The Effects of Word Length and Phonological Similarity in an Order Reconstruction Task at Immediate and Delayed Retention Intervals

2011 ◽  
Author(s):  
Miyuki Toga
1995 ◽  
Vol 8 (2) ◽  
pp. 81-91 ◽  
Author(s):  
C. Goerlich ◽  
I. Daum ◽  
I. Hertrich ◽  
H. Ackermann

The present study investigated the relationship between verbal short-term memory and motor speech processes in healthy control subjects and five patients suffering from Broca's aphasia. Control subjects showed a phonological similarity effect, a word length effect and an articulatory suppression effect, supporting the hypothesis of a phonological store and an articulatory loop component of short-term memory. A similar effect of phonological similarity was observed in the aphasic patients, while the effects of word length and articulatory suppression were reduced. In control subjects, measures of short-term memory were correlated to measures of motor speech rate only if speech rate was assessed in more complex conditions (such as sentence rather than syllable repetition). There was also evidence of an association of speech impairment and short-term memory deficits in the aphasic patients.


2003 ◽  
Vol 38 (6) ◽  
pp. 384-389 ◽  
Author(s):  
Nathalie Fournet ◽  
Alexandra Juphard ◽  
Catherine Monnier ◽  
Jean‐Luc Roulin

1989 ◽  
Vol 41 (1) ◽  
pp. 123-140 ◽  
Author(s):  
D. V. M. Bishop ◽  
J. Robson

In normal adults, concurrent articulation impairs short-term memory, abolishing both the phonological similarity effect and the word length effect when visual presentation is used. It also interferes with ability to judge whether visually presented words rhyme. It is generally assumed that concurrent articulation impairs performance because it prevents people from recoding material into an articulatory form. If this is the explanation, then individuals who are congenitally speechless (anarthric) or speech-impaired (dysarthric) should show the same impairments as normal individuals who are concurrently articulating—i.e. they should have reduced memory spans, fail to show word length and phonological similarity effects in short-term memory, and find rhyme judgement difficult. These predictions were tested in a study of 48 cerebral palsied individuals: 12 anarthric, 12 dysarthric, and 24 controls individually matched to the speech-impaired subjects. There was no impairment of memory span in speech-impaired subjects, who showed normal phonological similarity and word-length effects in short-term memory. Speech-impaired subjects did not differ from their controls in ability to tell whether names of pairs of pictures rhymed. These results challenge the notion that “articulatory coding” is implicated in short-term memory and rhyme judgement and suggests that processes such as rehearsal and phonemic segmentation involve generation of a more abstract central phonological code.


1994 ◽  
Vol 47 (4) ◽  
pp. 1055-1062 ◽  
Author(s):  
David Caplan ◽  
Gloria S. Waters

We report a partial replication of previous results by Caplan, Rochon, and Waters (1992), using methods that address objections raised by Baddeley and Andrade (this issue) and that improve on several techniques used by them. The results cast doubts on the role of articulation in determining the word length effect in span, and hence on the role of articulation in rehearsal.


1990 ◽  
Vol 1 (1) ◽  
pp. 74-77 ◽  
Author(s):  
Richard Schweickert ◽  
Lawrence Guentert ◽  
Lora Hersberger

Memory span is smaller for (a) items taking longer to pronounce and (b) phonologically more similar items. We investigated the relation between the two effects. Chase (1977) found that phonologically similar items were pronounced more slowly than dissimilar ones in a pronunciation task. A pronunciation rate difference in immediate recall could explain the phonological similarity effect as a special case of the word-length effect. Instead, the study found that pronunciation rates were equal. In the equation s = rt, span equals pronunciation rate times trace duration, word-length affects r while phonological similarity affects t. The two effects are shown to be complementary.


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