Global processing speed as a mediator of developmental changes in children’s auditory memory span

2005 ◽  
Vol 91 (2) ◽  
pp. 89-112 ◽  
Author(s):  
Angela N. Ferguson ◽  
Judith A. Bowey
Keyword(s):  
Processing Speed ◽  
Memory Span ◽  
Auditory Memory ◽  
Developmental Changes ◽  
Global Processing

Short-Term Auditory Memory, Oral Perception, and Experimental Sound Learning

1969 ◽  
Vol 12 (1) ◽  
pp. 185-192 ◽  
Author(s):  
John L. Locke
Keyword(s):  
Memory Span ◽  
Auditory Memory ◽  
Span Task ◽  
Short Term ◽  
Learning Framework ◽  
Sound Learning ◽  
Oral Perception

Ten children with high scores on an auditory memory span task were significantly better at imitating three non-English phones than 10 children with low auditory memory span scores. An additional 10 children with high scores on an oral stereognosis task were significantly better at imitating two of the three phones than 10 children with low oral stereognosis scores. Auditory memory span and oral stereognosis appear to be important subskills in the learning of new articulations, perhaps explaining their appearance in the literature as “etiologies” of disordered articulation. Although articulation development and the experimental acquisition of non-English phones have certain obvious differences, they seem to share some common processes, suggesting that the sound learning framework may be an efficacious technique for revealing otherwise inaccessible information.

Verbal fluency in male and female schizophrenia patients: Different patterns of association with processing speed, working memory span, and clinical symptoms.

2018 ◽  
Vol 32 (1) ◽  
pp. 65-76 ◽  
Author(s):  
Gildas Brébion ◽  
Christian Stephan-Otto ◽  
Susana Ochoa ◽  
Lourdes Nieto ◽  
Montserrat Contel ◽  
...  
Keyword(s):  
Working Memory ◽  
Processing Speed ◽  
Verbal Fluency ◽  
Memory Span ◽  
Clinical Symptoms ◽  
Male And Female

Processing Speed and Working Memory Span: Their Differential Role in Superficial and Deep Memory Processes in Schizophrenia

2011 ◽  
Vol 17 (3) ◽  
pp. 485-493 ◽  
Author(s):  
Gildas Brébion ◽  
Rodrigo A. Bressan ◽  
Lyn S. Pilowsky ◽  
Anthony S. David
Keyword(s):  
Working Memory ◽  
Processing Speed ◽  
Visual Memory ◽  
Memory Impairment ◽  
Memory Span ◽  
Memory Deficit ◽  
Regression Analyses ◽  
Independent Variables ◽  
Group Processing ◽  
Two Factors

Previous work has suggested that decrement in both processing speed and working memory span plays a role in the memory impairment observed in patients with schizophrenia. We undertook a study to examine simultaneously the effect of these two factors. A sample of 49 patients with schizophrenia and 43 healthy controls underwent a battery of verbal and visual memory tasks. Superficial and deep encoding memory measures were tallied. We conducted regression analyses on the various memory measures, using processing speed and working memory span as independent variables. In the patient group, processing speed was a significant predictor of superficial and deep memory measures in verbal and visual memory. Working memory span was an additional significant predictor of the deep memory measures only. Regression analyses involving all participants revealed that the effect of diagnosis on all the deep encoding memory measures was reduced to non-significance when processing speed was entered in the regression. Decreased processing speed is involved in verbal and visual memory deficit in patients, whether the task require superficial or deep encoding. Working memory is involved only insofar as the task requires a certain amount of effort. (JINS, 2011, 17, 485–493)

Decreased processing speed might account for working memory span deficit in schizophrenia, and might mediate the associations between working memory span and clinical symptoms

2014 ◽  
Vol 29 (8) ◽  
pp. 473-478 ◽  
Author(s):  
G. Brébion ◽  
C. Stephan-Otto ◽  
E. Huerta-Ramos ◽  
J. Usall ◽  
M. Perez del Olmo ◽  
...  
Keyword(s):  
Working Memory ◽  
Processing Speed ◽  
Memory Impairment ◽  
Negative Symptoms ◽  
Memory Span ◽  
Clinical Symptoms ◽  
Verbal Working Memory ◽  
Motor Speed ◽  
Speed Measure ◽  
Cognitive Speed

AbstractObjectiveVerbal working memory span is decreased in patients with schizophrenia, and this might contribute to impairment in higher cognitive functions as well as to the formation of certain clinical symptoms. Processing speed has been identified as a crucial factor in cognitive efficiency in this population. We tested the hypothesis that decreased processing speed underlies the verbal working memory deficit in patients and mediates the associations between working memory span and clinical symptoms.MethodForty-nine schizophrenia inpatients recruited from units for chronic and acute patients, and forty-five healthy participants, were involved in the study. Verbal working memory span was assessed by means of the letter-number span. The Digit Copy test was used to assess motor speed, and the Digit Symbol Substitution Test to assess cognitive speed.ResultsThe working memory span was significantly impaired in patients (F(1,90) = 4.6, P < 0.05). However, the group difference was eliminated when either the motor or the cognitive speed measure was controlled (F(1,89) = 0.03, P = 0.86, and F(1,89) = 0.03, P = 0.88). In the patient group, working memory span was significantly correlated with negative symptoms (r = –0.52, P < 0.0001) and thought disorganisation (r = –0.34, P < 0.025) scores. Regression analyses showed that the association with negative symptoms was no longer significant when the motor speed measure was controlled (β = –0.12, P = 0.20), while the association with thought disorganisation was no longer significant when the cognitive speed measure was controlled (β = –0.10, P = 0.26).ConclusionsDecrement in motor and cognitive speed plays a significant role in both the verbal working memory impairment observed in patients and the associations between verbal working memory impairment and clinical symptoms.

Non temporal determinants of bilingual memory capacity: The role of long-term representations and fluency

1998 ◽  
Vol 1 (2) ◽  
pp. 117-130 ◽  
Author(s):  
DINO CHINCOTTA ◽  
GEOFFREY UNDERWOOD
Keyword(s):  
Short Term Memory ◽  
Memory Span ◽  
Memory Capacity ◽  
Auditory Memory ◽  
Language Fluency ◽  
Short Term ◽  
Term Memory ◽  
Language Dominance ◽  
Lexical Representations ◽  
Subvocal Rehearsal

Two experiments examine the view that the variation in bilingual short-term memory capacity is determined by differential rates of subvocal rehearsal between the languages. Auditory memory span and articulation time were measured for three bilingual groups who spoke Finnish at home and Swedish at school (FS), and either Finnish (FF) or Swedish (SS) in both the home and the school. The results of Experiment 1 indicate that memory span for words varied in a lawful manner as a function of both articulation time and language dominance for SS and FF. For FS, however, an equivalent memory span between the languages was noted despite a shorter articulation time in Finnish than Swedish. Experiment 2 found that for items with no pre-existing lexical representations (nonwords), articulation time was a more reliable predictor of memory span than language dominance for all three groups. The finding that within-language memory span was greater for short items than long items shows that, ceteris paribus, bilingual short-term memory capacity is sensitive to the effects of word length in both the dominant and non-dominant language. Taken together, these findings moderate the view that bilingual short-term memory capacity is mediated exclusively by subvocal rehearsal and indicate an influential contribution from factors related to language fluency and the strength of lexico-semantic representations.

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