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How Good People are at Estimating their Own Performance? A Study of the Relationship between Hand Preference and Motor Performance

Indiwar Misra, Indian Institute of Technology Kharagpur, West Bengal, India. indiwarmishra{at}gmail.com

Damodar Suar

Damodar Suar, Ph.D., is a Professor at the Indian Institute of Technology Kharagpur. He is actively engaged in research in the areas of human cognition, trauma and social issues. He has authored "Psychological Aspects of Polarisation Phenomenon" and edited "Management through Interpersonal Relationships". He is associate editor of the journal Psychological Studies.

Manas K. Mandal

Manas K. Mandal is a Professor of Psychology at Indian Institute of Technology Kharagpur. Currently he is Director, Defense Institute of Psychological Research, New Delhi. His areas of interest are clinical neuropsychology and human cognition. He has widely published scientific papers in national and international journals. He has edited "Side Bias: A Neuropsychological Perspective".

This article examines the relationship between the awareness of hand preference and hand and foot performance among right-, left- and mixed-handers (n = 224). The hand preference was assessed using a handedness inventory. Hand and foot performances were measured using rapid index finger or toe tapping. A significant interaction between hand preference and the tapping rate indicated that in left-handers, left tapping was faster than right tapping and in right-handers, right tapping was faster than left tapping regardless of effector, finger or toe. The mixed-handers, however, did not show differences between left and right tapping performance. Correlations between performances were highest between hands or between feet. Also, hand performance was more strongly positively associated to foot performance in the mixed- and left-handers than right-handers. Similar inter-limb performance in mixed-handers tends to implicate inconsistent or undeveloped cerebral lateralisation. The results indicate that self-awareness of the pattern of hand use significantly relates to hand and foot performance.

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