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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...
Vision01:24

Vision

Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
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.
Visual System01:26

Visual System

Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
Major Somatic Sensory Pathways01:28

Major Somatic Sensory Pathways

Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the posterior columns...
The Vestibular System01:29

The Vestibular System

The vestibular system is a set of inner ear structures that provide a sense of balance and spatial orientation. This system is comprised of structures within the labyrinth of the inner ear, including the cochlea and two otolith organs—the utricle and saccule. The labyrinth also contains three semicircular canals—superior, posterior, and horizontal—that are oriented on different planes.

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Related Experiment Video

Updated: Jun 2, 2026

Selective Tracing of Auditory Fibers in the Avian Embryonic Vestibulocochlear Nerve
11:27

Selective Tracing of Auditory Fibers in the Avian Embryonic Vestibulocochlear Nerve

Published on: March 18, 2013

The auditory dorsal pathway: orienting vision.

Stephen R Arnott1, Claude Alain

  • 1Rotman Research Institute, Baycrest Centre, 3560 Bathurst Street, Toronto, Ontario, Canada.sarnott@rotman-baycrest.on.ca

Neuroscience and Biobehavioral Reviews
|May 3, 2011
PubMed
Summary
This summary is machine-generated.

The dorsal auditory pathway may process sound spatial features to guide motor actions, not just spatial analysis. This suggests auditory spatial processing aids in action planning and directing attention.

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Last Updated: Jun 2, 2026

Selective Tracing of Auditory Fibers in the Avian Embryonic Vestibulocochlear Nerve
11:27

Selective Tracing of Auditory Fibers in the Avian Embryonic Vestibulocochlear Nerve

Published on: March 18, 2013

Direct Visualization of the Murine Dorsal Cochlear Nucleus for Optogenetic Stimulation of the Auditory Pathway
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Direct Visualization of the Murine Dorsal Cochlear Nucleus for Optogenetic Stimulation of the Auditory Pathway

Published on: January 20, 2015

A Large Lateral Craniotomy Procedure for Mesoscale Wide-field Optical Imaging of Brain Activity
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Area of Science:

  • Neuroscience
  • Auditory Processing
  • Sensory Integration

Background:

  • A prominent model suggests the dorsal auditory pathway processes sound spatial features.
  • This pathway originates from the posterior auditory cortex.

Purpose of the Study:

  • To critically evaluate the strict functional interpretation of the dorsal auditory pathway.
  • To explore the role of acoustic information in guiding motor output.
  • To propose an alternative view of auditory spatial processing within the dorsal pathway.

Main Methods:

  • Literature review and theoretical analysis.
  • Re-evaluation of existing models of auditory cortical function.
  • Conceptual integration of auditory spatial processing with action planning.

Main Results:

  • Difficulties with a strict spatial feature processing model for the dorsal pathway are identified.
  • A trend exists to view this pathway as guiding motor output using acoustic information.
  • Auditory spatial processing in the dorsal pathway may be a form of action processing, guiding visual attention.

Conclusions:

  • The dorsal pathway's auditory spatial processing may be linked to action planning and attentional orientation.
  • Integrating an auditory-guided motor aspect offers a more holistic and ecologically valid account of dorsal auditory processing.