Experience-dependent plasticity in the inferior colliculus: a site for visual calibration of the neural representation of auditory space in the barn owl

@inproceedings{Brainard1993ExperiencedependentPI,
  title={Experience-dependent plasticity in the inferior colliculus: a site for visual calibration of the neural representation of auditory space in the barn owl},
  author={Michael S. Brainard and E I Knudsen},
  booktitle={The Journal of neuroscience : the official journal of the Society for Neuroscience},
  year={1993}
}
The optic tectum (homolog of the superior colliculus) contains mutually aligned neural maps of auditory and visual space. During development, the organization of the auditory map is guided by spatial information provided by vision: barn owls raised wearing prismatic spectacles, which optically shift the visual field and the visual map in the optic tectum, develop an auditory map that is shifted by an approximately equivalent amount, such that alignment between the two maps is preserved (Knudsen… 

A Topographic Instructive Signal Guides the Adjustment of the Auditory Space Map in the Optic Tectum

TLDR
It is demonstrated that a topographic instructive signal is, indeed, involved in the calibration of the auditory space map in the barn owl optic tectum.

The optic tectum controls visually guided adaptive plasticity in the owl's auditory space map

TLDR
It is shown that a lesion eliminates adaptive adjustments specifically in the portion of the auditory map that represents frontal space on the same side of the brain, while the rest of the map continues to adjust adaptively.

An Anatomical Basis for Visual Calibration of the Auditory Space Map in the Barn Owl’s Midbrain

TLDR
Results indicate that anatomical reorganization of the ICCls–ICX projection contributes to the visual calibration of theICX auditory space map.

Registration of Neural Maps through Value-Dependent Learning: Modeling the Alignment of Auditory and Visual Maps in the Barn Owl’s Optic Tectum

TLDR
A computer model of the principal neural structures involved in the process of auditory localization in the barn owl is developed and it is suggested that value-dependent learning is sufficient to account for the registration of auditory and visual maps of space in the OT of the barn Owl.

A Site of Auditory Experience-Dependent Plasticity in the Neural Representation of Auditory Space in the Barn Owl's Inferior Colliculus

TLDR
The data indicate that plasticity at the level of the ICX is largely responsible for the adaptive adjustments in ITD tuning and frequency tuning that are observed in the optic tecta of owls raised with abnormal auditory experience.

Sensitive Periods for Visual Calibration of the Auditory Space Map in the Barn Owl Optic Tectum

TLDR
The results demonstrate that the timing and even the existence of sensitive periods for plasticity of a neural circuit and associated behavior can depend on multiple factors, including (1) the nature of the adjustment demanded of the system and (2) the richness of the sensory and social environment in which the plasticity is studied.

Early Visual Experience Shapes the Representation of Auditory Space in the Forebrain Gaze Fields of the Barn Owl

TLDR
This experience-based adjustment of binaural tuning in the AAr helps to maintain mutual registry between the forebrain and midbrain representations of auditory space and may help to ensure consistent behavioral responses to auditory stimuli.

Reinforcement Learning Predicts the Site of Plasticity for Auditory Remapping in the Barn Owl

TLDR
A model of the owl remapping is explored in which a global reinforcement signal whose delivery is controlled by visual foveation is explored, raising the possibility that the site of learning does not have to be genetically specified, but could be determined by how the learning procedure interacts with the network architecture.

Multiple Sites of Adaptive Plasticity in the Owl's Auditory Localization Pathway

TLDR
Results suggest that an age-dependent decrease in auditory map plasticity occurs first in the ICX and later at the higher level, in the OT, which is shown to decline substantially in adults.
...

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...