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Hemispheric Specialization

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Encyclopedia of Animal Cognition and Behavior

Synonyms

Behavioral lateralization; Brain/cerebral/hemispheric asymmetry; Hemispheric dominance

Definition

Hemispheric specialization refers to the differential role of the left or right brain side in processing a specific neuronal task or behavior. One hemisphere might be predisposed to adopt a function because of specific structural and/or computational characteristics. This dominance can be expressed in enhanced sensory performances, decision-making, and/or superior motor skills.

Introduction

Bilaterian animals are characterized by a basically symmetrical body plan including a nervous system typically ending with brain-like structures at the front. Each half of the brain processes information from one environmental half field and controls one body side. In several cases, however, one hemisphere dominates a specific function (hemispheric specialization). Consequently, this hemisphere takes control in organizing and controlling motor responses that become visible as asymmetrical...

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Correspondence to Martina Manns .

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Manns, M. (2019). Hemispheric Specialization. In: Vonk, J., Shackelford, T. (eds) Encyclopedia of Animal Cognition and Behavior. Springer, Cham. https://doi.org/10.1007/978-3-319-47829-6_1392-1

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  • DOI: https://doi.org/10.1007/978-3-319-47829-6_1392-1

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