High-definition Transcranial Direct Current Stimulation effect and its time-course on 2-back task: An event-related potential (ERP) study

Tan, D.G.H.; Ting, K.H.; Chan, Chi Chung

doi:10.1016/j.brs.2015.01.114

Cited by 3 publications

(3 citation statements)

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“…By this method, researchers have compared the spatial resolution between conventional and HD-tDCS and found that conventional tDCS had diffuse current flows, while the highdefinition ones had current flows constrained in the ring with radius about 3.5 cm (Kuo et al, 2013). Previous studies using HD-tDCS have demonstrated the effects of modulating cortical excitability on working memory capacity (Tan, Ting, & Chan, 2015), using spatial navigation in healthy, aged individuals (Hampstead & Hartley, 2015), and improving treatment of aphasia (Richardson, Datta, Dmochowski, Parra, & Fridriksson, 2015). Nevertheless, there is scarce evidence on the application of HD-tDCS to study advanced cognitive functions, such as risk-based decision making.…”

Section: Introductionmentioning

confidence: 99%

High‐definition transcranial direct current stimulation (HD‐tDCS) of left dorsolateral prefrontal cortex affects performance in Balloon Analogue Risk Task (BART)

Guo

Zhang

et al. 2018

Brain and Behavior

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BackgroundStudies on risk preferences have long been of great concern and have examined the neural basis underlying risk‐based decision making. However, studies using conventional transcranial direct current stimulation (tDCS) revealed that bilateral stimulation could change risk propensity with limited evidence of precisely focalized unilateral high‐definition transcranial direct current stimulation (HD‐tDCS). The aim of this experiment was to investigate the effect of HD‐tDCS focalizing the left dorsal lateral prefrontal cortex (DLPFC) on risk‐taking behavior during the Balloon Analogue Risk Task (BART).MethodsThis study was designed as a between‐subject, single‐blind, sham‐controlled experiment. University students were randomly assigned to three groups: the anodal group (F3 anode, AF3, F1, F5, FC3 returned), the cathodal group (F3 cathodal, AF3, F1, F5, FC3 returned) and the sham group. Subsequently, 1.5‐mA 20‐min HD‐tDCS was applied during the BART, and the Positive Affect and Negative Affect Scale (PANAS), the Sensation Seeking Scale‐5 (SSS‐5), and the Behavioral Inhibition System and Behavioral Approach System scale (BIS/BAS) were measured as control variables.ResultsThe cathodal group earned less total money than the sham group, and no significant difference was observed between the anodal group and the sham group.ConclusionsThese results showed that, to some extent, focalized unilateral cathodal HD‐tDCS on left DLPFC could change performance during risky tasks and diminish risky decision making. Further studies are needed to investigate the dose effect and electrode distribution of HD‐tDCS during risky tasks and examine synchronous brain activity to show the neural basis.

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Section: Introductionmentioning

confidence: 99%

High‐definition transcranial direct current stimulation (HD‐tDCS) of left dorsolateral prefrontal cortex affects performance in Balloon Analogue Risk Task (BART)

Guo

Zhang

et al. 2018

Brain and Behavior

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“…Event-related potentials (ERPs) are a special type of brain evoked potentials (Tan et al, 2015), referring to the detectable bioelectric reactions generated in the nervous system and the corresponding parts of the brain that give the nervous system specific stimulus, or enable the brain to process the stimulus, and have a relatively fixed time interval (lock-time relationship) and a specific phase with the stimulus. Brain electrophysiological changes in the brain during cognitive processes are reflected by brain evoked potentials from the cranial surface through the superposition averaging technique.…”

Section: Introductionmentioning

confidence: 99%

Consumer Nostalgia Based on Brain Evoked Potential

Xiao

2018

Neuroquantology

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In order to use event-related potentials (ERPs) to reveal the neural mechanism of brain evoked potential analysis of consumers' nostalgic implicit preferences, this study selects the major consumers of nostalgic consumption, the post-80s, as samples and adopts a combination of behavioral experiments and brain evoked potential analysis experiments to study the consumers' nostalgic preferences. It holds that nostalgic products are more likely to induce participants' P2 component of brain evoked potential response to resource allocation, that is, nostalgic products are more able to attract consumers' attention unconsciously than the modern products. It is concluded that the N2 amplitude induced by the connection reaction of nostalgic products and negative sentiment vocabulary is significantly higher than that induced by its connection response with positive sentiment vocabulary. In addition, brain N2 component may be an indicator of implicit association test.

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“…The degree of involvement can be divided into high degree of involvement and low degree of involvement. Event-related potentials (ERPs) are a special type of brain evoked potentials (Tan et al, 2015). They refer to the bioelectric reactions that can be detected, and have a relatively fixed time interval (lock-time relationship) and a specific phase with stimuli in the corresponding parts of the system and brain after giving specific stimuli to the nervous system or the processing of the brain to the stimuli, as shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

Decision-making Neural Mechanism of Online Purchase Intention through Two Clues—Price and Seller’s Reputation Based on Brain Evoked Potential Analysis

2018

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In order to study the decision-making neural mechanism of online purchase intention of price and seller's reputation, especially to systematically study the differences in the influencing mechanism of different product prices and seller's reputation, this paper adopts the cognitive neuroscience method of ERP experiment and designs the ERP experiment through the simplification and simulation of the online shopping environment so as to explore the decision-making neural mechanism of the online purchase intention of price and seller's reputation. The results show that in the face of different combinations of price and seller's reputation, consumer's process of making shopping decisions is the process of brain activity information processing and corresponding cognitive processing. The process can be divided into different cognitive stages, including decision-making risk cognition, decision conflict cognition and the classification of decision-making valence evaluation. In different cognitive stages, different key Brain evoked potential components will be evoked corresponding to N2, N400, LPP, etc. The differences in different degrees of involvement products are mainly reflected in the different clues stimulating corresponding Brain evoked potential components.

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High-definition Transcranial Direct Current Stimulation effect and its time-course on 2-back task: An event-related potential (ERP) study

Cited by 3 publications

References 0 publications

High‐definition transcranial direct current stimulation (HD‐tDCS) of left dorsolateral prefrontal cortex affects performance in Balloon Analogue Risk Task (BART)

High‐definition transcranial direct current stimulation (HD‐tDCS) of left dorsolateral prefrontal cortex affects performance in Balloon Analogue Risk Task (BART)

Consumer Nostalgia Based on Brain Evoked Potential

Decision-making Neural Mechanism of Online Purchase Intention through Two Clues—Price and Seller’s Reputation Based on Brain Evoked Potential Analysis

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