Sex in hand

In the case of disasters or crime scenes, forensic anthropometric methods have been utilized as a reliable way to quickly confirm the identification of victims using only a few parts of the body. A total of measurement data from males and females were analyzed to investigate the suitability of detailed hand dimensions as discriminators of sex. A total of 29 variables including length, breadth, thickness, and circumference of fingers, palm, and wrist were measured. The obtained data were analyzed using descriptive statistics and t-test. The accuracy of sex indication from the hand dimensions data was found using discriminant analysis. The age effect and interaction effect according to age and sex on hand dimensions were analyzed by ANOVA.
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Effects of preferred hand and sex on the perception of tactile simultaneity

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Effects of preferred hand and sex on the perception of tactile simultaneity

The midsagittal area of the corpus callosum was measured in its entirety and in seven subdivisions in a sample of 50 brains consecutively obtained from autopsies of individuals who had neuropsychological testing before death. A item test of hand preference was used as an index of the pattern of interhemispheric functional asymmetry. Callosal size was analysed for two factors: hand preference, classified as consistent-right-hand preference CRH versus non consistent-right-hand preference, and sex. The results of variation in callosal morphology are discussed as part of a possible substrate of functional asymmetry and due to variation in axonal elimination in early brain development.
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Chubby hands or little fingers: sex differences in hand representation

Differential thresholds DLs for lifted weight were measured in one-handed consecutive and two-handed simultaneous discrimination paradigms using left- and right-handed, male and female subjects. In one-handed discrimination, no preferred-hand advantage was found for either left- or right-handed subjects. Left-handed subjects were found to perform better than right-handed subjects with both left and right hand.
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The effects of handedness, sex and the influence of hand placement in extrapersonal space on temporal information processing was investigated by measuring thresholds for perceiving the simultaneity of pairs of tactile stimuli. Simultaneity thresholds of preferred right handed and left handed university students with left hemisphere speech representation were compared using unimanual and bimanual stimulation at three hand placements midline, lateral and crossed. In unimanual conditions two fingers of one hand were stimulated single hemisphere , whereas in the bimanual conditions one finger of each hand was stimulated cross hemispheres.
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