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Hemispheric asymmetry for spatially filtered stimuli belonging to different semantic categories.
Brain Res Cogn Brain Res. 2004 Aug; 20(3):519-24.BR

Abstract

The hemispheric specialization for processing visual stimuli as a function of spatial-frequency content and semantic category was investigated. Spatially filtered pictures of animals and tools were displayed to both hemifields at nine levels of spatial-frequency filtering following a coarse-to-fine design. Results showed a differential hemispheric specialization in relation to the semantic category of stimuli. Animals might be identified at low spatial frequencies (coarse information) in a similar extent in both hemifield conditions, while a hemispheric dissociation was found for tools (the increasing of levels of high-spatial frequency information was especially needed when such stimuli were presented to the left visual field /right hemisphere (RH) relative to that for right visual field/left hemisphere presentations).

Authors+Show Affiliations

Viggiano MP
Dipartimento di Psicologia, Università degli Studi di Firenze, via San Niccolò 93, 50125 Firenze, Italy. mpviggiano@psico.unifi.it
Costantini A
No affiliation info available
Vannucci M
No affiliation info available
Righi S
No affiliation info available

MeSH

AdultAnimalsDominance, CerebralHumansPattern Recognition, VisualPhotic StimulationSemanticsVisual Fields

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15268928

Citation

Viggiano, Maria Pia, et al. "Hemispheric Asymmetry for Spatially Filtered Stimuli Belonging to Different Semantic Categories." Brain Research. Cognitive Brain Research, vol. 20, no. 3, 2004, pp. 519-24.
Viggiano MP, Costantini A, Vannucci M, et al. Hemispheric asymmetry for spatially filtered stimuli belonging to different semantic categories. Brain Res Cogn Brain Res. 2004;20(3):519-24.
Viggiano, M. P., Costantini, A., Vannucci, M., & Righi, S. (2004). Hemispheric asymmetry for spatially filtered stimuli belonging to different semantic categories. Brain Research. Cognitive Brain Research, 20(3), 519-24.
Viggiano MP, et al. Hemispheric Asymmetry for Spatially Filtered Stimuli Belonging to Different Semantic Categories. Brain Res Cogn Brain Res. 2004;20(3):519-24. PubMed PMID: 15268928.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Hemispheric asymmetry for spatially filtered stimuli belonging to different semantic categories. AU - Viggiano,Maria Pia, AU - Costantini,Andrea, AU - Vannucci,Manila, AU - Righi,Stefania, PY - 2004/03/30/accepted PY - 2004/7/23/pubmed PY - 2004/10/19/medline PY - 2004/7/23/entrez SP - 519 EP - 24 JF - Brain research. Cognitive brain research JO - Brain Res Cogn Brain Res VL - 20 IS - 3 N2 - The hemispheric specialization for processing visual stimuli as a function of spatial-frequency content and semantic category was investigated. Spatially filtered pictures of animals and tools were displayed to both hemifields at nine levels of spatial-frequency filtering following a coarse-to-fine design. Results showed a differential hemispheric specialization in relation to the semantic category of stimuli. Animals might be identified at low spatial frequencies (coarse information) in a similar extent in both hemifield conditions, while a hemispheric dissociation was found for tools (the increasing of levels of high-spatial frequency information was especially needed when such stimuli were presented to the left visual field /right hemisphere (RH) relative to that for right visual field/left hemisphere presentations). SN - 0926-6410 UR - https://www.unboundmedicine.com/medline/citation/15268928/Hemispheric_asymmetry_for_spatially_filtered_stimuli_belonging_to_different_semantic_categories_ DB - PRIME DP - Unbound Medicine ER -