I am attempting to write a paper on the relationship between left-handedness and psychopathology, including PTSD, bipolar disorder and schizophrenia.
Hauser, P., Pollock, B., Finkelberg, F., McGrail, S., Voineskos, G., Seeman, M.V.: On sinistrality and sex differences in schizophrenia. (Letter) Am. J. Psychiatry. 142:1228 (1985). doi: 10.1176/ajp.142.10.1228b
Handedness in schizophrenia: a quantitative review of evidence
M Dragovic, G Hammond
Genome-wide association study identifies 48 common genetic variants associated with handedness.
GC Partida, JY Tung, N Eriksson, E Albrecht, F Aliev
The neurophysiological correlates of handedness: Insights from the lateralized readiness potential
J Schmitz, J Packheiser, T Birnkraut, NA Hinz… - Behavioural brain …, 2019
Structural and functional alterations in the brain gray matter among first-degree relatives of schizophrenia patients: A multimodal meta-analysis of fMRI and VBM …
AIL Saarinen, S Huhtaniska, J Pudas, L Björnholm… - Schizophrenia …, 2020
Schizophrenia and left-handedness.......... . I have not seen many studies on this relationship. However, I have been thinking, in fact, keeping an eye on this since long time. And my opinion is that those who are strictly left-handed carry a very high risk for developing schizophrenia, PSTD or stroke or other kind of neurological/ neuropsychiatric complications. But not all people with a neurological/neuropsychiatric complication will show left-handedness.
Sommer, I., Aleman, A., Ramsey, N., Bouma, A., & Kahn, R. (2001). Handedness, language lateralisation and anatomical asymmetry in schizophrenia: meta-analysis. The British Journal of Psychiatry, 178(4), 344-351.
Chicago
I have read a publication on such however the evidence is inconclusive if there is any corelation.
Could left-handedness in schizophrenic patients be indirectly caused by reductions in left superior temporal lobe?
I have read several papers demonstrating a reduced asymmetry in language and auditory areas in schizophrenic patients. (reductions in left planum temporale and Herschel's gyrus and increases in right homologues)
Additionally left-handers also show a reduced asymmetry in language areas, compared to controls.
Do you think a line can be drawn between those two observations?
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