scholarly journals Investigating age differences in the influence of joint attention on working memory: a preregistered online study.

2021 ◽  
Author(s):  
Samantha Gregory ◽  
Klaus Kessler
Keyword(s):  
Working Memory ◽  
Eye Gaze ◽  
Younger Adults ◽  
Attentional Processes ◽  
Online Study ◽  
Age Related ◽  
Dynamic Head ◽  
Gaze Cuing ◽  
Important Evidence ◽  
Gaze Cues

Previous research has demonstrated that older adults make limited use of social cues as compared to younger adults. This has been investigated by testing the influence of gaze cues on attentional processes, with findings showing significantly smaller gaze cuing effects for older than younger adults. Here we aimed to investigate whether this would also result in age related differences in the influence of gaze cues on working memory. We therefore tested the effects of gaze cues from realistic human avatars on working memory across two experiments using dynamic head turns and more subtle eye gaze movements. Results demonstrated that for both older and younger adults, gaze cues influenced working memory processes, though there were some important differences related to the nature of the cue. Overall, we provide important evidence that sharing attention benefits cognition across the lifespan.

scholarly journals Resolving Age-Related Differences in Working Memory: Equating Perception and Attention Makes Older Adults Remember as Well as Younger Adults

2019 ◽  
Vol 45 (2) ◽  
pp. 120-134 ◽  
Author(s):  
Paul Verhaeghen ◽  
Shriradha Geigerman ◽  
Haoxiang Yang ◽  
Alejandra C. Montoya ◽  
Dobromir Rahnev
Keyword(s):  
Older Adults ◽  
Working Memory ◽  
Younger Adults ◽  
Age Related

scholarly journals LINKS BETWEEN POSITIVE AFFECT AND DISENGAGEMENT FROM NEGATIVE STIMULI IN YOUNGER AND OLDER ADULTS

2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S307-S307
Author(s):  
Kathryn L Ossenfort ◽  
Derek M Isaacowitz
Keyword(s):  
Older Adults ◽  
Negative Affect ◽  
Positive Affect ◽  
Positive And Negative Affect ◽  
Similar Response ◽  
Attentional Disengagement ◽  
Younger Adults ◽  
Attentional Processes ◽  
Age Related ◽  
Negative Stimuli

Abstract Older adults attend to more positive than negative content compared to younger adults; this “age-related positivity” effect is often thought of as a way older adults may be regulating their moods. However, attentional disengagement abilities decline with age, which may make positive looking more challenging for older adults in some cases. To evaluate links between early attentional processes and affect, 48 younger adult and 49 older adult participants reported levels of positive and negative affect on the Positive and Negative Affect Scale (PANAS) and completed a spatial cueing task evaluating attentional orienting and disengagement from emotional stimuli. Participants were tasked with responding to the location of a spatial target after seeing a cue (emotional image) that either appeared on the same (orienting) or opposite (disengagement) side of the screen. Multilevel modeling analyses were conducted using age and self-reported affect from the PANAS as predictors at level-2, and trial characteristics as predictors at level-1. Positive affect (PA) was unrelated to task performance for younger adults. Older adults reporting higher PA responded more slowly overall, and higher PA scores predicted similar response times to positive and negative stimuli on both trial types. Older adults reporting lower PA oriented attention more quickly to positive stimuli, but took longer to disengage from negative. These results suggest that there may be a relationship between the ability to flexibly disengage from negative content and PA for older, but not younger adults, and also highlight the importance of teasing apart specific attentional processes when evaluating positivity effects.

scholarly journals What affects the magnitude of age-related dual-task costs in working memory? The role of stimulus domain and access to semantic representations

2020 ◽  
pp. 174702182097074
Author(s):  
Agnieszka J Jaroslawska ◽  
Stephen Rhodes ◽  
Clément Belletier ◽  
Jason M Doherty ◽  
Nelson Cowan ◽  
...  
Keyword(s):  
Older Adults ◽  
Working Memory ◽  
Dual Task ◽  
Memory Task ◽  
Semantic Representations ◽  
Younger Adults ◽  
Task Effects ◽  
Concurrent Processing ◽  
Age Related

Although there is evidence that the effect of including a concurrent processing demand on the storage of information in working memory is disproportionately larger for older than younger adults, not all studies show this age-related impairment, and the critical factors responsible for any such impairment remain elusive. Here we assess whether domain overlap between storage and processing activities, and access to semantic representations, are important determinants of performance in a sample of younger and older adults ( N = 119). We developed four versions of a processing task by manipulating the type of stimuli involved (either verbal or non-verbal) and the decision that participants had to make about the stimuli presented on the screen. Participants either had to perform a spatial judgement, in deciding whether the verbal or non-verbal item was presented above or below the centre of the screen, or a semantic judgement, in deciding whether the stimulus refers to something living or not living. The memory task was serial-ordered recall of visually presented letters. The study revealed a large increase in age-related memory differences when concurrent processing was required. These differences were smaller when storage and processing activities both used verbal materials. Dual-task effects on processing were also disproportionate for older adults. Age differences in processing performance appeared larger for tasks requiring spatial decisions rather than semantic decisions. We discuss these findings in relation to three competing frameworks of working memory and the extant literature on cognitive ageing.

scholarly journals Catechol-O-methyltransferase (COMT) Genotype Affects Age-Related Changes in Plasticity in Working Memory: A Pilot Study

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Stephan Heinzel ◽  
Thomas G. Riemer ◽  
Stefanie Schulte ◽  
Johanna Onken ◽  
Andreas Heinz ◽  
...  
Keyword(s):  
Older Adults ◽  
Working Memory ◽  
Genetic Variation ◽  
Behavioral Plasticity ◽  
Memory Performance ◽  
Dopamine Metabolism ◽  
Comt Genotype ◽  
Younger Adults ◽  
Age Related ◽  
Age Related Changes

Objectives. Recent work suggests that a genetic variation associated with increased dopamine metabolism in the prefrontal cortex (catechol-O-methyltransferase Val158Met; COMT) amplifies age-related changes in working memory performance. Research on younger adults indicates that the influence of dopamine-related genetic polymorphisms on working memory performance increases when testing the cognitive limits through training. To date, this has not been studied in older adults.Method. Here we investigate the effect of COMT genotype on plasticity in working memory in a sample of 14 younger (aged 24–30 years) and 25 older (aged 60–75 years) healthy adults. Participants underwent adaptive training in then-back working memory task over 12 sessions under increasing difficulty conditions.Results. Both younger and older adults exhibited sizeable behavioral plasticity through training (P<.001), which was larger in younger as compared to older adults (P<.001). Age-related differences were qualified by an interaction with COMT genotype (P<.001), and this interaction was due to decreased behavioral plasticity in older adults carrying the Val/Val genotype, while there was no effect of genotype in younger adults.Discussion. Our findings indicate that age-related changes in plasticity in working memory are critically affected by genetic variation in prefrontal dopamine metabolism.

scholarly journals Older adults benefit from more widespread brain network integration during working memory

2019 ◽  
Author(s):  
C.A. Crowell ◽  
S.W. Davis ◽  
L. Beynel ◽  
L. Deng ◽  
D. Lakhlani ◽  
...  
Keyword(s):  
Older Adults ◽  
Working Memory ◽  
Network Connectivity ◽  
Task Demands ◽  
Global Network ◽  
Aging Brain ◽  
Network Integration ◽  
Younger Adults ◽  
Age Related ◽  
Cortical Regions

AbstractNeuroimaging evidence suggests that the aging brain relies on a more distributed set of cortical regions than younger adults in order to maintain successful levels of performance during demanding cognitive tasks. However, it remains unclear how task demands give rise to this age-related expansion in cortical networks. To investigate this issue, we used functional magnetic resonance imaging to measure univariate activity, network connectivity, and cognitive performance in younger and older adults during a working memory (WM) task. In the WM task investigated, participants hold letters online (maintenance) while reordering them alphabetically (manipulation). WM load was titrated to obtain four individualized difficulty levels. Network integration—defined as the ratio of within-versus between-network connectivity—was linked to individual differences in WM capacity. The study yielded three main findings. First, as task difficulty increased, network integration decreased in younger adults, whereas it increased in older adults. Second, age-related increases in network integration were driven by increases in right hemispheric connectivity to both left and right cortical regions, a finding that helps to reconcile extant theories of compensatory recruitment in aging to address the multivariate dynamics of global network functioning. Lastly, older adults with higher WM capacity demonstrated higher levels of network integration in the most difficult condition. These results shed light on the mechanisms of age-related network reorganization by suggesting that changes in network connectivity may act as an adaptive form of compensation, with older adults recruiting a more distributed cortical network as task demands increase.Significance statementOlder adults often activate brain regions not engaged by younger adults, but the circumstances under which this widespread network emerges are unclear. Here, we examined the effects of aging on network connectivity between task regions recruited during a working memory (WM) manipulation task, and the rest of the brain. We found an age-related increase in the more global network integration in older adults, and an association between this integration and working memory capacity in older adults. The findings are generally consistent with the compensatory interpretation of these effects.

Measuring the subjective cost of listening effort using a discounting task

2020 ◽  
Author(s):  
Drew Jordan McLaughlin ◽  
Todd Samuel Braver ◽  
Jonathan E. Peelle
Keyword(s):  
Older Adults ◽  
Decision Making ◽  
Working Memory ◽  
Economic Status ◽  
Monetary Reward ◽  
Future Research ◽  
Listening Effort ◽  
Younger Adults ◽  
Age Related ◽  
Economic Decision Making

Purpose: Objective measures of listening effort have been gaining prominence, as they provide metrics to quantify the difficulty of understanding speech under a variety of circumstances. A key challenge has been to develop paradigms that enable the complementary measurement of subjective listening effort in a quantitatively precise manner. In the present study, we introduce a novel decision-making paradigm to examine age-related and individual differences in subjective effort during listening.Method: Older and younger adults were presented with spoken sentences mixed with speech-shaped noise at multiple signal-to-noise ratios (SNRs). On each trial subjects were offered the choice between completing an easier listening trial (presented at +20 dB SNR) for a smaller monetary reward, or a harder listening trial (presented at either +4, 0, -4, -8, or -12 dB SNR) for a greater monetary reward. By varying the amount of the reward offered for the easier option, the subjective value of performing effortful listening trials at each SNR could be assessed. Results: Older adults discounted the value of effortful listening to a greater degree than young adults, opting to accept less money in order to avoid more difficult SNRs. Additionally, older adults with poorer hearing and smaller working memory capacities were more likely to choose easier trials; however, in younger adults, no relationship with hearing or working memory was found. Self-reported measures of economic status did not affect these relationships. Conclusion: These findings suggest that subjective listening effort depends on factors including, but not necessarily limited to, hearing and working memory. Additionally, this study demonstrates that economic decision-making paradigms can be a useful approach for assessing subjective listening effort, and may prove beneficial in future research.

scholarly journals Age-related and Genetic Modulation of Frontal Cortex Efficiency

2014 ◽  
Vol 26 (4) ◽  
pp. 746-754 ◽  
Author(s):  
Lars Nyberg ◽  
Micael Andersson ◽  
Karolina Kauppi ◽  
Anders Lundquist ◽  
Jonas Persson ◽  
...  
Keyword(s):  
Older Adults ◽  
Working Memory ◽  
Representative Sample ◽  
Task Demands ◽  
Bold Signal ◽  
Bold Response ◽  
Younger Adults ◽  
Age Related ◽  
Low Efficiency ◽  
Large Representative

The dorsolateral pFC (DLPFC) is a key region for working memory. It has been proposed that the DLPFC is dynamically recruited depending on task demands. By this view, high DLPFC recruitment for low-demanding tasks along with weak DLPFC upregulation at higher task demands reflects low efficiency. Here, the fMRI BOLD signal during working memory maintenance and manipulation was examined in relation to aging and catechol-O-methyltransferase (COMT) Val158Met status in a large representative sample (n = 287). The efficiency hypothesis predicts a weaker DLPFC response during manipulation, along with a stronger response during maintenance for older adults and COMT Val carriers compared with younger adults and COMT Met carriers. Consistent with the hypothesis, younger adults and met carriers showed maximal DLPFC BOLD response during manipulation, whereas older adults and val carriers displayed elevated DLPFC responses during the less demanding maintenance condition. The observed inverted relations support a link between dopamine and DLPFC efficiency.

scholarly journals Strategic prioritisation enhances young and older adults’ visual feature binding in working memory

2020 ◽  
pp. 174702182096071
Author(s):  
Richard J Allen ◽  
Amy L Atkinson ◽  
Louise A Brown Nicholls
Keyword(s):  
Older Adults ◽  
Working Memory ◽  
Serial Position ◽  
Visual Working Memory ◽  
Memory Performance ◽  
Feature Binding ◽  
Younger Adults ◽  
Age Related ◽  
Presentation Time ◽  
Benefits And Costs

Visual working memory for features and bindings is susceptible to age-related decline. Two experiments were used to examine whether older adults are able to strategically prioritise more valuable information in working memory and whether this could reduce age-related impairments. Younger (18–33 years) and older (60–90 years) adults were presented with coloured shapes and, following a brief delay, asked to recall the feature that had accompanied the probe item. In Experiment 1, participants were either asked to prioritise a more valuable object in the array (serial position 1, 2, or 3) or to treat them all equally. Older adults exhibited worse overall memory performance but were as able as younger adults to prioritise objects. In both groups, this ability was particularly apparent at the middle serial position. Experiment 2 then explored whether younger and older adults’ prioritisation is affected by presentation time. Replicating Experiment 1, older adults were able to prioritise the more valuable object in working memory, showing equivalent benefits and costs as younger adults. However, processing speed, as indexed by presentation time, was shown not to limit strategic prioritisation in either age group. Taken together, these findings demonstrate that, although older adults have poorer visual working memory overall, the ability to strategically direct attention to more valuable items in working memory is preserved across ageing.

scholarly journals EFFECTS OF BILINGUALISM ON INHIBITORY CONTROL AND WORKING MEMORY: A STUDY WITH EARLY AND LATE BILINGUALS

Gragoatá ◽  
2015 ◽  
Vol 20 (38) ◽  
Author(s):  
Rossana Kramer ◽  
Mailce Borges Mota
Keyword(s):  
Working Memory ◽  
Inhibitory Control ◽  
Executive Control ◽  
Memory Span ◽  
Dense Body ◽  
Brazilian Portuguese ◽  
Younger Adults ◽  
Age Related ◽  
Bilingual Group ◽  
Late Bilinguals

A dense body of research shows that cognitive functions change with age. More recently, studies have provided evidence that bilingualism aids in offsetting age-related losses in executive function (Bialystok, Craik, Klein & Viswanathan, 2004; Salvatierra, 2010). The present study investigates the performances of early bilinguals (Brazilian Portuguese/Hunsrückisch), late bilinguals (Brazilian Portuguese/English), and monolinguals (Brazilian Portuguese) on executive control and working memory tasks. Participants (N = 104) performed an executive control task (Simon) and a working memory (Alpha Span) task. Statistical analyses showed significant age-related effects on executive functions: younger adults outperformed older adults in the tasks. Furthermore, early bilinguals presented more efficient inhibitory processes showing smaller Simon effect costs and higher working memory span than monolinguals. As for the late bilingual group, their performance on inhibitory control tasks was significantly faster than that of their peer monolingual group. Results suggest that bilingualism, regardless of the context and age of acquisition, has an effect on inhibitory control and working memory. 

Sign in / Sign up

Export Citation Format

Share Document