Development
How does the ability to stop automatic habits develop in kids?
Open access · cc by · source: Europe PMC
Children's ability to suppress automatic responses improves rapidly as they grow, with performance on a low-memory inhibitory task leveling off in early childhood for accuracy and in later childhood for speed.
How this study connects
Role on claims
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Inhibitory control in childhood undergoes rapid development, where accuracy rates on simple tasks level off in early childhood, while processing and execution speeds continue to mature and improve in older cohorts.
Evidence for the claim as stated.
Developmental research on Stroop-like tasks reveals that children's inhibitory control matures on two distinct timelines, with error rates stabilizing around age 5 to 6, while processing speed continues to improve significantly until later childhood.
Evidence for the claim as stated.
Cross-sectional research is fundamentally limited in its ability to establish temporal causality or track individual developmental trajectories over time.
Evidence for the claim as stated.
Cross-sectional studies cannot determine if earlier individual achievements (such as early physical motor milestones) directly influence later psychological or social development.
Evidence for the claim as stated.
Age-cohort comparisons reveal that children's ability to suppress automatic responses improves rapidly, with accuracy performance leveling off in early childhood while response speed continues to develop into later childhood.
Evidence for the claim as stated.
Study at a glance
- Design
- Cross-sectional — Same vs opposite vocal size-naming (Stroop-like big-small) across six age bands; vocal errors and RT
- N
- N=113 · Six groups from 3–4 years through young adults; Japanese as first language
- Population
- Typically developing Japanese preschoolers, schoolchildren, and university students
- Outcome
- Inhibitory error rates that plateau after ages 5–6, with opposite-vs-same RT costs persisting through ages 9–10
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Inspect source passages
How does the ability to stop automatic habits develop in kids?
These passages occur verbatim in the stored paper text. They support the points listed below; they do not verify every statement in the explanation.
20 stimuli were presented for each task condition
During the test phase, the participant was asked to respond as quickly and accurately as possible to a series of 20 stimuli (10 big circles and 10 small circles) for each task condition.
3 to 4-year olds showed significant differences in error rates between conditions
Post hoc Bonferroni tests also yielded significant differences between conditions for 3 to 4-year olds and 5 to 6-year olds ( p <0.05), but not for other age groups (7 to 8-year olds, p = 0.084; 9 to 10-year olds, p = 0.107; 11 to 12-year olds, p = 0.588; young adults, p = 1.00).
Key findings
The researchers compared performance across conditions and found that error rates significantly differed between the same and opposite conditions only for 3 to 4-year olds and 5 to 6-year olds, but not for older groups. However, analysis of correct response times showed that kids in the 7 to 8-year old and 9 to 10-year old brackets still showed significant differences between conditions. No significant differences in error rates or response times were found between the first five trials and the last five trials, indicating that performance did not deteriorate over a session.
Methodology
Researchers tested 113 typically developing people divided into six age groups, ranging from young children to young adults. Participants completed a 'same' condition and an 'opposite' condition, with each condition consisting of 20 trials. Vocal responses and correct response times were recorded to track development.
Limitations
This study is limited by its cross-sectional design, which does not track individual developmental changes over time. Also, an additional 14 participants were tested but excluded, including 9 outliers, one who failed the pretest, and 3 excluded due to recording errors. Because the sample sizes per group were relatively small, replication with larger samples is needed to confirm the exact age where performance convergence occurs.
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