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Yuan B, Tolomeo S, Yang C, Wang Y, Yu R. The tDCS effect on Prosocial Behavior: A Meta-Analytic Review. Soc Cogn Affect Neurosci 2021; 17:26-42. [PMID: 34027543 PMCID: PMC8824678 DOI: 10.1093/scan/nsab067] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 03/29/2021] [Accepted: 05/22/2021] [Indexed: 12/11/2022] Open
Abstract
Previous studies have shown that transcranial direct current stimulation (tDCS) could potentially promote prosocial behaviors. However, results from randomized controlled trials are inconsistent. The current meta-analysis aimed to assess the effects of anodal and cathodal tDCS using single-session protocols on prosocial behaviors in healthy young adults and explore potential moderators of these effects. The results showed that compared with sham stimulation, anodal (excitatory) stimulation significantly increased (g = 0.27, 95% CI [0.11, 0.43], Z = 3.30, P = 0.001) and cathodal (inhibitory) stimulation significantly decreased prosocial behaviors (g = −0.19, 95% CI [−0.39, −0.01], Z = −1.95, P = 0.051) using a multilevel meta-analytic model. These effects were not significantly modulated by stimulation parameters (e.g. duration, intensity and site) and types of prosocial behavior. The risk of publication bias for the included effects was minimal, and no selective reporting (e.g. P-hacking) was found in the P-curve analysis. This meta-analysis showed that both anodal and cathodal tDCS have small but significant effects on prosocial behaviors. The current study provides evidence that prosocial behaviors are linked to the activity of the ‘social brain’. Future studies are encouraged to further explore whether tDCS could effectively treat social dysfunctions in psychiatry disorders.
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Affiliation(s)
- Bo Yuan
- Department of Psychology, Ningbo University, Beijing, China
| | - Serenella Tolomeo
- Department of Psychology, National University of Singapore, Singapore
| | - Chunliang Yang
- Institute of Developmental Psychology, Beijing Normal University, Beijing, China
| | - Ying Wang
- Department of Psychology, Ningbo University, Beijing, China
| | - Rongjun Yu
- Department of Management, Hong Kong Baptist University, Hong Kong, China.,Department of Sport, Physical Education and Health, Hong Kong Baptist University, Hong Kong, China.,Department of Physics, Hong Kong Baptist University, Hong Kong, China
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Gainsford K, Fitzgibbon B, Fitzgerald PB, Hoy KE. Transforming treatments for schizophrenia: Virtual reality, brain stimulation and social cognition. Psychiatry Res 2020; 288:112974. [PMID: 32353694 DOI: 10.1016/j.psychres.2020.112974] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 03/16/2020] [Accepted: 03/29/2020] [Indexed: 12/13/2022]
Abstract
Schizophrenia is characterised by delusions, hallucinations, anhedonia and apathy; while impairments in social cognition are often less recognised. Poor social cognition can lead to difficulties in obtaining and maintaining employment, academic progression, interpersonal relationships, and community functioning. Current interventions are highly intensive, require significant resources and have only modest effects on functional outcomes. Virtual reality (VR) and non-invasive brain stimulation (NIBS) may have a role in addressing these limitations. VR allows treatments that are potentially more accessible, less delivery intensive, and have higher ecological validity. While NIBS is able to directly modulate activity in social brain areas in order to promote neuroplasticity, strengthen neural connections and enhance brain function related to social cognitive behaviours. Therefore, the combination of VR and NIBS may allow for more efficient and transferrable interventions than those currently available. This review will explore the potential role of these technologies in the treatment of social cognitive impairment.
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Affiliation(s)
- Kirsten Gainsford
- Epworth Centre for Innovation in Mental Health, Epworth HealthCare and Department of Psychiatry, Monash University, Melbourne, Victoria, Australia..
| | - Bernadette Fitzgibbon
- Epworth Centre for Innovation in Mental Health, Epworth HealthCare and Department of Psychiatry, Monash University, Melbourne, Victoria, Australia..
| | - Paul B Fitzgerald
- Epworth Centre for Innovation in Mental Health, Epworth HealthCare and Department of Psychiatry, Monash University, Melbourne, Victoria, Australia..
| | - Kate E Hoy
- Epworth Centre for Innovation in Mental Health, Epworth HealthCare and Department of Psychiatry, Monash University, Melbourne, Victoria, Australia..
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Adenzato M, Manenti R, Gobbi E, Enrici I, Rusich D, Cotelli M. Aging, sex and cognitive Theory of Mind: a transcranial direct current stimulation study. Sci Rep 2019; 9:18064. [PMID: 31792263 PMCID: PMC6889494 DOI: 10.1038/s41598-019-54469-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 11/12/2019] [Indexed: 12/14/2022] Open
Abstract
Aging is accompanied by changes in cognitive abilities and a great interest is spreading among researchers about aging impact on social cognition skills, such as the Theory of Mind (ToM). Transcranial direct current stimulation (tDCS) has been used in social cognition studies founding evidence of sex-related different effects on cognitive ToM task in a young people sample. In this randomized, double-blind, sham-controlled study, we applied one active and one sham tDCS session on the medial prefrontal cortex (mPFC) during a cognitive ToM task, including both social (i.e., communicative) and nonsocial (i.e., private) intention attribution conditions, in sixty healthy aging individuals (30 males and 30 females). In half of the participants the anode was positioned over the mPFC, whereas in the other half the cathode was positioned over the mPFC. The results showed that: (i) anodal tDCS over the mPFC led to significant slower reaction times (vs. sham) for social intention attribution task only in female participants; (ii) No effects were found in both females and males during cathodal stimulation. We show for the first time sex-related differences in cognitive ToM abilities in healthy aging, extending previous findings concerning young participants.
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Affiliation(s)
- Mauro Adenzato
- Department of Psychology, University of Turin, Turin, Italy.,Neuroscience Institute of Turin, Turin, Italy
| | - Rosa Manenti
- Neuropsychology Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Elena Gobbi
- Neuropsychology Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Ivan Enrici
- Department of Philosophy and Educational Sciences, University of Turin, Turin, Italy
| | - Danila Rusich
- Department of Human Science, LUMSA University, Roma, Italy
| | - Maria Cotelli
- Neuropsychology Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy.
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Bell SB, DeWall N. Does transcranial direct current stimulation to the prefrontal cortex affect social behavior? A meta-analysis. Soc Cogn Affect Neurosci 2019; 13:899-906. [PMID: 30137565 PMCID: PMC6137315 DOI: 10.1093/scan/nsy069] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 08/08/2018] [Indexed: 11/13/2022] Open
Abstract
This meta-analysis (k = 48, N = 2196) examined the effect of transcranial direct current brain stimulation (tDCS) applied to the prefrontal cortex on a variety of social behaviors, including aggression, overeating, impulsivity, bias, honesty, and risk-taking. tDCS showed an overall significant effect on reducing undesirable behaviors, with an average effect size of d = −0.20. tDCS was most effective at reducing risk-taking behavior, bias, and overeating. tDCS did not affect aggression, impulsivity, or dishonesty. We examined moderators such as brain region of interest, online vs offline stimulation, within- vs between-subjects designs, dose, and duration, but none showed significant interactions. We also tested for potential publication bias using two different tools, which indicated signs of publication bias in the literature. After correcting for potential publication bias, the effect of tDCS was still significant, but the size was reduced (d = −0.10). These findings suggest the presence of tDCS studies with null findings outside of the published literature. Taken together, these results suggest that although tDCS can reduce undesirable behaviors, researchers should consider the types of behaviors they measure and use strategies to ensure sufficient power to detect a possible effect of tDCS on social behavior.
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Affiliation(s)
- Sarah Beth Bell
- Kastle Hall 125, Department of Psychology, University of Kentucky, Lexington, KY, USA
| | - Nathan DeWall
- Kastle Hall 125, Department of Psychology, University of Kentucky, Lexington, KY, USA
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Marques LM, Morello LYN, Boggio PS. Ventrolateral but not Dorsolateral Prefrontal Cortex tDCS effectively impact emotion reappraisal - effects on Emotional Experience and Interbeat Interval. Sci Rep 2018; 8:15295. [PMID: 30333566 PMCID: PMC6193012 DOI: 10.1038/s41598-018-33711-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 09/24/2018] [Indexed: 01/06/2023] Open
Abstract
Emotions can be understood as behavioral, physiological, and subjective individual’s alteration due to a given situation. Several times, an efficient regulation of these emotions can promote psychological and social survival. It has been demonstrated that the Prefrontal Cortex (PFC) presents a relevant role in cognitive control, especially during emotion regulation strategies. However, evidence for the role of the PFC and emotional regulation comes mostly from neuroimaging experiments lacking from causal information. Transcranial Direct Current Stimulation (tDCS) has been shown to be an efficient noninvasive neuromodulation technique capable to address causal hypothesis. The aim of this study was to investigate the role of two regions of the PFC (Dorsolateral and Ventrolateral region) on different strategies of emotional reappraisal during the observation of negative images. 180 undergraduate students (mean age 21,75 ± 3,38) participated in this study, divided in two experiments (Dorsolateral PFC - n = 90; Ventrolateral PFC - n = 90). As not expected, DLPFC tDCS did not modulate the responses on the emotional regulation task. However, VLPFC tDCS resulted in less negative valence of negative images as well as decreased cardiac interbeat interval on earlier moments of emotional processing. These findings supports the general view about the role of the PFC on emotional regulation and, at the same time, advances the field by providing evidence that evaluation of negative stimuli is much more based on the VLPFC than on the DLPCF.
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Affiliation(s)
- Lucas M Marques
- Social and Cognitive Neuroscience Laboratory and Developmental Disorders Program, Center for Health and Biological Sciences, Mackenzie Presbyterian University, 01241-001, Sao Paulo, Brazil
| | - Letícia Y N Morello
- Social and Cognitive Neuroscience Laboratory and Developmental Disorders Program, Center for Health and Biological Sciences, Mackenzie Presbyterian University, 01241-001, Sao Paulo, Brazil
| | - Paulo S Boggio
- Social and Cognitive Neuroscience Laboratory and Developmental Disorders Program, Center for Health and Biological Sciences, Mackenzie Presbyterian University, 01241-001, Sao Paulo, Brazil.
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Neuromodulation can reduce aggressive behavior elicited by violent video games. COGNITIVE AFFECTIVE & BEHAVIORAL NEUROSCIENCE 2016; 17:452-459. [DOI: 10.3758/s13415-016-0490-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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7
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Affiliation(s)
- Carlo Miniussi
- Neuroscience Section, Department of Clinical and Experimental Sciences, University of Brescia, Italy
- Cognitive Neuroscience Section, IRCCS Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
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