scholarly journals Basal Ganglia Preferentially Encode Context Dependent Choice in a Two-Armed Bandit Task

2011 ◽  
Vol 5 ◽  
Author(s):  
André Garenne ◽  
Benjamin Pasquereau ◽  
Martin Guthrie ◽  
Bernard Bioulac ◽  
Thomas Boraud
Keyword(s):  
Basal Ganglia ◽  
Context Dependent ◽  
Dependent Choice

scholarly journals A Range-Normalization Model of Context-Dependent Choice: A New Model and Evidence

2012 ◽  
Vol 8 (7) ◽  
pp. e1002607 ◽  
Author(s):  
Alireza Soltani ◽  
Benedetto De Martino ◽  
Colin Camerer
Keyword(s):  
New Model ◽  
Context Dependent ◽  
Dependent Choice

Context-Dependent Choice with Nonlinear and Nontransitive Preferences

Econometrica ◽  
1988 ◽  
Vol 56 (5) ◽  
pp. 1221 ◽  
Author(s):  
Peter C. Fishburn ◽  
Irving H. LaValle
Keyword(s):  
Nontransitive Preferences ◽  
Context Dependent ◽  
Dependent Choice

scholarly journals Learning context-dependent choice functions

2021 ◽  
Author(s):  
Karlson Pfannschmidt ◽  
Pritha Gupta ◽  
Björn Haddenhorst ◽  
Eyke Hüllermeier
Keyword(s):  
Learning Context ◽  
Choice Functions ◽  
Context Dependent ◽  
Dependent Choice

scholarly journals Activity in a Cortical-Basal Ganglia Circuit for Song Is Required for Social Context-Dependent Vocal Variability

2010 ◽  
Vol 104 (5) ◽  
pp. 2474-2486 ◽  
Author(s):  
Laurie Stepanek ◽  
Allison J. Doupe
Keyword(s):  
Social Context ◽  
Basal Ganglia ◽  
Context Effects ◽  
Brain Regions ◽  
Social Regulation ◽  
Physiological Changes ◽  
External Conditions ◽  
Magnocellular Nucleus ◽  
Context Dependent ◽  
Vocal Variability

Variability in adult motor output is important for enabling animals to respond to changing external conditions. Songbirds are useful for studying variability because they alter the amount of variation in their song depending on social context. When an adult zebra finch male sings to a female (“directed”), his song is highly stereotyped, but when he sings alone (“undirected”), his song varies across renditions. Lesions of the lateral magnocellular nucleus of the anterior nidopallium (LMAN), the output nucleus of a cortical-basal ganglia circuit for song, reduce song variability to that of the stereotyped “performance” state. However, such lesions not only eliminate LMAN's synaptic input to its targets, but can also cause structural or physiological changes in connected brain regions, and thus cannot assess whether the acute activity of LMAN is important for social modulation of adult song variability. To evaluate the effects of ongoing LMAN activity, we reversibly silenced LMAN in singing zebra finches by bilateral reverse microdialysis of the GABAA receptor agonist muscimol. We found that LMAN inactivation acutely reduced undirected song variability, both across and even within syllable renditions, to the level of directed song variability in all birds examined. Song variability returned to pre-muscimol inactivation levels after drug washout. However, unlike LMAN lesions, LMAN inactivation did not eliminate social context effects on song tempo in adult birds. These results indicate that the activity of LMAN neurons acutely and actively generates social context-dependent increases in adult song variability but that social regulation of tempo is more complex.

scholarly journals Distributed context-dependent choice information in mouse posterior cortex

2021 ◽  
Author(s):  
Javier Orlandi ◽  
Mohammad Abdolrahmani ◽  
Ryo Aoki ◽  
Dmitry Lyamzin ◽  
Andrea Benucci
Keyword(s):  
Task Difficulty ◽  
Decision Variable ◽  
Cognitive Demands ◽  
Visual Stream ◽  
Posterior Cortex ◽  
Neural Data ◽  
Ventral Visual Stream ◽  
Context Dependent ◽  
Low Dimensional ◽  
Dependent Choice

Abstract Choice information appears in multi-area brain networks mixed with sensory, motor, and cognitive variables. In the posterior cortex—traditionally implicated in decision computations—the presence, strength, and area specificity of choice signals are highly variable, limiting a cohesive understanding of their computational significance. Examining the mesoscale activity in the mouse posterior cortex during a visual task, we found that choice signals defined a decision variable in a low-dimensional embedding space with a prominent contribution along the ventral visual stream. Their subspace was near-orthogonal to concurrently represented sensory and motor-related activations, with modulations by task difficulty and by the animals’ attention state. A recurrent neural network trained with animals’ choices revealed an equivalent decision variable whose context-dependent dynamics agreed with that of the neural data. Our results demonstrated an independent, multi-area decision variable in the posterior cortex, controlled by task features and cognitive demands, possibly linked to contextual inference computations in dynamic animal–environment interactions.

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