Word-frequency and phonological-neighborhood effects on verbal short-term memory.

Author(s):  
Steven Roodenrys ◽  
Charles Hulme ◽  
Alistair Lethbridge ◽  
Melinda Hinton ◽  
Lisa M. Nimmo
Author(s):  
Charles Hulme ◽  
Steven Roodenrys ◽  
Richard Schweickert ◽  
Gordon D. A. Brown ◽  
Sarah Martin ◽  
...  

1967 ◽  
Vol 21 (2) ◽  
pp. 393-399 ◽  
Author(s):  
Richard A. Kulp

A short-term memory (STM) experiment attempted to separate the effects of interference due to interpolated activity (IA, digit counting) and elapsed time in a retroactive inhibition (RI) paradigm, whereas in previous studies IA and elapsed time have been confounded. A further intent was to assess the effects of rate of information processing (rate of counting) on the retention of individual items. Two levels of word frequency (high and low) were combined factorially with three retention intervals (3, 9, and 18 sec.) and two levels of forced counting (1.3 and 2.25 digits/sec.); 20 Ss were assigned at random to each of the 12 conditions. Word frequency, retention interval, and rate of counting were significant sources of variation. The results indicated the importance of rate of information processing, as opposed to amount of IA, and elapsed time in the retention of individual items in STM. Results were discussed in terms of their relevance to the decay theory of forgetting up to 9 sec. Rate of information processing can be viewed as an effective means of filling S‘s “rehearsal space,” thus reducing implicit rehearsal during the retention period.


1994 ◽  
Vol 22 (6) ◽  
pp. 695-701 ◽  
Author(s):  
Steven Roodenrys ◽  
Charles Hulme ◽  
Janice Alban ◽  
Andrew W. Ellis ◽  
Gordon D. A. Brown

2016 ◽  
Vol 39 ◽  
Author(s):  
Mary C. Potter

AbstractRapid serial visual presentation (RSVP) of words or pictured scenes provides evidence for a large-capacity conceptual short-term memory (CSTM) that momentarily provides rich associated material from long-term memory, permitting rapid chunking (Potter 1993; 2009; 2012). In perception of scenes as well as language comprehension, we make use of knowledge that briefly exceeds the supposed limits of working memory.


2020 ◽  
Vol 63 (12) ◽  
pp. 4162-4178
Author(s):  
Emily Jackson ◽  
Suze Leitão ◽  
Mary Claessen ◽  
Mark Boyes

Purpose Previous research into the working, declarative, and procedural memory systems in children with developmental language disorder (DLD) has yielded inconsistent results. The purpose of this research was to profile these memory systems in children with DLD and their typically developing peers. Method One hundred four 5- to 8-year-old children participated in the study. Fifty had DLD, and 54 were typically developing. Aspects of the working memory system (verbal short-term memory, verbal working memory, and visual–spatial short-term memory) were assessed using a nonword repetition test and subtests from the Working Memory Test Battery for Children. Verbal and visual–spatial declarative memory were measured using the Children's Memory Scale, and an audiovisual serial reaction time task was used to evaluate procedural memory. Results The children with DLD demonstrated significant impairments in verbal short-term and working memory, visual–spatial short-term memory, verbal declarative memory, and procedural memory. However, verbal declarative memory and procedural memory were no longer impaired after controlling for working memory and nonverbal IQ. Declarative memory for visual–spatial information was unimpaired. Conclusions These findings indicate that children with DLD have deficits in the working memory system. While verbal declarative memory and procedural memory also appear to be impaired, these deficits could largely be accounted for by working memory skills. The results have implications for our understanding of the cognitive processes underlying language impairment in the DLD population; however, further investigation of the relationships between the memory systems is required using tasks that measure learning over long-term intervals. Supplemental Material https://doi.org/10.23641/asha.13250180


2020 ◽  
Vol 29 (4) ◽  
pp. 710-727
Author(s):  
Beula M. Magimairaj ◽  
Naveen K. Nagaraj ◽  
Alexander V. Sergeev ◽  
Natalie J. Benafield

Objectives School-age children with and without parent-reported listening difficulties (LiD) were compared on auditory processing, language, memory, and attention abilities. The objective was to extend what is known so far in the literature about children with LiD by using multiple measures and selective novel measures across the above areas. Design Twenty-six children who were reported by their parents as having LiD and 26 age-matched typically developing children completed clinical tests of auditory processing and multiple measures of language, attention, and memory. All children had normal-range pure-tone hearing thresholds bilaterally. Group differences were examined. Results In addition to significantly poorer speech-perception-in-noise scores, children with LiD had reduced speed and accuracy of word retrieval from long-term memory, poorer short-term memory, sentence recall, and inferencing ability. Statistically significant group differences were of moderate effect size; however, standard test scores of children with LiD were not clinically poor. No statistically significant group differences were observed in attention, working memory capacity, vocabulary, and nonverbal IQ. Conclusions Mild signal-to-noise ratio loss, as reflected by the group mean of children with LiD, supported the children's functional listening problems. In addition, children's relative weakness in select areas of language performance, short-term memory, and long-term memory lexical retrieval speed and accuracy added to previous research on evidence-based areas that need to be evaluated in children with LiD who almost always have heterogenous profiles. Importantly, the functional difficulties faced by children with LiD in relation to their test results indicated, to some extent, that commonly used assessments may not be adequately capturing the children's listening challenges. Supplemental Material https://doi.org/10.23641/asha.12808607


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