Understanding the Differences: Transcranial Direct Current Stimulation (tDCS) vs. Transcranial Magnetic Stimulation (TMS)
Introduction: Transcranial Direct Current Stimulation (tDCS) and Transcranial Magnetic Stimulation (TMS) are two non-invasive brain stimulation techniques that have gained attention for their potential applications in research and therapeutic settings. While both methods aim to modulate brain activity, they differ in their mechanisms, effects, and applications. In this article, we explore the contrasts between tDCS and TMS, shedding light on their unique features and potential uses. Principle and Mechanism: Transcranial Direct Current Stimulation (tDCS): tDCS involves the application of a weak electrical current to the scalp using electrodes. It works by delivering a constant, low-intensity direct current to modulate the resting membrane potential of neurons. This process aims to enhance or inhibit neural activity, depending on the polarity of the electrodes (anodal or cathodal). Transcranial Magnetic Stimulation (TMS): TMS employs the principle of electromagnetic induction. It u...