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Updated: Apr 5, 2026
Combined Shuttle-Box Training with Electrophysiological Cortex Recording and Stimulation as a Tool to Study Perception and Learning
Published on: October 22, 2015
The impact of electrical stimulation techniques on behavior
Andrea Antal1, Géza Gergely Ambrus2, Leila Chaieb3
1Department of Clinical Neurophysiology, University Medical Center, University of Göttingen, Göttingen, Germany.
Low-intensity transcranial electrical stimulation (tES) methods, including tDCS, tACS, and tRNS, can alter brain activity and cognitive performance. However, current understanding of tES mechanisms is insufficient to reliably predict behavioral outcomes or establish standard protocols for enhancing plasticity during learning.
Area of Science:
- Neuroscience
- Cognitive Science
- Neuromodulation
Background:
- Noninvasive brain stimulation techniques, including transcranial electrical stimulation (tES), apply low currents to the scalp.
- tES methods such as transcranial direct current stimulation (tDCS), transcranial alternating current stimulation (tACS), and transcranial random noise stimulation (tRNS) reversibly alter cortical excitability and activity.
Purpose of the Study:
- To review recent findings on the effects of tES on behavior, focusing on motor and visual functions.
- To examine the impact of tES on cognitive performance and learning-related plasticity.
Main Methods:
- Literature review of studies investigating the effects of tES on behavior.
- Analysis of research examining the relationship between tES, cortical plasticity, and cognitive task execution.
Main Results:
- While many studies assume tES enhances performance by increasing excitability or oscillatory coherence, results are inconsistent.
- Current knowledge of tES mechanisms is inadequate for predicting stimulation outcomes on cognitive or behavioral tasks.
- Standardized paradigms for leveraging tES to enhance cortical plasticity during learning or cognitive tasks are not yet established.
Conclusions:
- The precise mechanisms by which tES influences behavior and cognitive performance require further investigation.
- Predicting the effects of tES on specific tasks remains challenging due to incomplete understanding of its action mechanisms.
- Further research is needed to develop reliable protocols for using tES to modulate brain plasticity and enhance cognitive functions.
