Evidence of altered dominance in children with congenital spastic hemiplegia

1995 ◽  
Vol 1 (3) ◽  
pp. 261-270 ◽  
Author(s):  
Marit Korkman ◽  
Lennart von Wendt
Keyword(s):  
Brain Damage ◽  
Left Hemisphere ◽  
Neuropsychological Tests ◽  
Right Hemisphere ◽  
Individual Variability ◽  
Right Hemisphere Damage ◽  
Spastic Hemiplegia ◽  
Ear Advantage ◽  
The Right ◽  
High Degree

AbstractThe study aimed at investigating lateralization effects and signs of transfer and crowding in children with congenital lateralized brain damage with the aid of a dichotic listening test, a chimeric test, and verbal and nonverbal neuropsychological tests. Thirty-three children with spastic hemiplegia and 86 control children (age 5.0–12.0 yr) were assessed. Children with left-hemisphere damage (n = 17) were found to have a pathological left-ear advantage for verbal material, and children with right-hemisphere damage (n = 16) were found to have a pathological right visual half-field advantage for visual material. Children with left-hemisphere damage and a left-ear advantage on the dichotic test were also found to have a right visual half-field advantage on the chimeric test, which was regarded as a sign of reversed dominance. No verbal or nonverbal differences emerged between the left-hemisphere and the right-hemisphere damage groups, nor did differences emerge when the children were reclassified by considering children with left-hemisphere damage and signs of reversed dominance as having damage to the nondominant hemisphere. It was concluded that although lateralized brain damage may alter the dominance for verbal and visual functions, there is still considerable inter-individual variability with respect to inter- and intrahemispheric neural adjustment to damage. The dichotic and the chimeric tests did not indicate the presence of brain damage accurately, but they indicated the lateralization of damage in children with stated abnormality with a high degree (91.3%) of accuracy. (JINS, 1995, I, 261–270.)

Phrase comprehension after brain damage

1982 ◽  
Vol 3 (3) ◽  
pp. 263-278 ◽  
Author(s):  
Rita Sloan Berndt ◽  
Alfonso Caramazza
Keyword(s):  
Brain Damage ◽  
Left Hemisphere ◽  
Language Comprehension ◽  
Right Hemisphere ◽  
The Other ◽  
Right Hemisphere Damage ◽  
Dimensional Adjectives ◽  
Neurologically Normal ◽  
The Right

ABSTRACTComprehension of six dimensional adjectives was found to be intact in groups of left hemisphere-damaged, right hemisphere-damaged and neurologically normal patients. Phrases with those adjectives were interpreted quite differently by left hemisphere-damaged patients than by the other two groups, and a subgroup of left-damaged patients appeared to be responsible for that group's deviant responses to phrases such as slightly bigger. All patients in the left-damaged group had some difficulty with negative phrases such as not big, however. Patients with right hemisphere-damage had difficulty interpreting only negative phrases with small. Results are interpreted with reference to Luria's discussion of semantic aphasia, and with regard to recent findings concerning the role of the right hemisphere in language comprehension.

scholarly journals Visuospatial Attention and the Split Brain

Physiology ◽  
1997 ◽  
Vol 12 (5) ◽  
pp. 226-231
Author(s):  
G Berlucchi ◽  
GR Mangun ◽  
MS Gazzaniga
Keyword(s):  
Visual Field ◽  
Left Hemisphere ◽  
Right Hemisphere ◽  
Visuospatial Attention ◽  
Attentional Biases ◽  
Split Brain ◽  
Right Hemisphere Damage ◽  
Entire Visual Field ◽  
The Right

In callosotomy patients, the right hemisphere attends to the entire visual field, whereas the left hemisphere attends to the right field only. The occurence of rightward attentional biases, simulating a hemineglect from right hemisphere damage, suggests that in these patients visuospatial attention tends to be controlled by the left hemisphere.

scholarly journals Artistic Production Following Brain Damage: A Study of Three Artists

Leonardo ◽  
2011 ◽  
Vol 44 (5) ◽  
pp. 405-410 ◽  
Author(s):  
Anjan Chatterjee ◽  
Bianca Bromberger ◽  
William B. Smith ◽  
Rebecca Sternschein ◽  
Page Widick
Keyword(s):  
Brain Damage ◽  
Right Hemisphere ◽  
Neural Basis ◽  
Left Brain ◽  
Right Hemisphere Damage ◽  
Right Brain ◽  
Art Production ◽  
The Right ◽  
Left Brain Damage ◽  
Insight Into

We know little about the neurologic bases of art production. The idea that the right brain hemisphere is the “artistic brain” is widely held, despite the lack of evidence for this claim. Artists with brain damage can offer insight into these laterality questions. The authors used an instrument called the Assessment of Art Attributes to examine the work of two individuals with left-brain damage and one with right-hemisphere damage. In each case, their art became more abstract and distorted and less realistic. They also painted with looser strokes, less depth and more vibrant colors. No unique pattern was observed following right-brain damage. However, art produced after left-brain damage also became more symbolic. These results show that the neural basis of art production is distributed across both hemispheres in the human brain.

Investigating Musical Emotions in People with Unilateral Brain Damage

2021 ◽  
pp. 170-174
Author(s):  
Amy M. Belfi ◽  
Agathe Pralus ◽  
Catherine Hirel ◽  
Daniel Tranel ◽  
Barbara Tillmann ◽  
...  
Keyword(s):  
Brain Damage ◽  
Left Hemisphere ◽  
Right Hemisphere ◽  
Right Hemisphere Damage ◽  
Perceived Intensity ◽  
Unilateral Brain Damage ◽  
The Brain ◽  
Unilateral Brain ◽  
Emotions In Music

The study under discussion sought to investigate the hemispheric laterality of musical emotions: Is one hemisphere of the brain preferentially involved in recognizing emotions in music? The authors took a neuropsychological approach to answer this question by studying emotional judgments of music in people with brain damage to either hemisphere. Their results indicated that individuals with left hemisphere damage were significantly impaired in recognizing musical emotions as compared to healthy comparison participants. In contrast, individuals with right hemisphere damage were not impaired at identifying emotions in music, but rated the perceived intensity of the emotions lower for sadness and fear (as compared to joy and serenity). Their work suggests that the identification of emotions in music and the perceived intensity of the emotions expressed may rely on different hemispheres of the brain.

scholarly journals Clustering and switching in verbal fluency: a comparison between control and individuals with brain damage

CoDAS ◽  
2022 ◽  
Vol 34 (2) ◽  
Author(s):  
Karina Carlesso Pagliarin ◽  
Eduarda Giovelli Fernandes ◽  
Maryndia Diehl Muller ◽  
Caroline Rodrigues Portalete ◽  
Rochele Paz Fonseca ◽  
...  
Keyword(s):  
Brain Damage ◽  
Left Hemisphere ◽  
Verbal Fluency ◽  
Right Hemisphere ◽  
Control Subjects ◽  
Right Hemisphere Damage ◽  
Unilateral Brain Damage ◽  
Healthy Control ◽  
Language Assessment Battery ◽  
Fluency Task

ABSTRACT Purpose The aim of this study is to analyze and compare the performance and strategies used by control subjects and patients with unilateral brain damage on phonemic and semantic Verbal Fluency tasks. Methods The sample consisted of 104 participants divided into four groups (26 with left hemisphere damage and aphasia- LHDa, 28 with left hemisphere damage and no aphasia- LHDna, 25 with right hemisphere damage- RHD and 25 neurologically healthy control subjects). All participants were administered the phonemic (“M” letter-based) and semantic (animals) verbal fluency tasks from the Montreal-Toulouse Language Assessment Battery (MTL-BR). Results Patients in the LHDa group showed the worst performance (fewer words produced, fewer clusters and switches) in both types of fluency task. RHD group showed fewer switching productions when compared with controls and LHDna had fewer words productions than controls in the first 30 seconds block. Conclusion Our findings suggest that the LHDa group obtained lower scores in most measures of SVF and PVF when compared to the other groups.

Correlations of Wechsler-Bellevue Rank Orders of Subtest Means in Lateralized and Non-Lateralized Brain-Damaged Groups

1964 ◽  
Vol 19 (2) ◽  
pp. 391-399 ◽  
Author(s):  
Charles G. Matthews ◽  
Ralph M. Reitan
Keyword(s):  
Brain Damage ◽  
Left Hemisphere ◽  
Right Hemisphere ◽  
Rank Order ◽  
Brain Dysfunction ◽  
Visual Field Defects ◽  
Rank Orders ◽  
Wide Range ◽  
Spatial Configurations ◽  
The Right

Rank difference coefficients of correlation were computed between Wechsler-Bellevue (Form I) rank orders of subtest means in 20 groups of adult Ss with verified brain damage. Six groups with right hemisphere damage, 6 groups with left hemisphere damage, and 8 groups with non-lateralized brain damage were included, with the groups composed according to a variety of lateralizing criteria including independent conclusions drawn from neurological, neurosurgical and neuropathological findings, EEG lateralization, visual field defects, suppression phenomena, dysphasia and difficulty in copying spatial configurations. Consistencies in rank orders of subtest means far beyond chance expectancies were demonstrated within the lateralized brain-damaged categories, while highly significant differences in subtest rank orders were shown between the right and left hemisphere groups. The results suggested that lateralization of brain lesions has a striking effect upon the rank order of Wechsler-Bellevue subtests and that consistent relationships obtain across a wide range of structural, electrophysiological and behavioral criteria of lateralized brain dysfunction.

Effects of Left and Right Cerebral Lesions on the Naming Process

1972 ◽  
Vol 35 (3) ◽  
pp. 787-798 ◽  
Author(s):  
Alexis M. Nehemkis ◽  
Peter M. Lewinsohn
Keyword(s):  
Adverse Effect ◽  
Left Hemisphere ◽  
Right Hemisphere ◽  
Cerebral Hemispheres ◽  
Semantic Interference ◽  
Cerebral Lesions ◽  
Right Hemisphere Damage ◽  
Functional Differences ◽  
Left And Right ◽  
The Right

This experiment tested two major hypotheses: (1) Left hemisphere damage will have a more adverse effect on the naming process than on the ability to read and (2) increments in semantic interference will disrupt the performance of patients with left-hemisphere damage more than that of patients with right-hemisphere damage. Patients with left cerebral lesions consistently performed more poorly than the right-hemisphere-damage patients across all stimulus and response conditions. Aphasic lefts had more difficulty with naming than with reading. Hypothesis 2 was not supported. The findings are discussed with reference to the adequacy of the “verbal-nonverbal” dichotomy for describing functional differences between the left and right cerebral hemispheres.

The Right Hemisphere Involvement in the Processing of Morphologically Derived Words

2003 ◽  
Vol 15 (3) ◽  
pp. 364-371 ◽  
Author(s):  
Paola Marangolo ◽  
Chiara Incoccia ◽  
Luigi Pizzamiglio ◽  
Umberto Sabatini ◽  
Alessandro Castriota-Scanderbeg ◽  
...  
Keyword(s):  
Brain Damage ◽  
Left Hemisphere ◽  
Unusual Case ◽  
Right Hemisphere ◽  
Inflectional Morphology ◽  
Past Participle ◽  
Derivational Morphology ◽  
The Past ◽  
The Right ◽  
First Time

It is widely documented that the left hemisphere is dominant in all complex linguistic tasks, including the processing of inflectional morphology. Both in Italian and in other languages, patients with brain damage with a selective deficit in derivational morphology have never been reported. Here we present the unusual case of two patients with very similar right-hemisphere lesions, who in the absence of aphasic disorders showed a selective inability in producing derivational morphology. Although both patients were unimpaired in producing verb infinitives, they both showed a selective deficit in producing nouns derived from verbs. This difficulty was not present in deriving nouns from other grammatical categories, such as adjectives. Interestingly, both patients mostly substituted the derived noun with the past participle of the verb. This pattern of results documents for the first time a right-hemisphere contribution in the domain of derivational morphology.

scholarly journals Objective Evaluation of Proprioceptive Perception of Single-Joint Arm Movements in Patients with Hemiparesis of Central Genesis

2020 ◽  
Vol 99 (5) ◽  
pp. 79-87
Author(s):  
O.G. Pavlova ◽  
V.Yu. Roschin ◽  
M.V. Sidorova ◽  
V.A. Selionov ◽  
E.A. Nikolaev ◽  
...  
Keyword(s):  
Brain Damage ◽  
Left Hemisphere ◽  
Right Hemisphere ◽  
Objective Evaluation ◽  
Significant Part ◽  
Recording Equipment ◽  
Eyes Closed ◽  
Flexion Extension ◽  
The Right ◽  
Wrist Joints

Aim. Objective evaluation of proprioceptive perception of single-joint movements of the paretic arm in patients with unilateral brain damage using the method developed by us. Materials and Methods. Proprioceptive perception of pronation-supination of the forearm, flexion-extension in the shoulder, elbow and wrist joints and abduction-adduction in the shoulder and wrist joints was tested in 23 patients with right-sided and 17 patients with left-sided brain damage. The subject with his eyes closed was made to perform a series of passive cyclical test movements, during which he had to copy them with active movements of the other arm. Joint angles were recorded in the test joint and the same joint ofthe other arm. The integrity of proprioceptive sensitivity was judged by the degree of similarity between “active” and “passive” movements estimated by means of objective qualitative and quantitative indicators. Results. Proprioceptive deficiency was detected in 83% of patients with lesion in the right and in 71% of patients with lesion inthe left hemisphere, while the proportion of test movements that revealed a violation of proprioceptive perception was 1.4 times higher in the right-hemisphere patients than in the left-hemisphere patients. A significant part of proprioceptive impairments, – 80% when testing movements of more distal and 29% – proximal segments of the arm, was detected by the presence of qualitative copying errors. Conclusions. The method used made it possible to identify proprioceptive deficits in more than half of patients with damage to both the right and left hemispheres. Proprioceptive perception of movements of the distal arm segment suffered more often and was more pronounced than the proximal one. A significant part of distal segment proprioception disorders manifested themselves in the form of gross qualitative copying errors, which can be detected visually during testing, even without the use of recording equipment.

Investigation of the Effect of Mode and Tempo on Emotional Responses to Music Using EEG Power Asymmetry

2013 ◽  
Vol 27 (3) ◽  
pp. 142-148 ◽  
Author(s):  
Konstantinos Trochidis ◽  
Emmanuel Bigand
Keyword(s):  
Left Hemisphere ◽  
Right Hemisphere ◽  
Emotional Responses ◽  
Interactive Effects ◽  
Eeg Activity ◽  
Musical Excerpt ◽  
Major Mode ◽  
Musical Modes ◽  
Slow Tempo ◽  
The Right

The combined interactions of mode and tempo on emotional responses to music were investigated using both self-reports and electroencephalogram (EEG) activity. A musical excerpt was performed in three different modes and tempi. Participants rated the emotional content of the resulting nine stimuli and their EEG activity was recorded. Musical modes influence the valence of emotion with major mode being evaluated happier and more serene, than minor and locrian modes. In EEG frontal activity, major mode was associated with an increased alpha activation in the left hemisphere compared to minor and locrian modes, which, in turn, induced increased activation in the right hemisphere. The tempo modulates the arousal value of emotion with faster tempi associated with stronger feeling of happiness and anger and this effect is associated in EEG with an increase of frontal activation in the left hemisphere. By contrast, slow tempo induced decreased frontal activation in the left hemisphere. Some interactive effects were found between mode and tempo: An increase of tempo modulated the emotion differently depending on the mode of the piece.

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