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Automatic and effortful processing after severe closed head injury.

H S Levin1, F C Goldstein, W M High

  • 1Division of Neurosurgery, University of Texas Medical Branch, Galveston 77550.

Brain and Cognition
|June 1, 1988
PubMed
Summary
This summary is machine-generated.

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Severe closed head injury (CHI) impairs both automatic and effortful cognitive tasks. This suggests that even seemingly simple cognitive functions require more effort after CHI.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Rehabilitation Medicine

Background:

  • Distinguishing between automatic and effortful cognitive processes is crucial for understanding cognitive deficits.
  • Severe closed head injury (CHI) can lead to widespread cognitive impairments, but the specific nature of these deficits remains an area of active research.

Purpose of the Study:

  • To investigate the automatic versus effortful cognitive processing distinction in individuals with severe closed head injury (CHI).
  • To determine if tasks typically considered automatic are also affected by CHI.

Main Methods:

  • Administered free recall (effortful task) and frequency of occurrence judgments (automatic task) to CHI patients and healthy controls.
  • Experiment 1: Compared performance on free recall and relative frequency judgments.

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  • Experiment 2: Assessed performance on absolute frequency estimates.

    • Main Results:

    • Both free recall and judgment of relative frequency of occurrence were significantly impaired in CHI patients compared to controls.
    • Absolute estimates of frequency were also impaired in CHI patients.
    • Findings indicate that CHI affects both effortful and automatic cognitive processes.

    Conclusions:

    • Severe CHI impacts a broad range of cognitive functions, including those presumed to be automatic.
    • Cognitive tasks that are typically effortless for unimpaired individuals may necessitate effortful strategies after severe CHI.
    • These findings have implications for cognitive rehabilitation strategies following traumatic brain injury.