Cerebral Lateralization and Specialization in Human Central Nervous System

Nass, Ruth; Gazzaniga, Michael S.

doi:10.1002/cphy.cp010518

Cited by 28 publications

(23 citation statements)

References 609 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This in turn may augment some functions subserved by the right hemisphere, among them spatial abilities (Rossi & Zani, 1986;Nass & Gazzaniga, 1987). In addition Geschwind and Galaburda (1987) suggested that left-handers may have higher overall skill on those tasks which require use of both hands given a higher rate of bilateral representation of axial motor control.…”

Section: The ((Innate Superiority" Hypothesismentioning

confidence: 97%

Motoric Dominance and Sporting Excellence: Training versus Heredity

Grouios

2004

Percept Mot Skills

View full text Add to dashboard Cite

In the past two decades, laterality in sports has become clearly established. In particular, the concept of motoric dominance in sports has been a fertile area for laterality research. The literature is consistent with the view that in certain sporting skills, sporting competitors with specific motoric-dominance patterns enjoy an advantage over other competitors and are overrepresented in some sports. Two theoretical interpretations have been offered to explain this imbalance of motoric-dominance distribution among sporting individuals: hypotheses of "innate superiority" and "strategic advantage." This paper presents an overview the two hypotheses, along with relevant work so far reported and identifies directions for further empirical research. The theoretical and practical implications of research on laterality in human motor performance are discussed.

show abstract

Section: The ((Innate Superiority" Hypothesismentioning

confidence: 97%

Motoric Dominance and Sporting Excellence: Training versus Heredity

Grouios

2004

Percept Mot Skills

View full text Add to dashboard Cite

show abstract

“…While this review deals with the evidence concerning structural asymmetries that have been revealed by neuroimaging, in normal individuals and in those with schizophrenia, the data must clearly be placed in the broader context of asymmetries discovered from other sources, including anatomy, paleontology, and biochemistry. We would also stress at the outset that the unbridled enthusiasm of the 1970s for unequivocal differentiation of hemispheric structure and function has given way to an appreciation of the fundamental reciprocity between the hemispheres (Gruzelier 1981;Nass and Gazzaniga 1989;Efron 1990). …”

mentioning

confidence: 99%

Structural Asymmetries of the Human Brain and Their Disturbance in Schizophrenia

Petty

1999

Schizophrenia Bulletin

110

View full text Add to dashboard Cite

Asymmetries of the brain have been known about for at least a century, but they have been explored in detail only relatively recently. It has become clear that, although different asymmetries are common throughout the animal kingdom, they are most marked in the human brain. Disturbances in asymmetry are particularly striking in patients with schizophrenia and perhaps all psychotic illnesses, and may provide the neurological substrate for the etiology and clinical manifestations of the illness.

show abstract

“…When demanding pronounced use of a particular upper limb due to the competitive characteristics of a given athletic event, the biased usage may influence the formation of the dominant hand. It is hypothesized that lefthanded people have superior functions in physical exercise, attention, and special functions because of a more developed right hemisphere (Geschwind, 1984;Geschwind and Galaburda, 1985;Nass and Gazzaniga, 1987). Many studies (Annett, 1985;Azemar et al, 1983;Wood and Aggleton, 1989) have examined the superiority of left-handed tennis players based on the above hypothesis and concluded that they are superior in recognition, visio-spatial, and visio-gross motor tasks.…”

Section: Discussionmentioning

confidence: 99%

The Influence of Gender, Athletic Events, and Athletic Experience on the Subjective Dominant Hand and the Determination of the Dominant Hand Based on the Laterality Quotient (LQ) and the Validity of the LQ

Demura

Tada

Matsuzawa³

et al. 2006

J Physiol Anthropol

View full text Add to dashboard Cite

This study aimed to reveal the influence of gender, athletic events and athletic experience on the subjective dominant hand and the dominant hand based on the laterality quotient (LQ). It also aimed to examine the validity of the Edinburgh Inventory (Oldfield, 1971). Males and females (nϭ3,726) living in 7 prefectures in Japan (age: 16-45 yrs) participated in this survey. Analysis was performed on 3,557 separate datasets with high reliability. The reliability of the survey was examined using a test-retest method consisting of 100 people selected randomly from all participants. All participants provided the same answers for each question. The influence of gender, event and experience was examined for the subjective and LQ-based dominant hands. In addition, concordance rates of the subjective dominant hand and the LQbased dominant hand and both dominant hands were examined. Differences of concordance rates between hands used in the 10 movement questions of the Inventory and the subjective dominant hand were tested using the c 2 test. The frequency differences among items were tested using Ryan's method (multiple comparisons). Significant gender differences were found between rates of the LQ-based dominant hand (males: 94.4%; females: 96.6%) and the subjective dominant hand (males: 91.6%; females: 94.0%), but the degree was only 2.0-4.0%. Insignificant differences were found among athletic events, two groups of different athletic experience, and gender according to each athletic event. The subjective dominant hand almost always agreed with the LQ-based dominant hand (complete concordance rateϭ0.96, kϭ0.67). Of the 10 question items, inexperienced answers were found only in the item "Knife (without fork)". The "Toothbrush", "Broom (upper hand)", and "Opening box (lid)" items had significantly lower correspondence with the subjective dominant hand (79.7-87.0%) than the other items (92.1-95.7%).In conclusion, athletic experience appears to have little influence on handedness, although there is a slight gender difference. The subjective dominant hand almost always agrees with the dominant hand based on the Inventory. A more efficient handedness inventory may be constructed by excluding the above 4 items.

show abstract

Cerebral Lateralization and Specialization in Human Central Nervous System

Cited by 28 publications

References 609 publications

Motoric Dominance and Sporting Excellence: Training versus Heredity

Motoric Dominance and Sporting Excellence: Training versus Heredity

Structural Asymmetries of the Human Brain and Their Disturbance in Schizophrenia

The Influence of Gender, Athletic Events, and Athletic Experience on the Subjective Dominant Hand and the Determination of the Dominant Hand Based on the Laterality Quotient (LQ) and the Validity of the LQ

Contact Info

Product

Resources

About