Effects
of Articulatory Suppression on Immediate serial Recall of Temporally
Grouped and Intonated Lists
S. Saito |
The
present study investigated the effects of temporal grouping and intonation
on immediate serial recall of digit lists in two conditions; a no-suppression
and an articulatory suppression condition. In the no-suppression
condition, in which only a memory task was required, a list of nine
digits was recalled better when it was presented with intonation
rather than without it. Furthermore, temporal grouping of items contributed
to the recall performance of a digit-list more than the intonation
did. These results indicated that prosody with which stimulus was
presented could facilitate the immediate serial recall. In the articulatory
suppression condition, in which the subjects were required to engage
in both a memory task and irrelevant articulation, the effect of
intonation disappeared. On the other hand, the grouping effect withstood
articulatory suppression. The sources of memory improvement by prosodic
information were discussed in terms of a working memory model. Key words: working memory, phonological loop, temporal grouping, intonation, articulatory suppression |