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Related Concept Videos

Brain Imaging01:14

Brain Imaging

Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).
Positive Symptoms Schizophrenia: Hallucinations and Delusions01:26

Positive Symptoms Schizophrenia: Hallucinations and Delusions

Schizophrenia is a complex psychiatric disorder characterized by a range of symptoms that significantly impact cognition, behavior, and emotional regulation. Among these, the positive symptoms stand out as they involve the addition or exaggeration of normal mental functions, deviating markedly from typical behavior and perception. Hallucinations and delusions are prominent positive symptoms, each profoundly affecting the individual's experience of reality.
Hallucinations
Hallucinations in...

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Related Experiment Video

Updated: Jul 5, 2026

Functional Imaging of Auditory Cortex in Adult Cats using High-field fMRI
10:50

Functional Imaging of Auditory Cortex in Adult Cats using High-field fMRI

Published on: February 19, 2014

[Auditory hallucinations and functional imaging].

D E J Linden1

  • 1School of Psychology and North Wales Clinical School, University of Wales, Bangor, Wales, UK. d.linden@bangor.ac.uk

Fortschritte Der Neurologie-Psychiatrie
|June 25, 2008
PubMed
Summary
This summary is machine-generated.

Auditory verbal hallucinations in schizophrenia involve active auditory and language brain areas. Integrating psychological and neurophysiological models may explain these vivid experiences and guide future treatments.

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Functional Imaging of Auditory Cortex in Adult Cats using High-field fMRI
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Published on: February 19, 2014

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Cognitive Psychology

Context:

  • Auditory verbal hallucinations (AVHs) are a hallmark symptom of schizophrenia, impacting perception.
  • Hallucinations occur across sensory modalities in various neuropsychiatric disorders.
  • They represent a key phenomenon in the psychology of perception, involving sensory experiences without external stimuli.

Purpose:

  • To explore the neurophysiological underpinnings of auditory hallucinations.
  • To integrate psychological and neurophysiological models of hallucination.
  • To discuss potential therapeutic targets based on functional imaging findings.

Summary:

  • Functional imaging reveals activation in the auditory cortex, limbic system, and language areas during AVHs.
  • A proposed model suggests patients may misattribute internal speech to external sources.
  • Limbic system activation correlates with the emotional content and arousal associated with hallucinations.

Impact:

  • Neurophysiological models of hallucination are becoming more refined.
  • Repetitive transcranial magnetic stimulation targeting the auditory cortex requires further investigation for treatment-resistant AVHs.
  • Psychological treatment approaches show promise but face challenges in quantitative measurement.
  • Future research should focus on brain connectivity patterns in addition to activity correlations.