Open AccessInteractions Between Item Set and Vocoding in Serial Recall
Author(s) -
Adam K. Bosen,
Mary C Luckasen
Publication year - 2019
Publication title -
ear and hearing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.577
H-Index - 109
eISSN - 1538-4667
pISSN - 0196-0202
DOI - 10.1097/aud.0000000000000718
Subject(s) - short term memory , recall , consonant , vocabulary , psychology , active listening , memory span , stimulus (psychology) , speech recognition , audiology , cognition , working memory , serial position effect , cognitive psychology , free recall , vowel , computer science , communication , linguistics , medicine , philosophy , neuroscience
Serial recall of digits is frequently used to measure short-term memory span in various listening conditions. However, the use of digits may mask the effect of low quality auditory input. Digits have high frequency and are phonologically distinct relative to one another, so they should be easy to identify even with low quality auditory input. In contrast, larger item sets reduce listener ability to strategically constrain their expectations, which should reduce identification accuracy and increase the time and/or cognitive resources needed for identification when auditory quality is low. This diminished accuracy and increased cognitive load should interfere with memory for sequences of items drawn from large sets. The goal of this work was to determine whether this predicted interaction between auditory quality and stimulus set in short-term memory exists, and if so, whether this interaction is associated with processing speed, vocabulary, or attention.