AI Article Synopsis
- The study aimed to investigate how different BMIs affect cognitive function in adolescents before and after experiencing mental workload using the Stroop task.
- Researchers assessed 254 adolescents categorized by BMI and measured their reading times on Stroop cards before and after applying mental workload.
- Results indicated that overweight and obese adolescents took significantly longer to read the Stroop cards, highlighting a negative impact of higher BMI on cognitive processing.
Article Abstract
Objective: To observe the differences of Stroop task among adolescents with different BMIs before and after mental workload, and try to explore the change of cognition function after mental workload in students with different degrees of obesity and the relationships between cognition function and body mass index (BMI).
Methods: A total 254 adolescents were selected by convenience sampling method and were classified into different groups according to BMI. The subjects were manipulated by mental workload with the IV edition of Wechsler Intelligence Scale for Children (WISC-IV) for 60 to 70 minutes. The minutes of time for reading card A, B and C were separately recorded before and after mental workload.
Results: The minutes spent for reading card C were significantly longer in overweight and obese groups than those in the normal bodyweight group before mental workload (P < 0.05). After mental workload, the minutes for reading cards A and B were significantly longer in the obese group than those in the normal group (P < 0.05), and with the increase of BMI Z scores, the minutes for reading three cards were significantly longer.
Conclusion: Overweight/obesity have significant effect on cognitive process reflected by Stroop task, and the higher BMI Z scores the more obvious impairment of cognitive process.
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