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2017 ; 8
(ä): 316
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Exploring Mechanisms of Selective Directed Forgetting
#MMPMID28316584
Aguirre C
; Gómez-Ariza CJ
; Andrés P
; Mazzoni G
; Bajo MT
Front Psychol
2017[]; 8
(ä): 316
PMID28316584
show ga
While some studies have shown that providing a cue to selectively forget one
subset of previously learned facts may cause specific forgetting of this
information, little is known about the mechanisms underlying this memory
phenomenon. In three experiments, we aimed to better understand the nature of the
selective directed forgetting (SDF) effect. Participants studied a List 1
consisting of 18 sentences regarding two (or three) different characters and a
List 2 consisting of sentences regarding an additional character. In Experiment
1, we explored the role of rehearsal as the mechanism producing SDF by examining
the effect of articulatory suppression after List 1 and during List 2
presentation. In Experiments 2 and 3, we explored the role of attentional control
mechanisms by introducing a concurrent updating task after List 1 and during List
2 (Experiment 2) and by manipulating the number of characters to be selectively
forgotten (1 out of 3 vs. 2 out of 3). Results from the three experiments suggest
that neither rehearsal nor context change seem to be the mechanisms underlying
SDF, while the pattern of results is consistent with an inhibitory account. In
addition, whatever the responsible mechanism is, SDF seems to rely on the
available attentional resources and the demands of the task. Our results join
other findings to show that SDF is a robust phenomenon and suggest boundary
conditions for the effect to be observed.
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