respectively. By manipulating exposure duration of filtered natural scene images, we examined whether the temporal characteristics of SF analysis (i.e., the temporal precedence of low on high spatial frequencies) may interfere with hemispheric specialization. Results showed the classical hemispheric specialization pattern for brief exposure duration and a trend to a right hemisphere advantage irrespective of the SF content for longer exposure duration. The present study suggests that the hemispheric specialization pattern for visual information processing should be considered as a dynamic system, wherein the superiority of one hemisphere over the other could change according to the level of temporal constraints: the higher the temporal constraints of the task, the more the hemispheres are specialized in SF processing. SN - 0278-2626 UR - https://www.unboundmedicine.com/medline/citation/16837115/Effect_of_temporal_constraints_on_hemispheric_asymmetries_during_spatial_frequency_processing_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0278-2626(06)00120-5 DB - PRIME DP - Unbound Medicine ER -