Related Experiment Video
Updated: Feb 2, 2026

Modulating Cognition Using Transcranial Direct Current Stimulation of the Cerebellum
Published on: February 15, 2015
Effect of transcranial direct current stimulation on cognitive function in stroke patients
Hussien Ahmed Shaker1, Salah Abd Elmonem Sawan1, Ebtesam Mohamed Fahmy2
11Department of Physical Therapy for Neuromuscular Disorder and its Surgery, Faculty of Physical Therapy, Cairo University, Giza, Egypt.
Transcranial direct current stimulation (tDCS) significantly improved cognitive functions and daily activity performance in stroke patients. This neuro-rehabilitation approach offers a safe and effective treatment option for post-stroke cognitive deficits.
Area of Science:
- Neuroscience
- Rehabilitation Medicine
- Clinical Neurology
Background:
- Cognitive impairment is a frequent and disabling consequence of stroke, significantly impacting patients' quality of life and independence.
- Transcranial direct current stimulation (tDCS) is emerging as a potential therapeutic tool for restoring cognitive functions in stroke survivors.
Purpose of the Study:
- To evaluate the efficacy of transcranial direct current stimulation (tDCS) in enhancing cognitive functions among patients who have experienced a stroke.
- To assess the impact of tDCS combined with cognitive training on functional independence in stroke patients.
Main Methods:
- Forty male stroke patients were randomly assigned to two groups: one receiving active tDCS with cognitive training (RehaCom) and the other receiving sham tDCS with the same training.
- Cognitive function assessments and Functional Independence Measure (FIM) evaluations were conducted pre- and post-intervention for all participants.
Main Results:
- Both groups showed significant improvements in attention, concentration, figural memory, logical reasoning, reaction behavior, and FIM scores after treatment.
- The group receiving active tDCS demonstrated significantly greater improvements across these cognitive and functional measures compared to the sham tDCS group.
Conclusions:
- Transcranial direct current stimulation (tDCS) is a safe and effective neuro-rehabilitation method for addressing cognitive impairments following a stroke.
- tDCS positively influences the performance of daily activities, contributing to improved functional independence in stroke patients.
Related Concept Videos
Cognitive Dissonance
Electrical Current
Language and Cognition
Cognitive Therapy
Cognition and Behavior
Cognitive Learning
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...

