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Related Concept Videos

The Auditory Ossicles01:11

The Auditory Ossicles

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The auditory ossicles of the middle ear transmit sounds from the air as vibrations to the fluid-filled cochlea. The auditory ossicles consist of two malleus (hammer) bones, two incus (anvil) bones, and two stapes (stirrups), one on each side. These bones develop during the fetal stage and are the ones to ossify first. They are fully mature at birth and do not grow afterward.
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
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Auditory Pathway01:15

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Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
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Auditory Perception01:17

Auditory Perception

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The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the...
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Schizophrenia01:17

Schizophrenia

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Schizophrenia, a term introduced by Swiss psychiatrist Eugen Bleuler in 1911, describes a severe psychological disorder marked by profound disruptions in attention, thought processes, language, emotion, and interpersonal relationships. The core feature of schizophrenia is psychosis — a state characterized by a fundamental detachment from reality. This disconnection manifests through distorted logic, impaired perception, and atypical behavior, severely affecting the lives of those...
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Biological Causes of Schizophrenia01:29

Biological Causes of Schizophrenia

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Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
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Psychological and Sociocultural Causes of Schizophrenia01:29

Psychological and Sociocultural Causes of Schizophrenia

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Schizophrenia, a complex psychiatric disorder, has been historically misunderstood. Early psychological theories attributed its origins to childhood trauma and unresponsive parenting. However, contemporary research largely rejects these notions, favoring the vulnerability-stress hypothesis. This model proposes that individuals with a genetic predisposition to schizophrenia may develop the disorder following exposure to significant environmental stressors. Notably, studies on high-risk...
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Related Experiment Video

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Optogenetic Stimulation of the Auditory Nerve
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Basic auditory processing deficits and their association with auditory emotion recognition in schizophrenia.

Michael S Kraus1, Trina M Walker1, L Fredrik Jarskog2

  • 1Department of Psychiatry & Behavioral Sciences, Duke University Medical Center, 10 Duke Medicine Circle, Durham, NC 27710, USA.

Schizophrenia Research
|October 1, 2018
PubMed
Summary

Schizophrenia patients show broad auditory deficits impacting emotion recognition. Deficient formant discrimination is a key factor, even after accounting for cognitive impairment.

Keywords:
AuditionCognitionEmotionHearingPsychosisSchizophrenia

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Auditory Perception

Background:

  • Individuals with schizophrenia exhibit impaired vocal emotion recognition, linked to poor global outcomes.
  • Auditory processing deficits, including pitch perception, contribute to these emotion recognition difficulties.
  • Previous research has narrowly assessed auditory deficits and their relation to emotion recognition in schizophrenia.

Purpose of the Study:

  • To comprehensively assess auditory function domains in schizophrenia patients.
  • To investigate the relationship between basic auditory processing and auditory emotion recognition.
  • To identify specific auditory skills contributing to emotion recognition deficits in schizophrenia.

Main Methods:

  • Assessed 87 schizophrenia patients and 73 healthy controls using a comprehensive auditory function test battery.
  • Examined five empirically derived domains of auditory function.
  • Employed correlational analysis to explore the link between auditory processing and emotion recognition in patients.

Main Results:

  • Schizophrenia patients displayed widespread auditory impairments across multiple domains.
  • All basic auditory tests correlated with auditory emotion recognition (p < .01) in patients.
  • Spectral processing and discrimination of vocal stimuli showed significant correlations with emotion recognition, even after controlling for cognition.

Conclusions:

  • Widespread auditory deficits contribute to impaired emotion recognition in schizophrenia.
  • Deficient formant discrimination is a critical auditory skill linked to impaired emotion recognition.
  • Formant discrimination uniquely predicts emotion recognition performance, independent of cognitive impairment and pitch processing deficits.