Display Settings:


Send to:

Choose Destination
See comment in PubMed Commons below
Neuropsychology. 2005 Jan;19(1):88-96.

Inconsistency in reaction time across the life span.

Author information

  • 1Department of Psychology, University of Victoria, Victoria, BC, Canada. benjy@uvic.ca


Inconsistency in latency across trials of 2-choice reaction time data was analyzed in 273 participants ranging in age from 6 to 81 years. A U-shaped curve defined the relationship between age and inconsistency, with increases in age associated with lower inconsistency throughout childhood and higher inconsistency throughout adulthood. Differences in inconsistency were independent of practice, fatigue, and age-related differences in mean level of performance. Evidence for general and specific variability-producing processes was found in those aged less than 21 years, whereas only a specific process, such as attentional blocks, was evident for those 21 years and older. The findings highlight the importance of considering moment-to-moment changes in performance in psychological research.

2005 APA

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Icon for American Psychological Association
    Loading ...
    Write to the Help Desk