Cerebral Lateralization and Functionality

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Cerebral Lateralization and Functionality
PSY/240 The Brain, the Body, and the Mind
October 19, 2012

Cerebral Lateralization and Functionality

LEFT HEMISPHERE RIGHT HEMISPHERE

Vision
Faces
Geometric patterns Emotional expression
Audition
Nonlanguage sounds
Music

Touch
Tactile patterns
Braille
Movement
Movement in spatial
patterns
Memory
Nonverbal memory
Perceptual aspects of
memories
Language
Emotional content

Spatial
Ability
Mental rotation of shapes
Geometry
Direction
Distance

General functions

Vision
Words
Letters

Audition
Language
Sounds

Touch

Movement
Complex movement
Ipsilateral movement
Memory
Verbal memory
Finding meaning in memories

Language
Speech
Reading
Writing
Arithmetic
Spatial
Ability

Appendix E

The human brain is comprised of two hemispheres, a right side, and a left side. These two halves are almost identical in structure and are connected by the corpus callosum. Many studies have been done on how these two hemispheres work together and separately. Research and studies on cerebral lateralization include four methods. These methods include, comparing the effects of unilateral brain lesions, the sodium amytal test, the dichotic listening test, and functional brain imaging (Pinel, 2011). A sodium amytal test is a technique used in cerebral lateralization that helps researcher’s access language abilities before neurosurgery. In the amytal test, sodium amytal is injected into a patient’s carotid artery. This injection anesthetizes the hemisphere on the side of the injection and allows the other...
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