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The neural correlates of reaching focal points.
Neuropsychologia ( IF 2.6 ) Pub Date : 2020-02-19 , DOI: 10.1016/j.neuropsychologia.2020.107397
Avijit Chowdhury 1 , Cuizhen Liu 1 , Rongjun Yu 2
Affiliation  

In pure-coordination games where there are multiple Nash equilibria, the selection of coordinated responses is inexplicable by rational-choice theory - yet coordination is ubiquitous in daily interactions. The psychological game theory therefore evokes the idea of focal-points: some equilibria being chosen due to its salience, as well as through predicting (i.e., mentalizing) other's response. Previous work has been limited to investigating how structural atrophy relates to deficits in coordination, or how brain activations differ between intuitive and deliberated coordination. In this study, we investigated how the strategy of coordination is reflected in the brain, compared to when no coordination is required. Using functional near-infrared spectroscopy (fNIRS), we examined the neural correlates of deriving a response to a category where participants had to either answer freely (i.e., a survey) or try to match their response with another participant (i.e., coordinate). We found that the coordination trials elicited significantly larger changes in oxyhemoglobin [HbO] concentration than survey trials in frontopolar and lateral prefrontal cortex (PFC). Individual differences in behavioral focal index was significantly correlated with [HbO] concentration in lateral PFC. Granger Causality (GC) analysis revealed greater effective connectivity from frontopolar to lateral PFC, and less GC from lateral PFC to frontopolar in the coordination condition. Our findings highlight the crucial role of frontopolar and lateral PFC in human coordination.

中文翻译:

到达焦点的神经关联。

在具有多个纳什均衡的纯协调游戏中,理性选择理论无法解释协调反应的选择,但是协调在日常交互中无处不在。因此,心理博弈理论引起了人们关注焦点的观点:由于其显着性以及通过预测(即心理化)他人的反应而选择了某种均衡。以前的工作仅限于研究结构性萎缩如何与协调不足相关,或者在直观协调与故意协调之间大脑活动如何不同。在这项研究中,我们调查了与不需要协调时相比,协调策略如何在大脑中反映出来。使用功能性近红外光谱(fNIRS),我们研究了得出对某个类别的响应的神经相关性,在该类别中,参与者必须自由回答(即调查),或尝试使他们的回答与其他参与者相匹配(即协调)。我们发现,协调试验引起的氧合血红蛋白[HbO]浓度变化明显大于额极和外侧前额叶皮层(PFC)的调查试验。行为焦点指数的个体差异与外侧PFC中的[HbO]浓度显着相关。Granger因果关系(GC)分析显示,在协调条件下,从额极到侧面PFC的有效连通性更高,而从侧面PFC到额极的GC较少。我们的发现强调了前极和侧面PFC在人类协调中的关键作用。一项调查)或尝试使他们的回答与其他参与者相匹配(即协调)。我们发现,协调试验引起的氧合血红蛋白[HbO]浓度变化明显大于额极和外侧前额叶皮层(PFC)的调查试验。行为焦点指数的个体差异与外侧PFC中的[HbO]浓度显着相关。Granger因果关系(GC)分析显示,在协调条件下,从额极到侧面PFC的有效连通性更高,而从侧面PFC到额极的GC较少。我们的发现强调了前极和侧面PFC在人类协调中的关键作用。一项调查)或尝试使他们的回答与其他参与者相匹配(即协调)。我们发现,与额额极和额前额叶皮层(PFC)的调查试验相比,协调试验引起的氧合血红蛋白[HbO]浓度变化明显更大。行为焦点指数的个体差异与外侧PFC中的[HbO]浓度显着相关。Granger因果关系(GC)分析显示,在协调状态下,从额极到侧面PFC的有效连通性更高,而从额头PFC到额极的GC较少。我们的发现强调了前极和侧面PFC在人类协调中的关键作用。我们发现,与额额极和额前额叶皮层(PFC)的调查试验相比,协调试验引起的氧合血红蛋白[HbO]浓度变化明显更大。行为焦点指数的个体差异与外侧PFC中的[HbO]浓度显着相关。Granger因果关系(GC)分析显示,在协调状态下,从额极到侧面PFC的有效连通性更高,而从额头PFC到额极的GC较少。我们的发现强调了前极和侧面PFC在人类协调中的关键作用。我们发现,协调试验引起的氧合血红蛋白[HbO]浓度变化明显大于额极和外侧前额叶皮层(PFC)的调查试验。行为焦点指数的个体差异与外侧PFC中的[HbO]浓度显着相关。Granger因果关系(GC)分析显示,在协调状态下,从额极到侧面PFC的有效连通性更高,而从额头PFC到额极的GC较少。我们的发现强调了前极和侧面PFC在人类协调中的关键作用。在协调条件下,从侧面PFC到额极的GC更少。我们的发现强调了前极和侧面PFC在人类协调中的关键作用。在协调条件下,从侧面PFC到额极的GC更少。我们的发现强调了前极和侧面PFC在人类协调中的关键作用。
更新日期:2020-02-20
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