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Behavioral preference in sequential decision-making and its association with anxiety.

Dandan Zhang1,2, Ruolei Gu3,4,5

  • 1Department of Psychology, College of Psychology and Sociology, Shenzhen University, Shenzhen, China.

Human Brain Mapping
|February 23, 2018
PubMed
Summary

Sequential decision-making involves changes in behavior and neural activity. Brain oscillations, including alpha, theta, and mu rhythms, predict future choices and are influenced by anxiety levels.

Keywords:
anxietyelectroencephalograph (EEG)gamblingindependent component analysis (ICA)sequential decision-making

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Area of Science:

  • Cognitive Neuroscience
  • Decision-Making Research

Background:

  • Sequential decision-making is crucial in daily life but understudied.
  • Previous research has not fully explored how preferences shift during these processes.
  • Understanding the neural underpinnings of evolving choices is essential.

Purpose of the Study:

  • To investigate changes in behavioral preferences during sequential decision-making.
  • To identify the neural processes associated with these dynamic choices.
  • To model the temporal dynamics of sequential decision-making in the brain.

Main Methods:

  • Modified the Balloon Analogue Risk Task to study sequential decisions.
  • Recorded electroencephalograph (EEG) signals during task performance.
  • Applied Independent Component Analysis (ICA) to analyze EEG data and identify predictive neural components.

Main Results:

  • Four EEG components (occipital alpha, frontal theta, middle frontal theta, sensorimotor mu rhythms) predicted subsequent gamble/no gamble decisions.
  • A brain model illustrating information flow between EEG oscillations was proposed.
  • Trait anxiety influenced gambling tendency and frontal theta rhythm power in specific decision steps.

Conclusions:

  • Behavioral preferences dynamically change during sequential decision-making.
  • Specific EEG oscillations play a predictive role in guiding subsequent choices.
  • Trait anxiety modulates decision-making processes and associated neural activity, highlighting emotion's role.