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Related Experiment Videos

Calendrical savants: exceptionality and practice.

Richard Cowan1, Daniel P J Carney

  • 1Institute of Education, University of London, London WC1H0AA, UK. r.cowan@ioe.ac.uk

Cognition
|September 15, 2005
PubMed
Summary
This summary is machine-generated.

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Calendrical savants

Area of Science:

  • Cognitive Psychology
  • Neurodevelopmental Disorders

Background:

  • Calendrical savants exhibit extraordinary abilities in calculating dates.
  • The cognitive mechanisms underlying these skills, particularly the role of practice, remain incompletely understood.

Purpose of the Study:

  • To investigate the exceptional skills of calendrical savants.
  • To explore the contribution of practice in the development of calendrical calculation abilities.

Main Methods:

  • Experiment 1: Comparative analysis of four autistic calendrical savants against a mathematician with similar skills.
  • Experiment 2: Longitudinal study of a calendrical savant's progression from written to mental calculation for remote dates.

Main Results:

  • While the mathematician covered a wider range of years, some savants demonstrated superior knowledge of calendrical regularities.

Related Experiment Videos

  • The savant's response time variation for remote dates mirrored that for near dates, irrespective of calculation method (written vs. mental).

    • Conclusions:

    • The findings support the hypothesis that intensive practice is a key factor in the development of calendrical savant skills.
    • Autistic savants' specialized knowledge of calendrical rules may contribute to their remarkable date calculation abilities.