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Martins E Silva DC, Marinho V, Teixeira S, Teles G, Marques J, Escórcio A, Fernandes T, Freitas AC, Nunes M, Ayres M, Ayres C, Marques JB, Cagy M, Gupta DS, Bastos VH. Non-immersive 3D virtual stimulus alter the time production task performance and increase the EEG theta power in dorsolateral prefrontal cortex. Int J Neurosci 2020; 132:563-573. [PMID: 32962509 DOI: 10.1080/00207454.2020.1826945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
AIM The study investigated the cortical activity changes and time production task performance induced by changes in motion speed of a non-immersive 3D virtual stimulus. MATERIAL AND METHODS Twenty-one individuals were participated in the crossover study with the visual-time reproduction task under three-speed conditions: original, slow and fast virtual stimulus. In addition, the electroencephalographic analysis of the theta band power in the dorsolateral prefrontal cortex was done simultaneously with time production task execution. RESULTS The results demonstrated that in the slow speed condition, there is an increase in the error in the time production task after virtual reality (p < 0.05). There is also increased EEG theta power in the right dorsolateral prefrontal cortex in all speed conditions (p < 0.05). CONCLUSIONS We propose that the modulations of speed of virtual stimulus may underlie the accumulation of temporal pulses, which could be responsible for changes in the performance of the production task of the time intervals and a substantial increase in right dorsolateral prefrontal cortex activity related to attention and memory, acting in cognitive domains of supraseconds.
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Affiliation(s)
| | - Victor Marinho
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil.,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Silmar Teixeira
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil.,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Gabriela Teles
- Brain Mapping and Functionality, Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil
| | - João Marques
- Brain Mapping and Functionality, Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil
| | - Anderson Escórcio
- Brain Mapping and Functionality, Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil
| | - Thayaná Fernandes
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil
| | - Ana Cláudia Freitas
- Brain Mapping and Functionality, Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil
| | - Monara Nunes
- Brain Mapping and Functionality, Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil.,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Marcos Ayres
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil.,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Carla Ayres
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil
| | - Juliana Bittencourt Marques
- Laboratory of Neurophysiology and Neuropsychology of Attention, Veiga de Almeida University, Cabo Frio, Brazil
| | - Maurício Cagy
- Masters and PhD Program in Biomedical Engineering, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Daya S Gupta
- Department of Biology, Camden County College, Blackwood, NJ, USA
| | - Victor Hugo Bastos
- Brain Mapping and Functionality, Laboratory, Federal University of Delta do Parnaíba, Parnaíba, Brazil.,The Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
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Okamura Y, Ura M. I am physically and personality-wise warmer when wearing round eyeglasses: Shape priming influences personality judgments and estimated temperature. PSYCHOLOGICAL THOUGHT 2019. [DOI: 10.5964/psyct.v12i2.361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Shapes are considered to be related to different personality traits, and particularly, in terms of metaphorical associations, the round shape has been related to the warmth trait, and the square shape to the competence trait. The present study used a pre-post design to replicate these associations. Moreover, it was investigated whether round shapes enhanced the estimation of physical warmth as suggested by contemporary debates on cross-modal correspondences. The results indicated that the round shape increased the perception of warmth (p = .004) and the square shape enhanced the perception of competence (p = .025), which confirmed round-warm and square-competent associations. Furthermore, estimates of the room temperature were higher in the round condition, compared to the square condition (p = .023). The theoretical implications of these findings and directions for further research are discussed.
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Wang M, Li J, Li D, Zhu C. Anodal tDCS Over the Right Temporoparietal Junction Lowers Overbidding in Contests. Front Neurosci 2019; 13:528. [PMID: 31244591 PMCID: PMC6580155 DOI: 10.3389/fnins.2019.00528] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 05/07/2019] [Indexed: 11/30/2022] Open
Abstract
Overbidding, which means bidding over the Nash equilibrium, is commonly observed in competitive social interactions, such as a contest or auction. Recent neuroscience studies show that the right temporoparietal junction (rTPJ) is related to overbidding and associated with inferring the intentions of others during competitive interactions. The present study investigates the neural underpinnings of overbidding and how the rTPJ impacts bidding behavior by using tDCS to modulate the activation of the rTPJ. Participants completed a two-person proportional prize contest, in which overbidding was frequently observed and each participant's share of the prize was equal to the individual's expenditure divided by the aggregated expenditure. We observed a significant tDCS effect, i.e., participants' average expenditure and overbidding rate were significantly reduced in the anodal stimulation compared with the cathodal and sham stimulation. Possible explanations include that enhanced activity in the rTPJ via the anodal stimulation increased the accuracy of a participant's inference of the strategies of others, or a participant's concern for others, and thus helped the participant bid optimally. Our findings provide evidence supporting that the activation of the rTPJ in contests affects overbidding and bidding strategy, and further confirm that the rTPJ is involved in the inference of mental states in a competition context.
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Affiliation(s)
- Minda Wang
- School of Economics and Management, Southeast University, Nanjing, China.,Reinhard Selten Laboratory, China Academy of Corporate Governance, Nankai University, Tianjin, China
| | - Jianbiao Li
- Reinhard Selten Laboratory, China Academy of Corporate Governance, Nankai University, Tianjin, China.,School of Economics, Shandong University, Jinan, China.,Department of Economics and Management, Binhai College, Nankai University, Tianjin, China
| | - Dahui Li
- Labovitz School of Business & Economics, University of Minnesota Duluth, Duluth, MN, United States
| | - Chengkang Zhu
- Reinhard Selten Laboratory, China Academy of Corporate Governance, Nankai University, Tianjin, China
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Gao M, Yang X, Shi J, Lin Y, Chen S. Does Gender Make a Difference in Deception? The Effect of Transcranial Direct Current Stimulation Over Dorsolateral Prefrontal Cortex. Front Psychol 2018; 9:1321. [PMID: 30177894 PMCID: PMC6109782 DOI: 10.3389/fpsyg.2018.01321] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 07/09/2018] [Indexed: 11/13/2022] Open
Abstract
Neuroimaging studies have indicated a correlation between dorsolateral prefrontal cortex (DLPFC) activity and deceptive behavior. We applied a transcranial direct current stimulation (tDCS) device to modulate the activity of subjects’ DLPFCs. Causal evidence of the neural mechanism of deception was obtained. We used a between-subject design in a signaling framework of deception, in which only the sender knew the associated payoffs of two options. The sender could freely choose to convey the truth or not, knowing that the receiver would never know the actual payment information. We found that males were more honest than females in the sham stimulation treatment, while such gender difference disappeared in the right anodal/left cathodal stimulation treatment, because modulating the activity of the DLPFC using right anodal/left cathodal tDCS only significantly decreased female subjects’ deception.
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Affiliation(s)
- Mei Gao
- College of Economics, Zhejiang University, Hangzhou, China
| | - Xiaolan Yang
- School of Business and Management, Shanghai International Studies University, Shanghai, China.,Academy of Financial Research, Zhejiang University, Hangzhou, China
| | - Jinchuan Shi
- Academy of Financial Research, Zhejiang University, Hangzhou, China
| | - Yiyang Lin
- College of Economics, Zhejiang University, Hangzhou, China
| | - Shu Chen
- College of Economics, Zhejiang University, Hangzhou, China.,Interdisciplinary Center for Social Sciences, Zhejiang University, Hangzhou, China
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Li J, Liu X, Yin X, Li S, Wang P, Niu X, Zhu C. Transcranial Direct Current Stimulation of the Right Lateral Prefrontal Cortex Changes a priori Normative Beliefs in Voluntary Cooperation. Front Neurosci 2018; 12:606. [PMID: 30233294 PMCID: PMC6127276 DOI: 10.3389/fnins.2018.00606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 08/10/2018] [Indexed: 11/30/2022] Open
Abstract
A priori normative beliefs, the precondition of social norm compliance that reflects culture and values, are considered unique to human social behavior. Previous studies related to the ultimatum game revealed that right lateral prefrontal cortex (rLPFC) has no stimulation effects on normative beliefs. However, no research has focused on the effects of a priori belief on the rLPFC in voluntary cooperation attached to the public good (PG) game. In this study, we used a linear asymmetric PG to confirm the influence of the rLPFC on a priori normative beliefs without threats of external punishment through transcranial direct current stimulation (tDCS). Participants engaged via computer terminals in groups of four (i.e., two high-endowment players with 35G$ and two low-endowment players with 23G$). They were anonymous and had no communication during the entire process. They were randomly assigned to receive 15 min of either anodal, cathodal, or sham stimulation and then asked to answer questions concerning a priori normative beliefs (norm.belief and pg.belief). Results suggested that anodal/cathodal tDCS significantly (P < 0.001) shifted the participants' a priori normative beliefs in opposite directions compared to the shift in the sham group. In addition, different identities exhibited varying degrees of change (28.80-54.43%). These outcomes provide neural evidence of the rLPFC mechanism's effect on the normative beliefs in voluntary cooperation based on the PG framework.
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Affiliation(s)
- Jianbiao Li
- China Academy of Corporate Governance, Reinhard Selten Laboratory, Business School, Nankai University, Tianjin, China
- Department of Economics and Management, Nankai University Binhai College, Tianjin, China
| | - Xiaoli Liu
- China Academy of Corporate Governance, Reinhard Selten Laboratory, Business School, Nankai University, Tianjin, China
| | - Xile Yin
- School of Business Administration, Zhejiang Gongshang University, Hangzhou, China
| | - Shuaiqi Li
- China Academy of Corporate Governance, Reinhard Selten Laboratory, Business School, Nankai University, Tianjin, China
| | - Pengcheng Wang
- Business School, Tianjin University of Finance and Economics, Tianjin, China
| | - Xiaofei Niu
- China Academy of Corporate Governance, Reinhard Selten Laboratory, Business School, Nankai University, Tianjin, China
| | - Chengkang Zhu
- China Academy of Corporate Governance, Reinhard Selten Laboratory, Business School, Nankai University, Tianjin, China
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6
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Li J, Liu X, Yin X, Li S, Wang G, Niu X, Zhu C. Transcranial Direct Current Stimulation Altered Voluntary Cooperative Norms Compliance Under Equal Decision-Making Power. Front Hum Neurosci 2018; 12:265. [PMID: 30018541 PMCID: PMC6037845 DOI: 10.3389/fnhum.2018.00265] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 06/08/2018] [Indexed: 11/19/2022] Open
Abstract
Social norms play an essential role in human interactions and the development of the evolution of human history. Extensive studies corroborate that compliance with social norms typically requires a punishment threat as almost always specific individuals have self-interests that tempt them to violate the norm. Neural imaging studies demonstrate that lateral orbitofrontal cortex (LOFC) and right dorsolateral prefrontal cortex (rDLPFC) are activated when individuals decide to increase social norm compliance when punishment is possible. Moreover, rDLPFC is affirmed to be involved in social norm compliance with or without external punishment threats in a series of transcranial direct current stimulation (tDCS) research. However, these neuroscience studies are based on the ultimatum game (UG) in which the decision-making power between the proposer and the responder is unequal, and no studies support the causal relationship between rDLPFC and voluntary cooperative norms compliance among the equal decision-making power of subjects. Whether modulating the excitability of rDLPFC, which plays a role in norm compliance, alters the extent of compliance with voluntary cooperative norms under equal decision-making power and how norms from different types with asymmetric endowment influence compliance remain unknown. The present study aimed to provide evidence of a direct link between the neural and behavioral results through the application of tDCS over rDLPFC on compliance with voluntary cooperative norms under equal decision-making power. Results verified that activating rDLPFC altered voluntary cooperative norms compliance of all our participants and significant effect over different initial endowments was observed. The role of norm.own and norm.other in compliance was changed in the anodal treatment. Findings validate that enhancing the excitability of the rDLPFC using tDCS leads to high compliance in voluntary cooperation and this effect is specific to equal decision-making power rather than unequal decision-making power.
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Affiliation(s)
- Jianbiao Li
- China Academy of Corporate Governance, Reinhard Selten Laboratory, Business School, Nankai University, Tianjin, China
- Nankai University Binhai College, Tianjin, China
| | - Xiaoli Liu
- China Academy of Corporate Governance, Reinhard Selten Laboratory, Business School, Nankai University, Tianjin, China
| | - Xile Yin
- China Academy of Corporate Governance, Reinhard Selten Laboratory, Business School, Nankai University, Tianjin, China
| | - Shuaiqi Li
- China Academy of Corporate Governance, Reinhard Selten Laboratory, Business School, Nankai University, Tianjin, China
| | - Guangrong Wang
- Neural Decision Science Laboratory, Weifang University, Weifang, China
| | - Xiaofei Niu
- China Academy of Corporate Governance, Reinhard Selten Laboratory, Business School, Nankai University, Tianjin, China
| | - Chengkang Zhu
- China Academy of Corporate Governance, Reinhard Selten Laboratory, Business School, Nankai University, Tianjin, China
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Li J, Li S, Wang P, Liu X, Zhu C, Niu X, Wang G, Yin X. Fourth-Party Evaluation of Third-Party Pro-social Help and Punishment: An ERP Study. Front Psychol 2018; 9:932. [PMID: 29946280 PMCID: PMC6005840 DOI: 10.3389/fpsyg.2018.00932] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 05/22/2018] [Indexed: 11/22/2022] Open
Abstract
Pro-social behaviors have been adequately studied by neuroscientists. However, few neural studies have focused on the social evaluation of pro-social behaviors, and none has compared the neural correlates of different pro-social decision evaluations. By fourth-party evaluation of third-party punishment/help dictator game paradigm, we explored the third-party pro-social behaviors and derived feedback-related negativity (FRN) from the electroencephalogram. Different from previous event-related potentials (ERP) studies, we simultaneously focused on two different third-party pro-social behaviors, which were called third-party help and third-party punishment. For the first time, we compared the different neural processes of fourth-party evaluation on third-party help and punishment. Behavioral results showed that fourth-party bystanders appreciated the help behavior of the third party even more than the punishment behavior. ERP results revealed that fourth-party bystanders’ FRN amplitudes were modulated by the third-party behaviors. Under the assignment condition (70:30) with help/punishment magnitude 45 and (90:10) with magnitude 80, the third-party help elicited a larger FRN than third-party punishment; whereas under the condition (90:10) with help/punishment magnitude 45, the difference between FRN amplitudes disappeared. These results indicated that fourth-party bystanders ultimately agreed more with helpful third parties; however, after they witnessed the norm violation, they expected the third parties to punish the norm violators immediately. This phenomenon appears only when the third-party actors can achieve justice between norm violators and victims.
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Affiliation(s)
- Jianbiao Li
- Reinhard Selten Laboratory, China Academy of Corporate Governance, Business School, Nankai University, Tianjin, China.,Nankai University Binhai College, Tianjin, China
| | - Shuaiqi Li
- Reinhard Selten Laboratory, China Academy of Corporate Governance, Business School, Nankai University, Tianjin, China
| | - Pengcheng Wang
- International Business School, Tianjin University of Finance and Economics, Tianjin, China
| | - Xiaoli Liu
- Reinhard Selten Laboratory, China Academy of Corporate Governance, Business School, Nankai University, Tianjin, China
| | - Chengkang Zhu
- Reinhard Selten Laboratory, China Academy of Corporate Governance, Business School, Nankai University, Tianjin, China
| | - Xiaofei Niu
- Reinhard Selten Laboratory, China Academy of Corporate Governance, Business School, Nankai University, Tianjin, China
| | - Guangrong Wang
- Neural Decision Science Laboratory, Weifang University, Weifang, China
| | - Xile Yin
- Reinhard Selten Laboratory, China Academy of Corporate Governance, Business School, Nankai University, Tianjin, China
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