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Information Processing Approach01:30

Information Processing Approach

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The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is...
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Developmental Changes in Stroop Task Performance among Individuals with High-Functioning Pervasive Developmental

Ruriko Yamashita1, Yukie Iwasa1, Toshiaki Hashimoto2

  • 1Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan.

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|October 27, 2024
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Summary
This summary is machine-generated.

This study examined age-related changes in cognitive tasks for individuals with high-functioning pervasive developmental disorder (HF-PDD) and typically developing (TD) peers. Findings show HF-PDD individuals exhibit prolonged response times in specific tasks, suggesting difficulties with stereotype suppression.

Keywords:
Stroop testfrontal lobe functionhigh-functioning pervasive developmental disorderstereotype suppression

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Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Cognitive Science

Background:

  • Pervasive developmental disorders (PDD) encompass a range of neurodevelopmental conditions.
  • High-functioning PDD (HF-PDD) describes individuals with PDD who have average or above-average intelligence.
  • Understanding cognitive differences in HF-PDD is crucial for targeted interventions.

Purpose of the Study:

  • To investigate age-related performance variations on the Stroop Color and Word test in HF-PDD.
  • To compare Stroop test indices between HF-PDD and typically developing (TD) individuals across different age groups.
  • To identify specific cognitive challenges, such as stereotype suppression, in HF-PDD.

Main Methods:

  • A cohort of 125 participants (68 HF-PDD, 57 TD) aged 6-24 years was recruited.
  • The Stroop Color and Word test was administered using computer-based stimuli and voice key response recording.
  • Regression analyses were employed to assess age-associated trends and group differences.

Main Results:

  • Both HF-PDD and TD groups demonstrated age-related improvements in Stroop test performance, with optimal performance ages differing between groups.
  • While color naming and word reading showed no significant group differences, the HF-PDD group exhibited significantly longer response times on the color-word naming task.
  • Approximately 30% of HF-PDD participants displayed performance exceeding two standard deviations above the TD mean on specific Stroop tasks.

Conclusions:

  • Age-related changes in Stroop task performance were observed in both HF-PDD and TD groups, fitting a quadratic regression model.
  • The prolonged response times in the color-word naming task for the HF-PDD group suggest potential difficulties with stereotype suppression in a subset of these individuals.
  • These findings highlight specific cognitive processing differences in HF-PDD that may warrant further investigation and support.