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Updated: Jul 10, 2026
10:09
Mapping the After-effects of Theta Burst Stimulation on the Human Auditory Cortex with Functional Imaging
Published on: September 12, 2012
Induction of LTP in the human auditory cortex by sensory stimulation
W C Clapp1, I J Kirk, J P Hamm
1Psychology Department, and Research Centre for Cognitive Neuroscience, City Campus, University of Auckland, Private Bag 92019 Auckland, New Zealand. w.clapp@auckland.ac.nz
The European Journal of Neuroscience
|September 24, 2005
Summary
Repetitive auditory stimulation can induce long-lasting increases in auditory evoked potentials (AEPs), specifically the N1 component. This study demonstrates the first direct evidence of long-term potentiation in the human auditory cortex.
Area of Science:
- Neuroscience
- Auditory Neuroscience
- Neuroplasticity
Background:
- Auditory evoked potentials (AEPs) reflect neural activity in response to sound.
- Investigating long-lasting changes in AEPs can reveal mechanisms of auditory cortex plasticity.
Purpose of the Study:
- To determine if high-frequency, repetitive auditory stimulation can induce long-lasting increases in human AEPs.
- To explore the potential for inducing long-term potentiation in the auditory cortex.
Main Methods:
- Non-invasive recording of AEPs using electroencephalogram (EEG) scalp electrodes.
- Application of high-frequency, repetitive auditory stimulation.
Main Results:
- Stable, long-lasting increases in the amplitude of the N1 component of the AEP were observed.
- These increases persisted for over an hour and were independent of arousal levels.
- This represents the first demonstration of induced long-lasting plastic changes in human AEPs.
Conclusions:
- High-frequency auditory stimulation can induce sustained plasticity in the human auditory system.
- This finding provides direct evidence for long-term potentiation in the auditory cortex of healthy humans.
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01:25Long-term Potentiation
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01:15Auditory Pathway
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