Experience of The Rehabilitation for Sign Language Aphasia due to The Damage of The Right Brain in A Left-handed Deaf Japanese Signer

SynopsisAbnormal patterns of cerebral hemispheric asymmetry have been inconsistently reported in association with schizophrenia. Radius of gyration (Rg) is a measure of the mean dispersion of points in a radially organized structure about that structure's centre of gravity. We developed computerized methods for estimating Rg of the magnetic resonance image (MRI) boundary between cortex and subcortex, and applied these methods to measurement of cerebral hemispheric asymmetry in 37 schizophrenics (SZs) and 30 controls (CONs). In right-handed CONs, Rg of right brain boundaries was significantly greater than Rg of left brain boundaries; in left-handed CONs, Rg of left brain boundaries was significantly greater than Rg of right brain boundaries. In right-handed males (both SZ and CON), there were significant differences in Rg between hemispheres; whereas in females (both SZ and CON) there were no such differences. Right-handed male SZs (N = 26) were distinguished by reversal of the right-handed male CON pattern of interhemispheric difference in Rg, and by global reduction in Rg of right brain boundaries. There was no evidence for significant abnormality of Rg in right-handed female SZs (N = 7). These findings suggest an important interactive effect of gender and schizophrenia on lateralized cerebral structure.

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Special section: Attachment research and psychoanalytic process. "Good vibes": The right-brain and its relevance to psychoanalysis

PsycEXTRA Dataset ◽

10.1037/e302312005-006 ◽

2000 ◽

Author(s):

Douglas Schave

Keyword(s):

Special Section ◽

Right Brain ◽

Attachment Research ◽

The Right

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Определение ведущей руки в судебно-медицинской практике с помощью стоматологического индекса КПУ

Dalʹnevostočnyj medicinskij žurnal ◽

10.35177/1994-5191-2020-2-46-48 ◽

2020 ◽

pp. 46-48

Keyword(s):

Dental Caries ◽

Forensic Medicine ◽

Left Handed ◽

Forensic Practice ◽

The World ◽

Medical Identification ◽

The Right

In current forensic medicine practice, the need for the development of new, scientiﬁcally based approaches and methods of forensic medical identiﬁcation is still very important. The number of left-handed people in the world varies from 5 to 30 %, and it can be useful in forensic practice. The possibility of establishing a dominating hand based on the intensity of dental caries (CFE - CARIES-FILLIN-EXTRACTION index) was studied. Taking into consideration the intensity of caries damage to the teeth on the right and left sides of right-handed, left-handed and ambidextras people, we oﬀered and calculated the CFE diﬀerence index: «CFE on the right – CFE on the left». Signiﬁcant diﬀerences in the CFE indexes can help to determine what hand has been predominant and it might be useful for forensic specialists.

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ANALYSIS OF THE COMPETITIVE ACTIVITIES OF THE WORLD STRONGEST BELT WRESTLERS

SCIENCE AND SPORT: current trends ◽

10.36028/2308-8826-2020-8-1-38-45 ◽

2020 ◽

Vol 8 (1) ◽

pp. 38-45

Author(s):

Mariya Sedunova ◽

Liliya Konovalova

Keyword(s):

Female Athletes ◽

Group Differences ◽

Men And Women ◽

World Championship ◽

Left Handed ◽

Competitive Activity ◽

The World ◽

The Right ◽

Competitive Activities ◽

Distinguishing Features

International potential and consequent greater competition in belt wrestling increase the significance of assessing quantitative and qualitative indicators of competitive activity of the strongest wrestlers in the world. It is important to identify the sport development trends and to search for effective ways and tools for achievement of the sport excellence. Purpose: to reveal the features of efficient competitive activities of the world leading wrestlers on the basis of analysis of group differences in technical and tactical excellence indicators. Materials and methods of research. We analyzed videos of 285 events with participation of 197 wrestlers competing at the Belt Wrestling World Championship 2019 in Kazan. We registered the following indicators of competitive activity: the total and average number of fighting techniques, including techniques executed to the right and to the left side within 4 minutes of combat; number and types of technical actions of competition winners among men and women. Research results and discussion. The paper focuses on the comparative analysis of technical and tactical skills of men and women, the winners of the Belt Wrestling World Championship. The research revealed distinguishing features of the winner’s technical toolkit including the diversity of technical and tactical actions, a balance in the knowledge of the right and left-handed techniques. At the same time, the analysis of technical and tactical actions in women wrestling shows the backlog of female athletes in these components of technical fitness.

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Revisiting Curricula for Deaf Students

10.1093/oso/9780190880545.003.0023 ◽

2018 ◽

Author(s):

Stein Erik Ohna

Keyword(s):

Sign Language ◽

Educational System ◽

School System ◽

First Language ◽

National Curriculum ◽

Educational Context ◽

Deaf Students ◽

National Policies ◽

Classroom Processes ◽

The Right

The Norwegian National Curriculum in 1997 introduced four subject curricula for deaf students as part of new legislation giving deaf students who have acquired sign language as their first language the right to instruction in the use of sign language and through the medium of sign language. A few years later, new hearing technologies contributed to substantial changes in the educational context. This situation has challenged the school system, schools, and teachers. The chapter is organized in three sections. First, the educational system and the process leading to the introduction of new legislation is presented. The second section deals with information about the use of curricula for deaf students. The last section discusses issues of students’ achievements, classroom processes, and national policies.

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Lateral Onset Asynchrony in Left-Handers

Perceptual and Motor Skills ◽

10.2466/pms.1976.43.1.255 ◽

1976 ◽

Vol 43 (1) ◽

pp. 255-259 ◽

Cited By ~ 2

Author(s):

Takeshi Hatta

Keyword(s):

Visual Field ◽

Standard Stimulus ◽

The Other ◽

Right Visual Field ◽

Left Handed ◽

The Right ◽

Onset Asynchrony

Study of matching judgment was designed to demonstrate an effect of lateral onset asynchrony in left-handed subjects, 7 males and 8 females. Japanese Hirakana letters or random forms were presented to one visual field first and to the other visual field second. 15 left-handers were requested to judge whether the successively presented stimuli were “same” or “different.” The results showed that for both types of stimuli there are no differences in accuracy of matching judgment whether the standard stimulus was presented to the right visual field first or to the left. These results indicate that the left-handed subjects may have a tendency toward hemispheric equi-potentiality for recognition of both verbal and non-verbal materials.

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Handedness affects Emotional Valence Asymmetry

Perceptual and Motor Skills ◽

10.2466/pms.1989.68.2.435 ◽

1989 ◽

Vol 68 (2) ◽

pp. 435-441 ◽

Cited By ~ 9

Author(s):

Richard A. McFarland ◽

Robert Kennison

Keyword(s):

Negative Affect ◽

Hemispheric Asymmetry ◽

Emotional Responses ◽

Emotional Valence ◽

Left Handed ◽

Two Factors ◽

Left And Right ◽

The Asymmetry ◽

The Right ◽

Cerebral Processing

Music was played monaurally to 80 right-handed and 80 left-handed subjects. Right-handers reported more positive and less negative affect if the music was to the right ear. Left-handers reported experiencing more positive and less negative affect during music to the left ear. The hand × ear interaction was significant. The valence of emotional responses to the music seems influenced by a combination of at least two factors, (1) differences between left- and right-handers in the cerebral processing of emotional valence and (2) differences in the processing of emotional valence within each handedness group depending upon which hemisphere was initially most strongly engaged by the music. These results partially corroborate and extend the findings of previous studies in which briefer stimuli were presented tachistoscopically or dichotically. It is concluded that, while there is hemispheric asymmetry in the processing of emotional valence, the direction of the asymmetry may be associated with the handedness of the subjects.

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Microsurgically generated discontinuities provoke heritable changes in cellular handedness of a ciliate, Stylonychia mytilus

Development ◽

10.1242/dev.111.2.337 ◽

1991 ◽

Vol 111 (2) ◽

pp. 337-356

Author(s):

X.B. Shi ◽

Z.I. Qiu ◽

W. He ◽

J. Frankel

Keyword(s):

Large Scale ◽

Mirror Image ◽

The Other ◽

Left Edge ◽

Left Handed ◽

Specific Manner ◽

The Right ◽

Anteroposterior Polarity ◽

Posterior Anterior ◽

Stylonychia Mytilus

Stylonychia mytilus is a dorsoventrally flattened ciliate with compound ciliary structures arranged in a specific manner on the cell surface. In mirror-image (MI) doublets of this ciliate, two nearly complete sets of ciliary structures are arrayed side-by-side, one in a normal or ‘right-handed’ (RH) arrangement, the other in a reversed or ‘left-handed’ (LH) arrangement. MI-doublets exist in two forms, one with the RH component on the right, the LH component on the left, and feeding structures near the center (‘buccal-adjoining MI-doublet’); the other with the RH component on the left, the LH component on the right, and feeding structures on the lateral edges (‘buccal-opposing MI-doublet’). We describe an operation that can generate either type of MI-doublet. This operation interchanges large anterior and posterior regions of the cell, transposing the original posterior region anteriorly (P—A) and the original anterior region posteriorly (A—P), while retaining the original anteroposterior polarity of each region. Two sets of new ciliary structures then are formed in mirror-image arrangement, with the set in the P—A region oriented normally and the set in the A—P region undergoing a reversal of polarity along its anteroposterior axis. This sometimes creates end-to-end MI forms, but more commonly produces side-by-side MI-doublets through a folding together of the P—A and A—P regions. This folding occurs because one lateral edge of the cell had been removed during the operation; if the left edge was removed, the complex folds to the left and forms a buccal-adjoining MI-doublet, whereas if the right edge was removed, the complex folds to the right and forms a buccal-opposing MI-doublet. Both types can reorganize and later divide true-to-type, although the ‘buccal-opposing’ type is by far the more stable of the two. The generation of mirror-image forms is dependent on the prior abnormal juxtaposition of regions from opposite ends of the cell, and involves a coordinated respecification of large-scale organization. We interpret this response to be a consequence of intercalation of missing intervening positional values in the zone of posterior-anterior abutment.

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Orientation and lateralized cue use in pigeons navigating a large indoor environment

Journal of Experimental Biology ◽

10.1242/jeb.205.12.1795 ◽

2002 ◽

Vol 205 (12) ◽

pp. 1795-1805 ◽

Cited By ~ 1

Author(s):

Helmut Prior ◽

Frank Lingenauber ◽

Jörg Nitschke ◽

Onur Güntürkün

Keyword(s):

Reference Frame ◽

Brain Lateralization ◽

Spatial Cues ◽

Brain Hemisphere ◽

Brain Hemispheres ◽

Left Brain ◽

Right Brain ◽

Starting Location ◽

The Right ◽

Global Reference Frame

SUMMARY The pigeon's use of different visuo-spatial cues was studied under controlled laboratory conditions that simulated analogous aspects of a homing situation. The birds first learned the route to a goal that was not visible from the starting location, but became visible as it was approached. Birds could orientate within a mainly geometric global reference frame, using prominent landmarks within their range, or by `piloting' along local cues. After learning the route, the birds were tested from familiar and unfamiliar release points, and several aspects of the available cues were varied systematically. The study explored the contribution of the left and right brain hemispheres by performing tests with the right or left eye occluded. The results show that pigeons can establish accurate bearings towards a non-visible goal by using a global reference frame only. Furthermore, there was a peak of searching activity at the location predicted by the global reference frame. Search at this location and directedness of the bearings were equally high with both right and left eye, suggesting that both brain hemispheres have the same competence level for these components of the task. A lateralization effect occurred when prominent landmarks were removed or translated. While the right brain hemisphere completely ignored such changes,the left brain hemisphere was distracted by removal of landmarks. After translation of landmarks, the left but not the right brain hemisphere allocated part of the searching activity to the site predicted by the new landmark position. The results show that a mainly geometric global visual reference frame is sufficient to determine exact bearings from familiar and unfamiliar release points. Overall, the results suggest a model of brain lateralization with a well-developed global spatial reference system in either hemisphere and an extra capacity for the processing of object features in the left brain.

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Morphological and Morphometric Study of the Supratrochlear Foramen

Journal of Morphological Sciences ◽

10.1055/s-0038-1660487 ◽

2018 ◽

Vol 35 (01) ◽

pp. 54-57

Author(s):

F.A. Silva ◽

T.S. Silva ◽

P.R.F.B. Souza ◽

R.S. Reis ◽

M.R.S. Ferreira ◽

...

Keyword(s):

Distal Humerus ◽

Distal Portion ◽

Medullary Canal ◽

Human Bone ◽

Morphometric Study ◽

Left Handed ◽

Academic Center ◽

Preoperative Procedures ◽

The Mean ◽

The Right

Introduction The supratrochlear foramen (SF) is located in the distal portion of the humerus, formed in between the coronoid fossa and the olecranon fossa. Is associated with a narrowing of the medullary canal in the distal humerus, in addition to being a phylogenetic characteristic, more common in ancient populations. The objective was to evaluate the incidence of the supratrochlear foramen, it's shape, dimensions and translucency of the septum. Materials and Methods A total of 141 humerus adults, 72 right and 69 left-handed individuals from the collection of the Human Bone of the Academic Center of Vitória-Brazil. The format was classified as oval, round, irregular and cribriform. The vertical (VD) and transversal (TD) diameter were measured and the translucency of the septum was observed. Results Of the 141 humerus, 19.8% (28) had SF 39.3% (11) on the right side and 60.7% (17) on the left side. The oval was the most recurrent, found in 39% of the cases and the translucency was identified in 78% (110) of the bones. The mean VD was 3.653 mm and 3.492 mm on the right and left sides, respectively. The mean of the TD was 4.853 mm on the right side and 5.427 mm on the left. The area averages were 19.633 ± 20.57 mm2 on the right side and 19.919 ± 19.24 mm2 on the left side. Conclusion The knowledge of SF favors the preoperative procedures of patients with fractures in the distal humerus, necessary for the surgeries in the region.

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