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A Unifying Account of Angular Gyrus
Contributions to Episodic and Semantic Cognition
Authors:
HUMPHREYS, G.F., LAMBON RALPH, M.A., Simons, J.S.
Reference:
Trends in Neurosciences, 44(6):452-463
Year of publication:
2021
CBU number:
8609
Abstract:
The angular gyrus (AG) region of lateral parietal cortex has been implicated in a wide variety
of tasks and functions, generating numerous influential theories. However, these theories largely fail
to explain why so many apparently distinct cognitive activities implicate common parietal structures.
We propose a unifying model, based on a set of central principles, to account for coalescences of
cognitive task activations across AG. To illustrate the proposed framework, we show how these
principles account for findings from studies of episodic and semantic memory that have independently
implicated the same AG regions but thus far been considered from largely domain-specific
perspectives. We conclude that AG computations, as part of a wider lateral parietal system, enable the
online dynamic buffering of multi-sensory spatio-temporally extended representations
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