Role of the caudate nucleus in performance of the conditioned reactions connected with sound localization

1988 ◽  
Vol 6 (2) ◽  
pp. 91-97 ◽  
Author(s):  
N.F. Suvorov ◽  
M.B. Gulyakov
Keyword(s):  
Caudate Nucleus ◽  
Sound Localization

The Effects of Cue Reliability on Crossmodal Recalibration in Adults and Children

2021 ◽  
pp. 1-19
Author(s):  
Sophie Rohlf ◽  
Patrick Bruns ◽  
Brigitte Röder
Keyword(s):  
Multisensory Integration ◽  
Sound Localization ◽  
Visual Stimulus ◽  
Cue Combination ◽  
Single Exposure ◽  
Visual Cue ◽  
Cue Reliability ◽  
Adults And Children ◽  
Ventriloquist Effect

Abstract Reliability-based cue combination is a hallmark of multisensory integration, while the role of cue reliability for crossmodal recalibration is less understood. The present study investigated whether visual cue reliability affects audiovisual recalibration in adults and children. Participants had to localize sounds, which were presented either alone or in combination with a spatially discrepant high- or low-reliability visual stimulus. In a previous study we had shown that the ventriloquist effect (indicating multisensory integration) was overall larger in the children groups and that the shift in sound localization toward the spatially discrepant visual stimulus decreased with visual cue reliability in all groups. The present study replicated the onset of the immediate ventriloquist aftereffect (a shift in unimodal sound localization following a single exposure of a spatially discrepant audiovisual stimulus) at the age of 6–7 years. In adults the immediate ventriloquist aftereffect depended on visual cue reliability, whereas the cumulative ventriloquist aftereffect (reflecting the audiovisual spatial discrepancies over the complete experiment) did not. In 6–7-year-olds the immediate ventriloquist aftereffect was independent of visual cue reliability. The present results are compatible with the idea of immediate and cumulative crossmodal recalibrations being dissociable processes and that the immediate ventriloquist aftereffect is more closely related to genuine multisensory integration.

scholarly journals Role of the Pinna in Monaural Sound Localization

1970 ◽  
Vol 48 (1A) ◽  
pp. 95-95
Author(s):  
R. W. Gatehouse ◽  
R. E. Oesterreich
Keyword(s):  
Sound Localization

Role of the caudate nucleus in recovery from neonatal mediofrontal cortex lesions in the rat

1984 ◽  
Vol 17 (1) ◽  
pp. 51-65 ◽  
Author(s):  
John P. Vicedomini ◽  
Walter L. Isaac ◽  
Arthur J. Nonneman
Keyword(s):  
Caudate Nucleus

Neural Activity in Primate Caudate Nucleus Associated With Pro- and Antisaccades

2009 ◽  
Vol 102 (4) ◽  
pp. 2334-2341 ◽  
Author(s):  
Kristen A. Ford ◽  
Stefan Everling
Keyword(s):  
Caudate Nucleus ◽  
Discharge Rate ◽  
Indirect Pathway ◽  
Behavioral Context ◽  
Firing Rates ◽  
Neuronal Populations ◽  
Input Structure ◽  
Flexible Behavior ◽  
Two Populations

The basal ganglia (BG) play a central role in movement and it has been demonstrated that the discharge rate of neurons in these structures are modulated by the behavioral context of a given task. Here we used the antisaccade task, in which a saccade toward a flashed visual stimulus must be inhibited in favor of a saccade to the opposite location, to investigate the role of the caudate nucleus, a major input structure of the BG, in flexible behavior. In this study, we recorded extracellular neuronal activity while monkeys performed pro- and antisaccade trials. We identified two populations of neurons: those that preferred contralateral saccades (CSNs) and those that preferred ipsilateral saccades (ISNs). CSNs increased their firing rates for prosaccades, but not for antisaccades, and ISNs increased their firing rates for antisaccades, but not for prosaccades. We propose a model in which CSNs project to the direct BG pathway, facilitating saccades, and ISNs project to the indirect pathway, suppressing saccades. This model suggests one possible mechanism by which these neuronal populations could be modulating activity in the superior colliculus.

The role of caudate nucleus in dermorphin-induced catalepsy in rats

Peptides ◽  
1985 ◽  
Vol 6 ◽  
pp. 161-164 ◽  
Author(s):  
Giovanna Improta ◽  
Antonio Guglietta
Keyword(s):  
Caudate Nucleus
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