Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

GABAergic mechanisms gate tactile discrimination learning.

Hubert R Dinse1, Patrick Ragert, Burkhard Pleger

  • 1Institute for Neuroinformatics, Department of Theoretical Biology, Ruhr-University Bochum, ND 04, D-44780 Bochum, Germany. hubert.dinse@neuroinformatik.ruhr-uni-bochum.de

Neuroreport
|September 27, 2003
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Effect of physical activity on paired-pulse suppression in the somatosensory cortex after tibial nerve stimulation.

Experimental brain research·2026
Same author

A Single Session of Slackline Training Induces Rapid, Task-Specific Balance Improvements and Elevated Resting-State Beta Band Power.

European journal of sport science·2026
Same author

Fatigue after COVID-19 in occupationally exposed workers: prevalence, severity and associated risk factors in a cross-sectional analysis of a multicentre registry study.

BMJ open·2026
Same author

Persistent Symptoms After SARS-CoV-2 Infection in a Referred Occupational Clinical Registry: Symptom Patterns and Associated Factors.

Diseases (Basel, Switzerland)·2026
Same author

Conditioned pain modulation and nociception measured by pain-related evoked potentials in patients with polyneuropathy.

Frontiers in neurology·2026
Same author

Is Social Media Use a Blessing or Cure for Motor Function and Skill Acquisition? An Opinion Paper.

eNeuro·2026

Perceptual learning, the process of improving sensory discrimination, is modulated by GABAergic mechanisms. This study found that lorazepam, a GABAA receptor agonist, eliminated learning-induced improvements in tactile discrimination.

Area of Science:

  • Neuroscience
  • Cognitive Science
  • Pharmacology

Background:

  • The underlying mechanisms of perceptual learning are not fully understood.
  • Synaptic plasticity mechanisms are well-studied, but their role in perceptual learning requires clarification.

Purpose of the Study:

  • To investigate the pharmacological basis of perceptual learning.
  • To determine if GABAergic mechanisms influence Hebbian-induced perceptual learning.

Main Methods:

  • Perceptual learning was induced in human subjects via Hebbian co-activation of the skin on the right index fingers.
  • Tactile 2-point discrimination was assessed under placebo and lorazepam (GABAA receptor agonist) conditions.
  • Performance was evaluated on both the co-activated (right) and non-co-activated (left) index fingers.

Related Experiment Videos

Main Results:

  • Placebo administration resulted in improved tactile 2-point discrimination on the right index finger, indicating successful perceptual learning.
  • Lorazepam administration completely abolished the learning-induced improvement in tactile discrimination on the right index finger.
  • No significant drug effects on performance were observed on the left index finger, ruling out generalized drug effects.

Conclusions:

  • GABAergic mechanisms play a crucial role in gating and modulating specific forms of perceptual learning.
  • The findings link synaptic plasticity mechanisms to perceptual learning, suggesting a common pharmacological basis.
  • This research highlights the potential for pharmacological interventions to influence perceptual learning processes.