Related Experiment Video
Updated: Feb 5, 2026
12:49
Transcranial Direct Current Stimulation tDCS of Wernicke's and Broca's Areas in Studies of Language Learning and Word Acquisition
Published on: July 13, 2019
18.0K
Modulating inhibitory control in test-anxious individuals via tDCS: An ERP study
Peibing Liu1, Zhaonian Hu1, Renlai Zhou2
1Department of Psychology, Nanjing University, Nanjing, China.
Journal of Psychiatric Research
|February 3, 2026
Summary
Transcranial direct current stimulation (tDCS) may improve inhibitory control in high test anxiety individuals. Active tDCS targeting the left dorsolateral prefrontal cortex reduced P3 amplitude, suggesting a potential non-invasive intervention.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Psychophysiology
Background:
- Test anxiety is a prevalent issue impacting academic achievement.
- Understanding the neural underpinnings of inhibitory control in test anxiety is crucial.
- Non-invasive brain stimulation offers a potential avenue for intervention.
Purpose of the Study:
- To investigate the effects of transcranial direct current stimulation (tDCS) on neural inhibitory control efficiency in individuals with high test anxiety.
- To explore the underlying neural mechanisms of tDCS in modulating test anxiety.
- To identify the left dorsolateral prefrontal cortex (DLPFC) as a potential neural target for tDCS interventions.
Main Methods:
- Recruited 42 participants with high or low test anxiety.
- Administered active (anodal) and sham tDCS targeting the left DLPFC.
- Recorded event-related potentials (ERPs) during a Flanker task to assess inhibitory control.
Main Results:
- Active tDCS significantly reduced P3 component amplitude in the high test anxiety group compared to sham.
- No significant effect of active tDCS was observed in the low test anxiety group.
- The P3 component is associated with attentional allocation during inhibitory control tasks.
Conclusions:
- tDCS modulates neural inhibitory control in individuals with high test anxiety by activating the left DLPFC.
- This study provides electrophysiological evidence supporting non-invasive neuromodulation as a potential intervention strategy.
- The left DLPFC is identified as a promising neural target for tDCS in managing test anxiety.
Related Concept Videos
01:23Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
473
Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
473
01:30Impact of Individuals on Individuals
388
Human behavior is intricately shaped by social influences that arise from interactions with others in diverse contexts. These influences not only mold beliefs and attitudes but also drive the regulation of behaviors through both direct communication and observational learning. The study of these processes falls within the domain of social psychology, which seeks to understand how individuals are affected by and affect those around them.Mechanisms of Social InfluenceDirect social influence...
388
01:29Excitatory and Inhibitory Effects of Neurotransmitters
13.0K
When an action potential reaches the presynaptic axon terminal, it releases neurotransmitters from the neuron into the synaptic cleft at a chemical synapse. The released neurotransmitter can be excitatory or inhibitory. The critical criteria commonly used to determine whether a molecule is a neurotransmitter at a chemical synapse are the molecule's presence in the presynaptic neuron. Second, its release is in response to strong presynaptic depolarization. And lastly, the presence of...
13.0K
01:28Impact of Groups on Individuals
359
Groups play a fundamental role in shaping individual behavior, as they establish norms that guide interactions and decision-making. Social psychology examines how individuals conform to group expectations, often adjusting their attitudes and actions to align with group norms. These norms can be formal, such as workplace policies, or informal, such as unspoken social expectations within a fraternity.Conformity and Social InfluenceConformity arises when individuals modify their behaviors or...
359
01:25Impact of Individuals on a Group
327
In social psychology, the interplay between individuals and groups is a central concern, particularly regarding how individual actions and characteristics influence group processes and outcomes. While much research emphasizes the group's power in shaping individual behavior, it is equally significant to understand how individuals contribute to the functioning, development, and success of groups.Individual Roles in Group Productivity and Decision-MakingIndividuals are not passive participants in...
327
01:28Adler's Individual Psychology
2.4K
Alfred Adler, a prominent figure in psychology, founded the school of individual psychology. In contrast to Freud's emphasis on sexual or aggressive motives, Adler suggested that individuals are primarily motivated by their purposes and goals. He believed that people strive for perfection rather than pleasure. Adler argued that individuals could creatively act upon their genetic inheritance and environmental experiences to shape their own lives, emphasizing conscious motivation over...
2.4K