Related Experiment Video
Updated: Jan 30, 2026

How to Use the H1 Deep Transcranial Magnetic Stimulation Coil for Conditions Other than Depression
Published on: January 23, 2017
Accessory to dissipate heat from transcranial magnetic stimulation coils
Michel Belyk1, Braxton K Murphy2, Deryk S Beal3
1Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Ontario, Canada.
Background:
Transcranial magnetic stimulation (TMS) produces magnetic pulses by passing a strong electrical current through coils of wire. Repeated stimulation accumulates heat, which places practical constraints on experimental design. New method: We designed a condensation-free pre-chilled heat sink to extend the operational duration of transcranial magnetic stimulation coils.
Results:
The application of a pre-chilled heat sink reduced the rate of heating across all tests and extended the duration of stimulation before coil overheating, particularly in conditions where heat management was problematic. Comparison with existing method: Applying an external heat sink had the practical effect of extending the operational time of TMS coils by 5.8-19.3 minutes compared to standard operating procedures.
Conclusion:
Applying an external heat sink increases the quantity of data that can be collected within a single experimental session.
Related Concept Videos
Accessory Organs
Power Dissipated in a Circuit: Problem Solving
The simplest combinations of resistors are series and parallel connections. In a series circuit, the first resistor's output current flows into the second resistor's input; therefore, each resistor's current is the same. Thus, the equivalent resistance is the algebraic sum of the resistances. The current through the circuit can be found from Ohm's law and is equal to the...
Specific Heat
For example, increasing the temperature of one gram of water by 1°C requires one calorie of heat energy and can be written as 1 cal/g-°C, or...
Quantifying Heat
RNA Polymerase II Accessory Proteins
Heat Flow and Specific Heat

