Intelligence, reaction times, and peripheral nerve conduction velocity

Two studies (with sample sizes of 85 and 88) are reported that investigated relationships among measures of intelligence, speed of information processing, and peripheral nerve conduction velocity (NCV). In both studies, NCV was significantly correlated with IQ scores ( rs = .42 and .48) and with rea...

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Veröffentlicht in:Intelligence (Norwood) 1992-07, Vol.16 (3), p.273-288
Hauptverfasser: Vernon, Philip A., Mori, Monica
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description Two studies (with sample sizes of 85 and 88) are reported that investigated relationships among measures of intelligence, speed of information processing, and peripheral nerve conduction velocity (NCV). In both studies, NCV was significantly correlated with IQ scores ( rs = .42 and .48) and with reaction times (RTs; rs = −.28 and −.18): Thus, faster NCV was associated with higher IQ scores and faster speed of processing. In both studies, NCV and RTs contributed significantly, in combination, to the prediction of fullscale IQ (shrunken multiple Rs = .53 and .57), but the expected pattern of causal relationships between the variables was not borne out. The results are interpreted in terms of a “neural efficiency” model of intelligence, which has recieved support from other studies of physiological correlates of human intelligence.
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source Periodicals Index Online; Applied Social Sciences Index & Abstracts (ASSIA); ScienceDirect Journals (5 years ago - present)
subjects Cognition & reasoning
Cognitive Processes
Correlation
Higher Education
Intelligence
Intelligence Quotient
Nerve Conduction Velocity
Nervous system
Predictive Measurement
Reaction Time
Social research
Undergraduate Students
title Intelligence, reaction times, and peripheral nerve conduction velocity
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