Right hemisphere specialization for the identification of emotional words and sentences: Evidence from stroke patients

This study examines the contribution of the lexical/verbal channel to emotional processing in 16 right brain-damaged (RBD), 16 left brain-damaged (LBD) and 16 normal control (NC) righthanded adults. Emotional lexical perception tasks were developed; analogous nonemotional tasks were created to contr...

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Veröffentlicht in:Neuropsychologia 1992-09, Vol.30 (9), p.827-844
Hauptverfasser: Borod, Joan C., Andelman, Fani, Obler, Loraine K., Tweedy, James R., Wilkowitz, Joan
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container_end_page 844
container_issue 9
container_start_page 827
container_title Neuropsychologia
container_volume 30
creator Borod, Joan C.
Andelman, Fani
Obler, Loraine K.
Tweedy, James R.
Wilkowitz, Joan
description This study examines the contribution of the lexical/verbal channel to emotional processing in 16 right brain-damaged (RBD), 16 left brain-damaged (LBD) and 16 normal control (NC) righthanded adults. Emotional lexical perception tasks were developed; analogous nonemotional tasks were created to control for cognitive and linguistic factors. The three subject groups were matched for gender, age and education. The brain-damaged groups were similar with respect to cerebrovascular etiology, months post-onset, sensory motor status and lesion location. Parallel emotional and nonemotional tasks included word identification, sentence identification and word discrimination. For both word tasks, RBDs were significantly more impaired than LBDs and NCs in the emotional condition. For all three tasks, RBDs showed a significantly greater performance discrepancy between emotional and nonemotional conditions than did LBDs or NCs. Results were not affected by the valence (i.e. positive/negative) of the stimuli. These findings suggest a dominant role for the right hemisphere in the perception of lexically-based emotional stimuli.
doi_str_mv 10.1016/0028-3932(92)90086-2
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subjects Aged
Anatomical correlates of behavior
Attention - physiology
Behavioral psychophysiology
Biological and medical sciences
Brain Damage, Chronic - physiopathology
Cerebral Infarction - physiopathology
Discrimination Learning - physiology
Dominance, Cerebral - physiology
Emotions - physiology
Female
Fundamental and applied biological sciences. Psychology
Humans
Male
Middle Aged
Neuropsychological Tests
Paired-Associate Learning - physiology
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Reading
Semantics
title Right hemisphere specialization for the identification of emotional words and sentences: Evidence from stroke patients
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