Journal ArticleDOI
Right frontal lobe activation and right hemisphere performance. Decrement during a depressed mood.
TLDR
For instance, this paper found that depressed mood is characterized by asymmetrical EEG activation over the frontal lobes, with relatively greater activity in the right frontal region than the left frontal region.Abstract:
• Evidence from psychiatric patients has suggested that depressive affect may coincide with a decrement in the functioning of the right cerebral hemisphere. We have observed that college students who reported greater depression also reported less vivid imagery. Students undergoing experimental induction of depressive and euphoric moods in the laboratory showed an auditory attentional bias and impaired imagery during the depression condition, while their arithmetic task performance was unchanged. A second mood-induction experiment indicated a depressed mood to be characterized by asymmetrical EEG activation over the frontal lobes, with relatively greater activity in the right frontal region. These observations suggest that anterior regions of the brain may modulate the differential effects of emotional arousal on the information-processing capacities of the cerebral hemispheres.read more
Citations
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Journal ArticleDOI
Cerebral laterality and emotion: The neurology of depression
TL;DR: A converging body of clinical and experimental studies indicate that the right hemisphere may be uniquely specialized for the perception, experience, and expression of emotion.
Journal ArticleDOI
Decreased sensitivity to experimental pain in adjustment disorder
Karl-Jürgen Bär,Stanislaw Brehm,Michael Karl Boettger,Gerd Wagner,Silke Boettger,Heinrich Sauer +5 more
TL;DR: An altered perception of pain has been described for several psychiatric disorders, but the influence of adjustment disorders (AD) on pain perception has not been described.
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The effect of an intensive behavioral program on the distribution of EEG alpha power in stutterers during the processing of verbal and visuospatial information
TL;DR: For instance, this article found that stutterers showed greater than normal activation of the posterior frontal region of the right hemisphere during the performance of speech tasks after an intensive behavioral treatment program, which resulted in a reversal of the previous R/L interhemispheric alpha relationships with the left posterior frontal frontal region showing greater activation during speech after treatment.
Journal ArticleDOI
Differential hemispheric asymmetries in depression and anxiety: a reaction-time study.
TL;DR: Two alternative interpretations are discussed: depression may engage the right hemisphere's mechanisms, interfering with its functioning at a premotor level, or it may influence the regulation of performance by arousal and vigilance mechanisms lateralized to theright hemisphere, possibly operating at an earlier sensory stage.
Journal ArticleDOI
Cerebral Laterality and Psychopathology: A Review of Dichotic Listening Studies
TL;DR: Evidence suggests the existence of homogeneous subgroups with distinctive laterality patterns and clinical characteristics in schizophrenia and affective disorders.
References
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Journal ArticleDOI
Emotional behavior and hemispheric side of the lesion.
TL;DR: The depressivecatastrophic reactions of the left brain-damaged patients were found chiefly in subjects with severe aphasia, and appeared generally after repeated failures in verbal communication, and seemed due, as Goldstein argued, to the desperate reaction of the organism, confronted with a task that it cannot face.
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Right-left asymmetrics in the brain
TL;DR: Anatomical asymmetries may help to explain the range of human talents, recovery from acquired disorders of language function, certain childhood learning disabilities, some dementing illnesses of middle life, and the evidence for behavioral lateralization in nonhuman primates.
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Psychosis and temporal lobe epilepsy. A controlled investigation.
TL;DR: A controlled investigation comparing a population of 50 temporal lobe epileptics with psychotic episodes with 50 randomly selected temporal lobe epilepsyptics who had never experienced psychotic disturbances showed that these patients had no history of psychotic disturbances.
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Possible Basis for the Evolution of Lateral Specialization of the Human Brain
TL;DR: Patients whose neocortical commissures have been surgically divided for the control of epilepsy have revealed an organizational differentiation of the hemispheres for perceptual and cognitive functions.