The implications of categorical and category-free mixed selectivity on representational geometries
The firing rates of individual neurons displaying mixed selectivity are modulated by multiple
task variables. When mixed selectivity is nonlinear, it confers an advantage by generating a …
task variables. When mixed selectivity is nonlinear, it confers an advantage by generating a …
Tuned geometries of hippocampal representations meet the computational demands of social memory
Social memory consists of two processes: the detection of familiar compared with novel
conspecifics and the detailed recollection of past social episodes. We investigated the …
conspecifics and the detailed recollection of past social episodes. We investigated the …
[HTML][HTML] Symmetry-based representations for artificial and biological general intelligence
Biological intelligence is remarkable in its ability to produce complex behaviour in many
diverse situations through data efficient, generalisable and transferable skill acquisition. It is …
diverse situations through data efficient, generalisable and transferable skill acquisition. It is …
Abstract representations emerge naturally in neural networks trained to perform multiple tasks
WJ Johnston, S Fusi - Nature Communications, 2023 - nature.com
Humans and other animals demonstrate a remarkable ability to generalize knowledge
across distinct contexts and objects during natural behavior. We posit that this ability to …
across distinct contexts and objects during natural behavior. We posit that this ability to …
The geometry of cortical representations of touch in rodents
Neurons often encode highly heterogeneous non-linear functions of multiple task variables,
a signature of a high-dimensional geometry. We studied the representational geometry in …
a signature of a high-dimensional geometry. We studied the representational geometry in …
Neural mechanisms of face familiarity and learning in the human amygdala and hippocampus
Recognizing familiar faces and learning new faces play an important role in social cognition.
However, the underlying neural computational mechanisms remain unclear. Here, we …
However, the underlying neural computational mechanisms remain unclear. Here, we …
The geometry of hippocampal CA2 representations enables abstract coding of social familiarity and identity
Social recognition consists of multiple memory processes, including the detection of
familiarity–the ability to rapidly distinguish familiar from novel individuals–and recollection …
familiarity–the ability to rapidly distinguish familiar from novel individuals–and recollection …
Predictions enable top-down pattern separation in the macaque face-processing hierarchy
T Nigam, CM Schwiedrzik - Nature Communications, 2024 - nature.com
Distinguishing faces requires well distinguishable neural activity patterns. Contextual
information may separate neural representations, leading to enhanced identity recognition …
information may separate neural representations, leading to enhanced identity recognition …
A familiar face and person processing area in the human temporal pole
B Deen, G Husain, WA Freiwald - Proceedings of the National Academy of …, 2024 - pnas.org
How does the brain process the faces of familiar people? Neuropsychological studies have
argued for an area of the temporal pole (TP) linking faces with person identities, but …
argued for an area of the temporal pole (TP) linking faces with person identities, but …
Neural representational geometries correlate with behavioral differences in monkeys and recurrent neural networks
Animals likely use a variety of strategies to solve laboratory tasks. Traditionally, combined
analysis of behavioral and neural recording data across subjects employing different …
analysis of behavioral and neural recording data across subjects employing different …