scholarly journals The Role of Task-Essential Training and Working Memory in Offline and Online Morphological Processing

Languages ◽  
2021 ◽  
Vol 6 (1) ◽  
pp. 24
Author(s):  
Melisa Dracos ◽  
Nick Henry
Keyword(s):  
Working Memory ◽  
Morphological Processing ◽  
Control Group ◽  
Verbal Morphology ◽  
Online Processing ◽  
Enhanced Sensitivity ◽  
Offline Processing ◽  
Training Control ◽  
Verb Tense

This study investigates the effects of task-essential training on offline and online processing of verbal morphology and explores how working memory (WM) modulates the effects of training. We compare a no-training control group to two training groups who completed a multisession task-essential training focused on Spanish verbal inflections related to person–number agreement and tense. Effects of training were evaluated using an offline aural interpretation task and an online self-paced reading (SPR) assessment, administered as a pretest, posttest, and delayed posttest. Results showed that training led to more accurate interpretation of both person-number and tense information in the offline interpretation test. While higher WM was associated generally with greater accuracy, higher WM did not lead to greater gains from training. The SPR results showed that training did not increase sensitivity to subject–verb agreement or adverb–verb tense violations. However, among participants who underwent training, WM enhanced sensitivity under some conditions. These results demonstrate a role for individual differences in WM for offline and online processing, and they suggest that while task-essential training has been shown repeatedly to improve offline processing of target forms, its effects on online processing of redundant verbal morphology are more limited. Implications for L2 learning are discussed.

The Role of Memory in Processing Relative Clauses in Children With Specific Language Impairment

2015 ◽  
Vol 24 (1) ◽  
pp. 47-59 ◽  
Author(s):  
Pauline Frizelle ◽  
Paul Fletcher
Keyword(s):  
Working Memory ◽  
Language Impairment ◽  
Specific Language Impairment ◽  
Relative Clauses ◽  
Short Term Memory ◽  
Control Group ◽  
Matrix Clause ◽  
Specific Language ◽  
Almost All

Purpose This study investigated the relationship between 2 components of memory—phonological short-term memory (pSTM) and working memory (WM)—and the control of relative clause constructions in children with specific language impairment (SLI). Method Children with SLI and 2 control groups—an age-matched and a younger group of children with typical development—repeated sentences, including relative clauses, representing 5 syntactic roles and 2 levels of matrix clause complexity. The Working Memory Test Battery for Children was administered. Results All 3 groups showed significant associations between pSTM and both types of matrix clause construction. For children with SLI, significant associations emerged between (a) WM and more complex matrix clause constructions, (b) WM and relative clauses including a range of syntactic roles, and (c) pSTM and the least difficult syntactic role. In contrast, the age-matched control group could repeat almost all syntactic roles without invoking the use of either memory component. Conclusions The role of pSTM and WM in the production of relative clauses by children with SLI is influenced by the degree of difficulty of the structure to be recalled. In therapy, the effect of WM limitations can be minimized by approaching each structure within the context of a simple matrix clause.

Specific Mental Arithmetic Difficulties and General Arithmetic Learning Difficulties: The Role of Phonological Working Memory

2020 ◽  
pp. 003329412091686
Author(s):  
Yi Ding ◽  
Ru-De Liu ◽  
Wei Hong ◽  
Qiong Yu ◽  
Jia Wang ◽  
...  
Keyword(s):  
Working Memory ◽  
Memory Load ◽  
Mental Arithmetic ◽  
Learning Difficulties ◽  
Sixth Graders ◽  
Control Group ◽  
Working Memory Load ◽  
Phonological Working Memory ◽  
Significant Difference

The aim of this paper was to examine the role of phonological working memory in specific mental arithmetic difficulties and general arithmetic learning difficulties (ALD; difficulties presenting in both mental arithmetic and written arithmetic). In Study 1, we categorized 53 sixth graders into a control group, a group with specific mental arithmetic difficulties, and a group with general ALD. The findings indicated the group with specific mental arithmetic difficulties performed significantly worse on the task involving phonological working memory than did the control group. However, a significant difference was not found between the group with general ALD and the control group. In Study 2 involving 54 sixth graders, we decreased the load of phonological working memory by changing the format of the problems from horizontal (more reliance on phonological codes) to vertical (more reliance on visual resources). We found that the group with specific mental arithmetic difficulties performed comparably to the control group. In other words, when the working memory load is reduced, they no longer lag significantly behind on mental arithmetic. However, the group with general ALD still performed significantly worse than the control group when the problems were presented vertically, indicating that reduced phonological working memory load did not alleviate their arithmetic difficulties. The findings in both studies suggested that poor phonological working memory might contribute to the underlying mechanism for specific mental arithmetic difficulties but not as much for general ALD.

The Impact of Working Memory Training on Cognitive Abilities in Older Adults: The Role of Cognitive Reserve

2020 ◽  
Vol 13 (1) ◽  
pp. 52-61
Author(s):  
Sara Mičič ◽  
Marina Horvat ◽  
Karin Bakracevic
Keyword(s):  
Older Adults ◽  
Working Memory ◽  
Executive Functioning ◽  
Cognitive Abilities ◽  
Cognitive Reserve ◽  
Control Group ◽  
Visual Spatial ◽  
The Impact ◽  
Experimental Group

Objectives: The aims of this study were to determine whether Working Memory (WM) training improves the cognitive functioning of older adults and to determine the role of cognitive reserve in WM training. Method: Twenty-one older adults, aged between 65 and 91 years were included in the study. Ten of them were in the experimental group and 11 in the passive control group. The experimental group underwent 15 training sessions of n-back training over a period of five weeks, whereas the control group remained passive. All participants (from the experimental and control group) were tested before the training, one week after the training, and three months after the training with Rey– Osterrieth/Taylor Complex Figure test (ROCF), Digit span, and TMT (part A and part B). Results and Conclusion: Results of our study suggest that although the experimental group slightly improved their performance on the trained task, the progress was not statistically significant. There was also no statistically significant transfer of training effects onto tasks of visual-spatial and verbal memory, as well as those related to executive functioning. However, the study did identify a statistically significant correlation between cognitive reserve and certain tests performed at the final testing: tasks measuring executive functioning and spatial ability. Results also revealed that the group that showed improvement in the training task was significantly better in the ROCF test in comparison with the group that had not improved their performance on the N-back task. Thus, visual-spatial abilities (visual perception, construction, and memory) were more connected with success in WM training, than other measured cognitive abilities (e.g. verbal and numerical memory).

scholarly journals A case-control association study of COMT rs4680 Polymorphism with Obsessive-Compulsive Disorder and Cognitive Functions: The role of sex

2020 ◽  
Author(s):  
sajedeh hamidian ◽  
Abbas Pourshahbaz ◽  
atefeh moradkhani ◽  
Behrooz Dolatshahi ◽  
Esmaeil Shahsavand Ananloo ◽  
...  
Keyword(s):  
Working Memory ◽  
Obsessive Compulsive Disorder ◽  
Cognitive Functions ◽  
Memory Performance ◽  
Total Sample ◽  
Control Group ◽  
Obsessive Compulsive ◽  
Compulsive Disorder ◽  
Genetic Components

Abstract Background Previous studies have emphasized the role of genetic components in obsessive-compulsive disorder (OCD) and cognitive functions. One of the most controversial markers in this area is the COMT rs4680 polymorphism. In the present study, we aimed to investigate the effect of rs4680 on susceptibility to OCD and cognitive functions with respect to the moderating role of sex. Methods The subjects included 127 patients with OCD and 145 healthy controls. Genotyping was carried out by ARMS-PCR. The subjects underwent cognitive evaluations using the Wechsler Memory Scale-III. Data were analyzed using SPSS 22 and R package software. Results The results showed a significantly higher frequency of the AA genotype in the OCD group than in the healthy control group. Cognitive assessments showed weaker Immediate Memory and General Memory performance in the patients with OCD than in the control group. No significant association was found between rs4680 and memory dimensions in the total sample, whereas analysis by sex revealed a significant association of rs4680 with Working Memory only in females. Conclusions The results of this study confirm previous findings about the association of the AA genotype with OCD. These findings also corroborate previous assumptions about impaired episodic memory in patients with OCD. Moreover, the association of rs4680 with Working Memory only in females endorses the hypothesis of the sexual dimorphism of the effects of this COMT gene polymorphism.

scholarly journals Input frequencies in processing of verbal morphology in L1 and L2: Evidence from Russian

2010 ◽  
Vol 2 (2) ◽  
Author(s):  
Elena Tkachenko ◽  
Tatiana Chernigovskaya
Keyword(s):  
Adult Learners ◽  
Language Learning ◽  
Morphological Processing ◽  
Target Language ◽  
Verbal Morphology ◽  
L2 Learners ◽  
Type Frequency ◽  
L1 And L2 ◽  
Grammatical Structures

In this study we take a usage-based perspective on the analysis of data from the acquisition of verbal morphology by Norwegian adult learners of L2 Russian, as compared to children acquiring Russian as an L1. According to the usage-based theories, language learning is input-driven and frequency of occurrence of grammatical structures and lexical items in the input plays a key role in this process. We have analysed to what extent the acquisition and processing of Russian verbal morphology by children and adult L2 learners is dependent on the input factors, in particular on type and token frequencies. Our analysis of the L2 input based on the written material used in the instruction shows a different distribution of frequencies as compared to the target language at large. The results of the tests that elicited present tense forms of verbs belonging to four different inflectional classes (-AJ-, -A-, -I-, and -OVA-) have demonstrated that for both Russian children and L2 learners type frequency appears to be an important factor, influencing both correct stem recognition and generalisations. The results have also demonstrated token frequency effects. For L2 learners we observed also effects of formal instruction and greater reliance on morphological cues. In spite of the fact that L2 learners did not match completely any of the child groups, there are many similarities between L1 and L2 morphological processing, the main one being the role of frequency.

scholarly journals Accessing and maintaining referents in L2 processing of wh-dependencies

2014 ◽  
Vol 4 (2) ◽  
pp. 167-191 ◽  
Author(s):  
A. Kate Miller
Keyword(s):  
Lexical Access ◽  
Sentence Processing ◽  
Native Speaker ◽  
Control Group ◽  
Response Patterns ◽  
Time Profiles ◽  
Indirect Object ◽  
Online Processing ◽  
L2 Processing

This study considers the role of lexical access in the activation and maintenance of referents interacting with syntactic computations during the online processing of wh-dependencies in second-language French by beginning (N = 39), low intermediate (N = 40), and high intermediate (N = 35) learners. Two computer-paced reading tasks involving concurrent picture classification were designed to investigate trace reactivation during sentence processing: The first task targeted sentences that contained indirect object relative clauses, whereas the second task involved indirect object cleft sentences. Response time profiles for sentences containing English-French cognates as antecedents were compared with those for sentences with noncognate vocabulary. All learner participants produced differing response patterns for cognate and noncognate items. Intermediate learners’ response patterns were consistent with trace reactivation for cognate items only; noncognate items induced inhibitions or erratic response patterns. Additionally, a (French-English bilingual) native speaker control group (N = 35) showed the predicted response pattern with the noncognate items only. These findings indicate that the role of lexical access in sentence processing merits further consideration.

scholarly journals Executive Function and Metacognition: Relations and Measure on High Intellectual Ability in Typical Schoolchildren

2021 ◽  
Vol 13 (23) ◽  
pp. 13083
Author(s):  
Lourdes Viana-Sáenz ◽  
Sylvia Sastre-Riba ◽  
Mª Luz Urraca-Martínez
Keyword(s):  
Working Memory ◽  
Executive Functioning ◽  
Verbal Working Memory ◽  
Educational Interventions ◽  
Intellectual Ability ◽  
Metacognitive Awareness ◽  
Control Group ◽  
Metacognitive Regulation ◽  
The Relationship

The current understanding of high intellectual ability (HIA) involves considering the multidimensional nature of the skills that comprise it. In addition, conceptual advances related to how individuals manage the high intellectual resources available to them may help explain the possible gap between performance and high levels of competence. Understanding the role of executive functioning and metacognition in relation to the management of these resources is essential. Nonetheless, to date, the trajectory of their study is diverse, and empirical and measured evidence in this regard is limited. Thus, the objective of this work was to understand the relationship between executive functions and metacognition (and its components), as well as the measurement of these factors and their reliability. The study sample comprised schoolchildren (n = 43) with an HIA and a control group (n = 46) of schoolchildren with typical intelligence levels. Network analysis revealed differential intergroup connections between the executive functioning components as well as between those of metacognition and for each construct. The greatest relational weight was for metacognition components, with the most robust relationship being found in the group with HIA with metacognitive regulation, flexibility, and verbal working memory versus metacognitive awareness and inhibition in the typical group. Measurement derivations and their application in educational interventions to optimise the expression of high potential are also discussed.

Tryptophan-Niacin Metabolism in Rat with Puromycin Aminonucleoside-Induced Nephrosis

2006 ◽  
Vol 76 (1) ◽  
pp. 28-33 ◽  
Author(s):  
Yukari Egashira ◽  
Shin Nagaki ◽  
Hiroo Sanada
Keyword(s):  
Body Weight ◽  
Urinary Excretion ◽  
Enzyme Activities ◽  
Treated Group ◽  
Control Group ◽  
Puromycin Aminonucleoside ◽  
Low Level ◽  
Key Enzyme

We investigated the change of tryptophan-niacin metabolism in rats with puromycin aminonucleoside PAN-induced nephrosis, the mechanisms responsible for their change of urinary excretion of nicotinamide and its metabolites, and the role of the kidney in tryptophan-niacin conversion. PAN-treated rats were intraperitoneally injected once with a 1.0% (w/v) solution of PAN at a dose of 100 mg/kg body weight. The collection of 24-hour urine was conducted 8 days after PAN injection. Daily urinary excretion of nicotinamide and its metabolites, liver and blood NAD, and key enzyme activities of tryptophan-niacin metabolism were determined. In PAN-treated rats, the sum of urinary excretion of nicotinamide and its metabolites was significantly lower compared with controls. The kidneyα-amino-β-carboxymuconate-ε-semialdehyde decarboxylase (ACMSD) activity in the PAN-treated group was significantly decreased by 50%, compared with the control group. Although kidney ACMSD activity was reduced, the conversion of tryptophan to niacin tended to be lower in the PAN-treated rats. A decrease in urinary excretion of niacin and the conversion of tryptophan to niacin in nephrotic rats may contribute to a low level of blood tryptophan. The role of kidney ACMSD activity may be minimal concerning tryptophan-niacin conversion under this experimental condition.

Working Memory and Number Sense as Predictors of Mathematical (Dis-)Ability

2015 ◽  
Vol 223 (2) ◽  
pp. 102-109 ◽  
Author(s):  
Evelyn H. Kroesbergen ◽  
Marloes van Dijk
Keyword(s):  
Working Memory ◽  
Learning Disabilities ◽  
Spatial Working Memory ◽  
Number Sense ◽  
Mathematical Learning ◽  
Visual Spatial ◽  
Mathematical Learning Disabilities ◽  
Visual Spatial Working Memory ◽  
And Mathematics

Recent research has pointed to two possible causes of mathematical (dis-)ability: working memory and number sense, although only few studies have compared the relations between working memory and mathematics and between number sense and mathematics. In this study, both constructs were studied in relation to mathematics in general, and to mathematical learning disabilities (MLD) in particular. The sample consisted of 154 children aged between 6 and 10 years, including 26 children with MLD. Children performing low on either number sense or visual-spatial working memory scored lower on math tests than children without such a weakness. Children with a double weakness scored the lowest. These results confirm the important role of both visual-spatial working memory and number sense in mathematical development.

Working Memory Capacity and a Notorious Brain Teaser

2006 ◽  
Vol 53 (2) ◽  
pp. 123-131 ◽  
Author(s):  
Wim De Neys ◽  
Niki Verschueren
Keyword(s):  
Working Memory ◽  
Secondary Task ◽  
Working Memory Capacity ◽  
Memory Capacity ◽  
Task Load ◽  
Normative Reasoning ◽  
Monty Hall Dilemma ◽  
Monty Hall ◽  
Memory Resources

Abstract. The Monty Hall Dilemma (MHD) is an intriguing example of the discrepancy between people’s intuitions and normative reasoning. This study examines whether the notorious difficulty of the MHD is associated with limitations in working memory resources. Experiment 1 and 2 examined the link between MHD reasoning and working memory capacity. Experiment 3 tested the role of working memory experimentally by burdening the executive resources with a secondary task. Results showed that participants who solved the MHD correctly had a significantly higher working memory capacity than erroneous responders. Correct responding also decreased under secondary task load. Findings indicate that working memory capacity plays a key role in overcoming salient intuitions and selecting the correct switching response during MHD reasoning.

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