Reward-enhanced encoding improves relearning of forgotten associations

Ewa A Miendlarzewska, Sara Ciucci, Carlo V Cannistraci, Daphne Bavelier, Sophie Schwartz

Research output: Contribution to journalArticle

Abstract

Research on human memory has shown that monetary incentives can enhance hippocampal memory consolidation and thereby protect memory traces from forgetting. However, it is not known whether initial reward may facilitate the recovery of already forgotten memories weeks after learning. Here, we investigated the influence of monetary reward on later relearning. Nineteen healthy human participants learned object-location associations, for half of which we offered money. Six weeks later, most of these associations had been forgotten as measured by a test of declarative memory. Yet, relearning in the absence of any reward was faster for the originally rewarded associations. Thus, associative memories encoded in a state of monetary reward motivation may persist in a latent form despite the failure to retrieve them explicitly. Alternatively, such facilitation could be analogous to the renewal effect observed in animal conditioning, whereby a reward-associated cue can reinstate anticipatory arousal, which would in turn modulate relearning. This finding has important implications for learning and education, suggesting that even when learned information is no longer accessible via explicit retrieval, the enduring effects of a past prospect of reward could facilitate its recovery.

Original languageEnglish
Pages (from-to)8557
JournalScientific Reports
Volume8
Issue number1
DOIs
Publication statusPublished - Jun 4 2018

Fingerprint

Reward
Motivation
Learning
Arousal
Cues
Healthy Volunteers
Education
Research

Cite this

Reward-enhanced encoding improves relearning of forgotten associations. / Miendlarzewska, Ewa A; Ciucci, Sara; Cannistraci, Carlo V; Bavelier, Daphne; Schwartz, Sophie.

In: Scientific Reports, Vol. 8, No. 1, 04.06.2018, p. 8557.

Research output: Contribution to journalArticle

Miendlarzewska, Ewa A ; Ciucci, Sara ; Cannistraci, Carlo V ; Bavelier, Daphne ; Schwartz, Sophie. / Reward-enhanced encoding improves relearning of forgotten associations. In: Scientific Reports. 2018 ; Vol. 8, No. 1. pp. 8557.
@article{c60de3133b5e4ff5930674eb09679145,
title = "Reward-enhanced encoding improves relearning of forgotten associations",
abstract = "Research on human memory has shown that monetary incentives can enhance hippocampal memory consolidation and thereby protect memory traces from forgetting. However, it is not known whether initial reward may facilitate the recovery of already forgotten memories weeks after learning. Here, we investigated the influence of monetary reward on later relearning. Nineteen healthy human participants learned object-location associations, for half of which we offered money. Six weeks later, most of these associations had been forgotten as measured by a test of declarative memory. Yet, relearning in the absence of any reward was faster for the originally rewarded associations. Thus, associative memories encoded in a state of monetary reward motivation may persist in a latent form despite the failure to retrieve them explicitly. Alternatively, such facilitation could be analogous to the renewal effect observed in animal conditioning, whereby a reward-associated cue can reinstate anticipatory arousal, which would in turn modulate relearning. This finding has important implications for learning and education, suggesting that even when learned information is no longer accessible via explicit retrieval, the enduring effects of a past prospect of reward could facilitate its recovery.",
author = "Miendlarzewska, {Ewa A} and Sara Ciucci and Cannistraci, {Carlo V} and Daphne Bavelier and Sophie Schwartz",
year = "2018",
month = "6",
day = "4",
doi = "10.1038/s41598-018-26929-w",
language = "English",
volume = "8",
pages = "8557",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",
number = "1",

}

TY - JOUR

T1 - Reward-enhanced encoding improves relearning of forgotten associations

AU - Miendlarzewska, Ewa A

AU - Ciucci, Sara

AU - Cannistraci, Carlo V

AU - Bavelier, Daphne

AU - Schwartz, Sophie

PY - 2018/6/4

Y1 - 2018/6/4

N2 - Research on human memory has shown that monetary incentives can enhance hippocampal memory consolidation and thereby protect memory traces from forgetting. However, it is not known whether initial reward may facilitate the recovery of already forgotten memories weeks after learning. Here, we investigated the influence of monetary reward on later relearning. Nineteen healthy human participants learned object-location associations, for half of which we offered money. Six weeks later, most of these associations had been forgotten as measured by a test of declarative memory. Yet, relearning in the absence of any reward was faster for the originally rewarded associations. Thus, associative memories encoded in a state of monetary reward motivation may persist in a latent form despite the failure to retrieve them explicitly. Alternatively, such facilitation could be analogous to the renewal effect observed in animal conditioning, whereby a reward-associated cue can reinstate anticipatory arousal, which would in turn modulate relearning. This finding has important implications for learning and education, suggesting that even when learned information is no longer accessible via explicit retrieval, the enduring effects of a past prospect of reward could facilitate its recovery.

AB - Research on human memory has shown that monetary incentives can enhance hippocampal memory consolidation and thereby protect memory traces from forgetting. However, it is not known whether initial reward may facilitate the recovery of already forgotten memories weeks after learning. Here, we investigated the influence of monetary reward on later relearning. Nineteen healthy human participants learned object-location associations, for half of which we offered money. Six weeks later, most of these associations had been forgotten as measured by a test of declarative memory. Yet, relearning in the absence of any reward was faster for the originally rewarded associations. Thus, associative memories encoded in a state of monetary reward motivation may persist in a latent form despite the failure to retrieve them explicitly. Alternatively, such facilitation could be analogous to the renewal effect observed in animal conditioning, whereby a reward-associated cue can reinstate anticipatory arousal, which would in turn modulate relearning. This finding has important implications for learning and education, suggesting that even when learned information is no longer accessible via explicit retrieval, the enduring effects of a past prospect of reward could facilitate its recovery.

U2 - 10.1038/s41598-018-26929-w

DO - 10.1038/s41598-018-26929-w

M3 - Article

C2 - 29867116

VL - 8

SP - 8557

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

IS - 1

ER -