A transient high-dimensional geometry affords stable conjunctive subspaces for efficient action selection

A Kikumoto, A Bhandari, K Shibata, D Badre - Nature Communications, 2024 - nature.com
Flexible action selection requires cognitive control mechanisms capable of mapping the
same inputs to different output actions depending on the context. From a neural state-space …

The neural basis of swap errors in working memory

M Alleman, M Panichello, TJ Buschman… - Proceedings of the …, 2024 - pnas.org
When making decisions in a cluttered world, humans and other animals often have to hold
multiple items in memory at once—such as the different items on a shopping list …

Event-specific and persistent representations for contextual states in orbitofrontal neurons

F Ma, L Zhang, J Zhou - Current Biology, 2024 - cell.com
Flexible and context-dependent behaviors require animals, including humans, to identify
their current contextual state for proper rules to apply, especially when information that …

The gradient model of brain organization in decisions involving “empathy for pain”

K Labek, E Sittenberger, V Kienhöfer, L Rabl… - Cerebral …, 2023 - academic.oup.com
Influential models of cortical organization propose a close relationship between
heteromodal association areas and highly connected hubs in the default mode network. The …

Redundant representations are required to disambiguate simultaneously presented complex stimuli

WJ Johnston, DJ Freedman - PLOS Computational Biology, 2023 - journals.plos.org
A pedestrian crossing a street during rush hour often looks and listens for potential danger.
When they hear several different horns, they localize the cars that are honking and decide …

Modular representations emerge in neural networks trained to perform context-dependent tasks

WJ Johnston, S Fusi - bioRxiv, 2024 - biorxiv.org
The brain has a well-known large scale organization at the level of brain regions, where
different regions have been argued to primarily serve different behavioral functions. This …

[HTML][HTML] Practice Reshapes the Geometry and Dynamics of Task-tailored Representations

A Kikumoto, K Shibata, T Nishio, D Badre - bioRxiv, 2024 - pmc.ncbi.nlm.nih.gov
Extensive practice makes task performance more efficient and precise, leading to
automaticity. However, theories of automaticity differ on which levels of task representations …

Multimodal subspace independent vector analysis effectively captures the latent relationships between brain structure and function

X Li, P Kochunov, T Adali, RF Silva, VD Calhoun - bioRxiv, 2024 - pmc.ncbi.nlm.nih.gov
A key challenge in neuroscience is to understand the structural and functional relationships
of the brain from high-dimensional, multimodal neuroimaging data. While conventional …

Multimodal subspace independent vector analysis effectively captures the latent relationships between brain structure and function

X Li, P Kochunov, T Adali, RF Silva, VD Calhoun - bioRxiv, 2024 - biorxiv.org
A key challenge in neuroscience is to understand the structural and functional relationships
of the brain from high-dimensional, multimodal neuroimaging data. While conventional …

[HTML][HTML] Rational inattention in neural coding for economic choice

JM Fine, R Moreno-Bote, BY Hayden - bioRxiv, 2024 - pmc.ncbi.nlm.nih.gov
Mental operations like computing the value of an option are computationally expensive.
Even before we evaluate options, we must decide how much attentional effort to invest in the …