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Related Concept Videos

Auditory Pathway01:15

Auditory Pathway

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 the...
Hearing01:31

Hearing

When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
Auditory Perception01:17

Auditory Perception

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 cochlea, a...
Factors Affecting Perception01:25

Factors Affecting Perception

Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
Role of Amygdala in Memory01:16

Role of Amygdala in Memory

The amygdala is a small, almond-shaped structure responsible for processing and storing memories, particularly those linked to emotions like fear and stress. It plays an essential role in the brain's response to emotionally significant events and often enhances memory formation by triggering stress hormone release. The amygdala is vital for encoding and retrieving memories associated with fear or stress, a process that is adaptive by helping organisms avoid dangerous situations.
One of the...
Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex.

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Related Experiment Video

Updated: Jul 14, 2026

Combined Shuttle-Box Training with Electrophysiological Cortex Recording and Stimulation as a Tool to Study Perception and Learning
08:43

Combined Shuttle-Box Training with Electrophysiological Cortex Recording and Stimulation as a Tool to Study Perception and Learning

Published on: October 22, 2015

Effect of emotional context in auditory-cortex processing.

Yuri I Alexandrov1, Vasily Klucharev, Mikko Sams

  • 1V.B. Shvyrkov Laboratory of Neural Bases of Mind, Institute of Psychology, Russian Academy of Sciences, Yaroslavskaya str., 13, 129366, Moscow, Russia. yuraalexandrov@yandex.ru

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology
|June 16, 2007
PubMed
Summary

Emotional context significantly impacts auditory processing in the brain. Negative emotional contexts amplify early sensory responses in the auditory cortex compared to positive contexts.

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Stereotactically-guided Ablation of the Rat Auditory Cortex, and Localization of the Lesion in the Brain

Published on: October 11, 2017

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Auditory Neuroscience

Background:

  • Emotional context is known to modulate cognitive processes.
  • The influence of emotional context on early sensory processing in the auditory cortex remains less understood.

Purpose of the Study:

  • To investigate how emotional context affects the processing of neutral auditory stimuli in the human auditory cortex.
  • To determine if emotional context influences early sensory-specific cortical processing.

Main Methods:

  • Nine subjects performed a simple discrimination task with positive (monetary reward) and negative (loss avoidance) emotional contexts.
  • Event-related brain potentials (ERPs), specifically the N100 deflection in the auditory cortex, were measured.
  • Visual ERPs were also analyzed to assess feedback processing.

Main Results:

  • The N100 deflection in the auditory cortex was significantly larger in negative-emotional trials compared to positive-emotional trials.
  • There was a tendency for visual ERP latency to be shorter in negative-emotional trials, suggesting faster processing of positive visual feedback.
  • Learning dynamics of the discrimination task were also influenced by emotional context.

Conclusions:

  • Emotional context profoundly influences early sensory-specific processing in the auditory cortex.
  • Behavioral and neural processing at all stages are systemically organized by emotional context.
  • Emotional valence impacts both auditory sensory encoding and the processing of subsequent feedback.