engleski

Handedness in schizophrenia: a meta-analysis

This work evaluates evidence of various anomalous handedness subtypes in schizophrenia patients published during the last three decades. Using meta-analsys we examined over 40 studies with reported prevalence data on various handedness subtypes in a schizophrenia population. Combined odds ratios for the three common handedness subtypes (left, mixed, and right) were separately calculated. Each of the three atypical hand dominance patterns (left-, mixed-, and non-right handedness) were significantly greater in schizophrenia patients than in control subjects. The results also showed that the leftward shift in handedness distribution is not entirely due to an increase in mixed-handedness alone. An increase of exclusive left-handedness is discordant with the assertion that the handedness shift in schizophrenia patients is due to a diffuse and bilateral hemispheric insult.

schizophrenia; handedness; meta-analysis; prevalence

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