RT Journal Article
T1 Action boosts episodic memory encoding in humans via engagement of a noradrenergic system.
A1 Yebra, Mar
A1 Galarza-Vallejo, Ana
A1 Soto-Leon, Vanesa
A1 Gonzalez-Rosa, Javier J
A1 de Berker, Archy O
A1 Bestmann, Sven
A1 Oliviero, Antonio
A1 Kroes, Marijn C W
A1 Strange, Bryan A
AB We are constantly interacting with our environment whilst we encode memories. However, how actions influence memory formation remains poorly understood. Goal-directed movement engages the locus coeruleus (LC), the main source of noradrenaline in the brain. Noradrenaline is also known to enhance episodic encoding, suggesting that action could improve memory via LC engagement. Here we demonstrate, across seven experiments, that action (Go-response) enhances episodic encoding for stimuli unrelated to the action itself, compared to action inhibition (NoGo). Functional magnetic resonance imaging, and pupil diameter as a proxy measure for LC-noradrenaline transmission, indicate increased encoding-related LC activity during action. A final experiment, replicated in two independent samples, confirmed a novel prediction derived from these data that emotionally aversive stimuli, which recruit the noradrenergic system, modulate the mnemonic advantage conferred by Go-responses relative to neutral stimuli. We therefore provide converging evidence that action boosts episodic memory encoding via a noradrenergic mechanism.
YR 2019
FD 2019-08-06
LK http://hdl.handle.net/10668/14369
UL http://hdl.handle.net/10668/14369
LA en
DS RISalud
RD Apr 7, 2025