Title : Auditory signals evolve from hybrid - to eye - centered coordinates in the 2 primate superior colliculus

Jungah Lee and Jennifer M . Groh coordinates in the primate superior colliculus Auditory signals evolve from hybrid - to eye - centered

Auditory signals evolve from hybrid- to eye-centered coordinates in the primate superior colliculus.

Visual and auditory spatial signals initially arise in different reference frames. It has been postulated that auditory signals are translated from a head-centered to an eye-centered frame of reference compatible with the visual spatial maps, but, to date, only various forms of hybrid reference frames for sound have been identified. Here, we show that the auditory representation of space in the...

Sensorimotor integration in the primate superior colliculus. I. Motor convergence.

Orienting movements of the eyes and head are made to both auditory and visual stimuli even though in the primary sensory pathways the locations of auditory and visual stimuli are encoded in different coordinates. This study was designed to differentiate between two possible mechanisms for sensory-to-motor transformation. Auditory and visual signals could be translated into common coordinates in...

Sensorimotor integration in the primate superior colliculus. II. Coordinates of auditory signals.

Based on the findings of the preceding paper, it is known that auditory and visual signals have been translated into common coordinates at the level of the superior colliculus (SC) and share a motor circuit involved in the generation of saccadic eye movements. It is not known, however, whether the translation of sensory signals into motor coordinates occurs prior to or within the SC. Nor is it ...

An Auditory Localization and Coordinate Transform Chip

The localization and orientation to various novel or interesting events in the environment is a critical sensorimotor ability in all animals, predator or prey. In mammals, the superior colliculus (SC) plays a major role in this behavior, the deeper layers exhibiting topographically mapped responses to visual, auditory, and somatosensory stimuli. Sensory information arriving from different modal...