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Author (up) Vasquez-Pinto, S.; Morales-Bader, D.; Cox, R.F.A.; Munoz-Rubke, F.; Castillo, R.D. doi  openurl
  Title The nonlinearity of pupil diameter fluctuations in an insight task as criteria for detecting children who solve the problem from those who do not Type
  Year 2023 Publication Frontiers in Psychology Abbreviated Journal Front. Psychol.  
  Volume 14 Issue Pages 1129355  
  Keywords insight problem solving; entropy; fractal scaling; self-organization; pupil diameter fluctuations; 8-coin task  
  Abstract Insights, characterized by sudden discoveries following unsuccessful problem-solving attempts, are fascinating phenomena. Dynamic systems perspectives argue that insight arises from self-organizing perceptual and motor processes. Entropy and fractal scaling are potential markers for emerging new and effective solutions. This study investigated whether specific features associated with self-organization in dynamical systems can distinguish between individuals who succeed and those who fail in solving insight tasks. To achieve this, we analyzed pupillary diameter fluctuations of children aged 6 to 12 during the 8-coin task, a well-established insight task. The participants were divided into two groups: successful (n = 24) and unsuccessful (n = 43) task completion. Entropy, determinism, recurrence ratio, and the & beta; scaling exponent were estimated using Recurrence Quantification and Power Spectrum Density analyses. The results indicated that the solver group exhibited more significant uncertainty and lower predictability in pupillary diameter fluctuations before finding the solution. Recurrence Quantification Analysis revealed changes that went unnoticed by mean and standard deviation measures. However, the & beta; scaling exponent did not differentiate between the two groups. These findings suggest that entropy and determinism in pupillary diameter fluctuations can identify early differences in problem-solving success. Further research is needed to determine the exclusive role of perceptual and motor activity in generating insights and investigate these results' generalizability to other tasks and populations.  
  Corporate Author Thesis  
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  ISSN 1664-1078 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:001023703700001 Approved  
  Call Number UAI @ alexi.delcanto @ Serial 1847  
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