Auditory inspection time: on the importance of selecting the appropriate sensory continuum

Author(s): Bjorkman, C., Haag, K., Juslin, P.

Journal/Book: Pers Indiv Differ. 1998; 25: The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. Pergamon-Elsevier Science Ltd. 627-634.

Abstract: Auditory Inspection Time (AIT) is an index of mental speed which correlates moderately with measures of intelligence. This study shows that a loudness version (APT-L) of an AIT task correlated higher with Raven's Advanced Progressive Matrices (RAPM) than a pitch version (AIT-P). When pitch discrimination ability was partialled out, the correlation between AIT-P and RAPM dropped to 0, while the correlation between AIT-L and RAPM was largely unaffected. The overall pattern of correlations between AIT-P, AIT-L, musical ability, loudness discrimination ability, pitch discrimination ability, and RAPM suggests that AIT-L provides a purer index of mental speed, whereas AIT-P is strongly affected by pitch discrimination ability and musical ability. The results also suggest that the proposed association between sensory discrimination and intelligence might be restricted to the pitch continuum.

Note: Article Olsson H, Uppsala Univ, Dept Psychol, Box 1225, SE-75142 Uppsala, SWEDEN

Keyword(s): auditory inspection time; intelligence; mental speed; pitch discrimination; loudness discrimination; INTELLIGENCE; DISCRIMINATION; SPEED

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