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Related Experiment Videos

Automatic process development following severe closed head injury

M Schmitter-Edgecombe1, W A Rogers

  • 1Department of Psychology, Washington State University, Pullman 99164-4820, USA. schmitter-e@wsu.edu

Neuropsychology
|April 1, 1997
PubMed
Summary

Severe traumatic brain injury can slow the development of automatic cognitive processes. However, individuals with closed head injury (CHI) can still learn and utilize these automatic processes over time.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Rehabilitation Science

Background:

  • Traumatic brain injury (TBI), particularly closed head injury (CHI), can lead to persistent cognitive deficits.
  • Understanding the impact of CHI on the development and utilization of automatic cognitive processes is crucial for effective rehabilitation.

Purpose of the Study:

  • To investigate automatic process development in individuals with severe closed head injury (CHI).
  • To compare the development of automaticity in semantic-category memory search tasks between CHI participants and controls.

Main Methods:

  • Ten severe CHI participants (>1 year postinjury) and 10 matched controls performed consistent mapping (CM) and varied mapping (VM) semantic-category memory search tasks.
  • Performance was assessed over 1,800 trials to evaluate response times and memory search rates.

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Main Results:

  • In varied mapping (VM) tasks, CHI participants showed slower response times and memory search rates compared to controls.
  • In consistent mapping (CM) tasks, both groups developed automatic processes, but CHI participants required more practice to achieve automatization.
  • CHI participants demonstrated slower acquisition of automaticity but could eventually utilize automatic processes.

Conclusions:

  • Closed head injury (CHI) can impair the speed of automatic process development in memory-based tasks.
  • Despite slower automatization, individuals with CHI can acquire and effectively use automatic cognitive processes with sufficient practice.
  • These findings have implications for designing cognitive rehabilitation strategies for TBI survivors.