Resting-State Theta Oscillations and Reward Sensitivity in Risk Taking

被引:3
|
作者
Azanova, Maria [1 ,2 ]
Herrojo Ruiz, Maria [3 ]
Belianin, Alexis V. [4 ,5 ]
Klucharev, Vasily [2 ]
Nikulin, Vadim V. [4 ,6 ]
机构
[1] Max Planck Inst Human Cognit & Brain Sci, Max Planck Sch Cognit, Leipzig, Germany
[2] HSE Univ, Inst Cognit Neurosci, Int Lab Social Neurobiol, Moscow, Russia
[3] Goldsmiths Univ London, Dept Psychol, London, England
[4] HSE Univ, Ctr Cognit & Decis Making, Inst Cognit Neurosci, Moscow, Russia
[5] HSE Univ, Int Coll Econ & Finance, Moscow, Russia
[6] Max Planck Inst Human Cognit & Brain Sci, Dept Neurol, Leipzig, Germany
关键词
risk taking; theta oscillations; sex differences; reward sensitivity; frontal asymmetry; spontaneous neural activity; domain-specific risk-taking scale; magnetoencephalagraphy; ANTERIOR CINGULATE CORTEX; FEEDBACK-RELATED NEGATIVITY; RIGHT PREFRONTAL CORTEX; FRONTAL-MIDLINE THETA; INDIVIDUAL-DIFFERENCES; DECISION-MAKING; PUNISHMENT SENSITIVITY; BEHAVIORAL ACTIVATION; INHIBITORY CONTROL; GENDER-DIFFERENCES;
D O I
10.3389/fnins.2021.608699
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Females demonstrate greater risk aversion than males on a variety of tasks, but the underlying neurobiological basis is still unclear. We studied how theta (4-7 Hz) oscillations at rest related to three different measures of risk taking. Thirty-five participants (15 females) completed the Bomb Risk Elicitation Task (BRET), which allowed us to measure risk taking during an economic game. The Domain-Specific Risk-Taking Scale (DOSPERT) was used to measure self-assessed risk attitudes as well as reward and punishment sensitivities. In addition, the Barratt Impulsiveness Scale (BIS11) was included to quantify impulsiveness. To obtain measures of frontal theta asymmetry and frontal theta power, we used magnetoencephalography (MEG) acquired prior to task completion, while participants were at rest. Frontal theta asymmetry correlated with average risk taking during the game but only in the female sample. By contrast, frontal theta power correlated with risk taking as well as with measures of reward and punishment sensitivity in the joint sample. Importantly, we showed that reward sensitivity mediated a correlation between risk taking and the power of theta oscillations localized to the anterior cingulate cortex. In addition, we observed significant sex differences in source- and sensor-space theta power, risk taking during the game, and reward sensitivity. Our findings suggest that sensitivity to rewards, associated with resting-state theta oscillations in the anterior cingulate cortex, is a trait that potentially contributes to sex differences in risk taking.
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页数:17
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