scholarly journals Individual differences in working memory capacity and filtering

2018 ◽  
Author(s):  
Matthew Kyle Robison ◽  
Ashley L. Miller ◽  
Nash Unsworth
Keyword(s):  
Working Memory ◽  
Individual Differences ◽  
Working Memory Capacity ◽  
Relevant Information ◽  
Irrelevant Information ◽  
Constant Number ◽  
Complex Span ◽  
Span Tasks ◽  
Trial Basis ◽  
The Relationship

In three experiments we examined individual differences in working memory (WM) and their relationship with filtering – the selective encoding and maintenance of relevant information in the presence of irrelevant information. While some accounts argue that filtering is an important element of individual differences in WM (McNab & Klingberg, 2008; Robison & Unsworth, 2017a; Unsworth & Robison, 2016; Vogel, McCollough, & Machizawa, 2005), recent investigations have challenged this view (Mall, Morey, Wolff, & Lehnert, 2014; Shipstead, Lindsey, Marshall, & Engle, 2014). In all three experiments, we measured WM span with three complex span tasks and then had participants complete a visual WM task with a filtering component. In Experiment 1, participants were instructed to remember the orientation of relevant items (red rectangles) and ignore irrelevant items (blue rectangles). In Experiment 2, the color of relevant items changed randomly on a trial-by-trial basis. In Experiment 3, we presented a constant number of items. On half of trials, participants were told which color item would be tested before each trial. On the other half of trials, participants received no such cue. In situations where filtering was especially required, WM span accounted for a significant portion of variance in filtering trials beyond shared variance between filtering and non-filtering trials. We argue that filtering is one of several control processes that gives rise to individual differences in WM, but that the relationship is constrained by the degree to which filtering is demanded by the task.

scholarly journals Individual differences in working memory capacity are unrelated to the magnitudes of retrocue benefits

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chaoxiong Ye ◽  
Qianru Xu ◽  
Xinyang Liu ◽  
Piia Astikainen ◽  
Yongjie Zhu ◽  
...  
Keyword(s):  
Working Memory ◽  
Individual Differences ◽  
Significant Positive Correlation ◽  
Working Memory Capacity ◽  
Memory Capacity ◽  
Capacity Measurement ◽  
Object Based ◽  
Feature Dimension ◽  
The Relationship ◽  
Internal Attention

AbstractPrevious studies have associated visual working memory (VWM) capacity with the use of internal attention. Retrocues, which direct internal attention to a particular object or feature dimension, can improve VWM performance (i.e., retrocue benefit, RCB). However, so far, no study has investigated the relationship between VWM capacity and the magnitudes of RCBs obtained from object-based and dimension-based retrocues. The present study explored individual differences in the magnitudes of object- and dimension-based RCBs and their relationships with VWM capacity. Participants completed a VWM capacity measurement, an object-based cue task, and a dimension-based cue task. We confirmed that both object- and dimension-based retrocues could improve VWM performance. We also found a significant positive correlation between the magnitudes of object- and dimension-based RCB indexes, suggesting a partly overlapping mechanism between the use of object- and dimension-based retrocues. However, our results provided no evidence for a correlation between VWM capacity and the magnitudes of the object- or dimension-based RCBs. Although inadequate attention control is usually assumed to be associated with VWM capacity, the results suggest that the internal attention mechanism for using retrocues in VWM retention is independent of VWM capacity.

Distinct profiles of stimulus specific cortical activity for ignoring distraction during working memory encoding and maintenance, and associations with performance

2020 ◽  
Author(s):  
Charlotte Ashton ◽  
André Gouws ◽  
Marcus Glennon ◽  
THEODORE ZANTO ◽  
Steve Tipper ◽  
...  
Keyword(s):  
Working Memory ◽  
Individual Differences ◽  
Relevant Information ◽  
Cortical Activity ◽  
Irrelevant Information ◽  
Neural Mechanisms ◽  
Memory Encoding ◽  
Different Types ◽  
Short Time

Abstract Our ability to hold information in mind for a short time (working memory) is separately predicted by our ability to ignore two types of distraction: distraction that occurs while we put information into working memory (encoding) and distraction that occurs while we maintain already encoded information within working memory. This suggests that ignoring these different types of distraction involves distinct mechanisms which separately limit performance. Here we used fMRI to measure category-sensitive cortical activity and probe these mechanisms. The results reveal specific neural mechanisms by which relevant information is remembered and irrelevant information is ignored, which contribute to intra-individual differences in WM performance.

scholarly journals Early Auditory Evoked Potential Is Modulated by Selective Attention and Related to Individual Differences in Visual Working Memory Capacity

2014 ◽  
Vol 26 (12) ◽  
pp. 2682-2690 ◽  
Author(s):  
Ryan J. Giuliano ◽  
Christina M. Karns ◽  
Helen J. Neville ◽  
Steven A. Hillyard
Keyword(s):  
Working Memory ◽  
Individual Differences ◽  
Selective Attention ◽  
Working Memory Capacity ◽  
Relevant Information ◽  
Auditory Evoked Potential ◽  
Control Mechanisms ◽  
Auditory Selective Attention ◽  
Visual Change Detection ◽  
Listening Task

A growing body of research suggests that the predictive power of working memory (WM) capacity for measures of intellectual aptitude is due to the ability to control attention and select relevant information. Crucially, attentional mechanisms implicated in controlling access to WM are assumed to be domain-general, yet reports of enhanced attentional abilities in individuals with larger WM capacities are primarily within the visual domain. Here, we directly test the link between WM capacity and early attentional gating across sensory domains, hypothesizing that measures of visual WM capacity should predict an individual's capacity to allocate auditory selective attention. To address this question, auditory ERPs were recorded in a linguistic dichotic listening task, and individual differences in ERP modulations by attention were correlated with estimates of WM capacity obtained in a separate visual change detection task. Auditory selective attention enhanced ERP amplitudes at an early latency (ca. 70–90 msec), with larger P1 components elicited by linguistic probes embedded in an attended narrative. Moreover, this effect was associated with greater individual estimates of visual WM capacity. These findings support the view that domain-general attentional control mechanisms underlie the wide variation of WM capacity across individuals.

The relationship between working memory capacity and simultaneous interpreting performance

Interpreting ◽  
2016 ◽  
Vol 18 (1) ◽  
pp. 1-33 ◽  
Author(s):  
Jihong Wang
Keyword(s):  
Working Memory ◽  
Working Memory Capacity ◽  
Time Lag ◽  
Memory Capacity ◽  
Span Task ◽  
Complex Span ◽  
Simultaneous Interpreting ◽  
Signed Language ◽  
Native Signers ◽  
The Relationship

This experimental study investigated the relationship between signed language interpreters’ working memory capacity (WMC) and their simultaneous interpreting performance. Thirty-one professional Auslan (Australian Sign Language)/English interpreters participated: 14 native signers and 17 non-native signers. They completed simultaneous interpreting tasks from English into Auslan and vice versa, an English listening span task and an Auslan working memory span task; each interpreting task was followed by a short semi-structured interview. Quantitative results for the sample as a whole showed no significant correlations between bilingual WMC and overall simultaneous interpreting performance in either direction. The same trend was established for both the native signers and the non-native signers, considered as two separate groups. The findings thus suggest that professional signed language interpreters’ WMC as measured by complex span tasks is not closely associated with the overall quality of their simultaneous interpreting performance. Data regarding educational and professional background showed mixed patterns in relation to participants’ interpreting performance in each language direction. In the interviews, participants reported various triggers of cognitive overload in the simultaneous interpreting tasks (e.g. numbers, lists of items, a long time lag, dense information, fatigue) and mentioned their coping strategies (e.g. strategic omissions, summarization, generalization, adjusting time lag).

Measuring Working Memory Capacity With Automated Complex Span Tasks

2012 ◽  
Vol 28 (3) ◽  
pp. 164-171 ◽  
Author(s):  
Thomas S. Redick ◽  
James M. Broadway ◽  
Matt E. Meier ◽  
Princy S. Kuriakose ◽  
Nash Unsworth ◽  
...  
Keyword(s):  
Working Memory ◽  
Young Adult ◽  
Normative Data ◽  
Working Memory Capacity ◽  
Memory Capacity ◽  
Reading Span ◽  
Validity And Reliability ◽  
Complex Span ◽  
Adult Participants ◽  
Span Tasks

Individual differences in working memory capacity are related to a variety of behaviors both within and outside of the lab. Recently developed automated complex span tasks have contributed to increasing our knowledge concerning working memory capacity by making valid and reliable assessments freely available for use by researchers. Combining the samples from three testing locations yielded data from over 6,000 young adult participants who performed at least one of three such tasks (Operation, Symmetry, and Reading Span). Normative data are presented here for researchers interested in applying cutoffs for their own applications, and information on the validity and reliability of the tasks is also reported. In addition, the data were analyzed as a function of sex and college status. While automated complex span tasks are just one way to measure working memory capacity, the use of a standardized procedure for administration and scoring greatly facilitates comparison across studies.

scholarly journals Ultra-brief Ambulatory Assessment of Working Memory Capacity via Smart Phones

2021 ◽  
Author(s):  
Jonathan Hakun ◽  
Nelson Arley Roque ◽  
Courtney R. Gerver ◽  
Eric Scott Cerino
Keyword(s):  
Working Memory ◽  
Cognitive Assessment ◽  
Working Memory Capacity ◽  
Memory Capacity ◽  
Smart Phones ◽  
Testing Time ◽  
Complex Span ◽  
Administration Time ◽  
Span Tasks ◽  
Current Psychological

The development of mobile technology with substantial computing power (i.e. smart phones) has enabled the adaptation of performance-based cognitive assessments to remote administration and novel intensive longitudinal study designs (e.g. measurement burst designs). While an “ambulatory” cognitive assessment paradigm provides new opportunities to extend current psychological theories, the adaptation of conventional measures to a mobile format conducive to intensive repeated measurement involves balancing measurement precision, administration time, and procedural consistency. Across 3 studies, we developed mobile adaptations of computerized ‘complex span’ tasks to assess working memory capacity (WMC) and examined their validity, reliability, and sufficiency. Study 1 examined the convergent and criterion validity of a single administration of 3 ultra-brief complex span tasks on smart phones in a laboratory setting (ambulatory Operation Span, Symmetry Span, and Rotation Span tasks). Study 2 adapted the ultra-brief tasks to a 4-day measurement burst design where between- and within-person reliability was assessed over 16 repeated administrations (4 assessments/day). Study 3 involved the implementation of a single ultra-brief complex span task into a 7-day measurement burst design field study involving college students (5 assessments/day). Results of these 3 studies suggest that valid and highly reliable estimates of WMC can be obtained via smart phones, in the absence of intensive onboarding/training, in 3-6 minutes of total testing time (2 ultra-brief, mobile administrations). Considerations for future mobile cognitive assessment design and parameterization are discussed.

Individual Differences in Attention Control

2020 ◽  
pp. 175-211
Author(s):  
Cody A. Mashburn ◽  
Jason S. Tsukahara ◽  
Randall W. Engle
Keyword(s):  
Working Memory ◽  
Individual Differences ◽  
Fluid Intelligence ◽  
Working Memory Capacity ◽  
Memory Capacity ◽  
Attention Control ◽  
Executive Attention ◽  
Attention Theory ◽  
Attentional Resources ◽  
The Relationship

This chapter outlines the executive attention theory of higher-order cognition, which argues that individual differences in the ability to maintain information in working memory and disengage from irrelevant information is inextricably linked to variation in the ability to deploy domain-free attentional resources in a goal-directed fashion. It also summarizes recent addendums to the theory, particularly regarding the relationship between attention control, working memory capacity, and fluid intelligence. Specifically, the chapter argues that working memory capacity and fluid intelligence measures require different allocations of the same attentional resources, a fact which accounts for their strong correlation. At various points, it addresses theoretical alternatives to the executive attention theory of working memory capacity and empirical complications of the study of attention control, including difficulties deriving coherent attention control latent factors.

scholarly journals Individual differences in working memory capacity and the regulation of arousal

2020 ◽  
Author(s):  
Matthew Kyle Robison ◽  
Gene Arnold Brewer
Keyword(s):  
Working Memory ◽  
Individual Differences ◽  
Cognitive Abilities ◽  
Working Memory Capacity ◽  
Memory Capacity ◽  
Eye Tracker ◽  
Complex Span ◽  
Differential Functioning ◽  
Attentional Lapses ◽  
Explanatory Mechanism

Previously it has been theorized that differential functioning of the locus coeruleus-norepinephrine (LC-NE) system affects people's ability to regulate arousal, which has impacts on cognitive abilities. In the present study, we investigated three potential mechanisms by which the LC-NE system can fail to regulate arousal appropriately: hypoarousal, hyperarousal, and dysregulation of arousal. Each of these three could potentially account for why arousal affects cognition. To test the contributions of these three mechanisms, the present study examined individual differences in working memory capacity (WMC) and the regulation of arousal using pupillometry. Participants completed multiple complex span and visual arrays change-detection measures of WMC. An eye-tracker recorded pupil diameter as participants completed the visual arrays tasks. We found rather mixed evidence for the three mechanisms. Arousal dysregulation correlated with lower visual arrays performance and more self-reported attentional lapses. However arousal regulation did not correlate with complex span performance. There was also some evidence for hypoarousal as an explanatory mechanism, as arousal correlated with attentional lapses. We discuss the implications of the results for theories regarding the role of arousal regulation in cognitive performance and individual differences in cognitive abilities.

scholarly journals Wahlheim, Alexander, & Kane (forthcoming) - Interpolated retrieval effects on list isolation: Individual differences in working memory capacity

2018 ◽  
Author(s):  
Christopher N. Wahlheim ◽  
Timothy Alexander ◽  
Michael J. Kane
Keyword(s):  
Working Memory ◽  
Individual Differences ◽  
Free Recall ◽  
Working Memory Capacity ◽  
Correct Recall ◽  
Memory Capacity ◽  
Context Change ◽  
Generation Task ◽  
Complex Span ◽  
Term Memory

We examined the effects of interpolated retrieval from long-term memory (LTM) and short-term memory (STM) on list isolation in dual-list free recall and whether individual differences in working memory capacity (WMC) moderated those effects. Ninety-seven subjects completed study-test trials that included two study lists separated by either an exemplar generation task (LTM retrieval) or 2-back task (STM retrieval). Subjects then completed an externalized free recall task that allowed for examination of response accessibility and monitoring. Individual differences in WMC were assessed using three complex span tasks: Operation Span, Reading Span, and Rotation Span. Correct recall and intratrial intrusion summary scores showed no effect of interpolated retrieval on response accessibility or monitoring. However, serial position curves for correct recall of List 1 showed larger primacy in the 2-back than exemplar generation task for high-WMC subjects. We interpret these results from a context change perspective as showing that interpolated LTM retrieval accelerated context change for subjects who processed context more effectively. We consider the implications of these findings for models of memory.

scholarly journals A Validation Study of the German Complex-Span Tasks and Some General Considerations on Task Translation Procedures in Cognitive Psychology

2019 ◽  
Vol 35 (5) ◽  
pp. 725-736 ◽  
Author(s):  
Jan Rummel ◽  
Lena Steindorf ◽  
Ivan Marevic ◽  
Daniel Danner
Keyword(s):  
Working Memory ◽  
Cognitive Psychology ◽  
Memory Span ◽  
Working Memory Capacity ◽  
Memory Capacity ◽  
Complex Span ◽  
Reasoning Test ◽  
Equivalence Tests ◽  
Span Tasks ◽  
Open Question

Abstract. Automated complex-span tasks are widely used to assess working-memory capacity and the English versions show good psychometric properties ( Unsworth, Heitz, Schrock, & Engle, 2005 ). However, it is generally an open question whether translated task versions have the same properties as the original versions and whether results obtained with translated tasks can be interpreted equivalently to those obtained with the original tasks. We translated the complex-span tasks and had a sample of German participants perform these tasks as well as a running-memory-span task and a reasoning test. We assessed the reliabilities of the German complex-span tasks and their construct and criterion-related validities. Extrapolating from cross-cultural literature, we also employed a test of measurement invariance to compare the correlational patterns as well as the construct structure between the German sample and a similar North-American sample. Results show that the German complex-span tasks are reliable and valid indicators of working-memory capacity and that they are metrically and functionally equivalent to the original versions. As measurement equivalence is an important but often neglected topic in basic cognitive psychology, we also highlight the general benefits of using equivalence tests when translating cognitive tasks.

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