scholarly journals Temporal dynamics of cognitive performance and anxiety across older adulthood.

2017 ◽  
Vol 32 (3) ◽  
pp. 278-292 ◽  
Author(s):  
Andrew J. Petkus ◽  
Chandra A. Reynolds ◽  
Julie Loebach Wetherell ◽  
William S. Kremen ◽  
Margaret Gatz
Keyword(s):  
Cognitive Performance ◽  
Temporal Dynamics ◽  
Older Adulthood

Sleep duration and quality are associated with cognitive performance in midlife and older adulthood

2017 ◽  
Vol 40 ◽  
pp. e258
Author(s):  
P. Peppard ◽  
J. Barnet ◽  
A. Rasmuson ◽  
D. Bliwise ◽  
E. Hagen
Keyword(s):  
Cognitive Performance ◽  
Sleep Duration ◽  
Older Adulthood

scholarly journals Temporal dynamics of endogenous attentional modulation without cue awareness

2018 ◽  
Author(s):  
Yuma Osako ◽  
Shota Murai ◽  
Jun Shimpaku ◽  
Kohta I. Kobayasi
Keyword(s):  
Cognitive Performance ◽  
Temporal Dynamics ◽  
Time Dependent ◽  
Logarithmic Scale ◽  
Dependent Manner ◽  
Attentional Modulation ◽  
Memory Array ◽  
Attentional Effect ◽  
Direction Awareness ◽  
Target Memory

ABSTRACTInvisible visual stimuli can regulate our broad cognitive performance in the pursuit of current goals. Endogenous spatial attention is an important modulator of cognitive performance, and it can be triggered by unconscious cues. However, how its effect changes with time remains unclear. Here, we show that endogenous attention was triggered by an arrow-cue whose direction participants reported being unaware of but which affected the task performance in a time-dependent manner. Participants were asked to remember the directions of eight Landolt c rings (target memory array) after arrow-cue presentation, which was designed to orient their attention to a certain c ring. Then, we applied a delay, ranging from 83 ms to 1000 ms, between the arrow-cue and the target memory array presentation (the possible delays were equally spaced on a logarithmic scale). The attentional effect was greater for the 83, 183, 250 and 333 ms delays than the other six possible delays. In contrast, its effect was maintained irrespective of the delay when the participants reported being aware of the cue direction. Thus, awareness of arrow-cue direction was necessary to maintain endogenous attentional modulation, and its modulation without arrow-cue direction awareness was limited in a time-dependent manner.

Power and temporal dynamics of alpha oscillations at rest differentiate cognitive performance involving sustained and phasic cognitive control

NeuroImage ◽  
2019 ◽  
Vol 188 ◽  
pp. 135-144 ◽  
Author(s):  
Keyvan Mahjoory ◽  
Elena Cesnaite ◽  
Friederike U. Hohlefeld ◽  
Arno Villringer ◽  
Vadim V. Nikulin
Keyword(s):  
Cognitive Control ◽  
Cognitive Performance ◽  
Temporal Dynamics ◽  
Alpha Oscillations

Daily cognitive complaints and engagement in older adulthood: Personality traits are more predictive than cognitive performance.

2020 ◽  
Vol 35 (3) ◽  
pp. 317-328 ◽  
Author(s):  
Patrick L. Hill ◽  
Damaris Aschwanden ◽  
Brennan R. Payne ◽  
Mathias Allemand
Keyword(s):  
Personality Traits ◽  
Cognitive Performance ◽  
Cognitive Complaints ◽  
Older Adulthood

scholarly journals Temporal dynamics of depression, cognitive performance and sleep in older persons with depressive symptoms and cognitive impairments: a series of eight single-subject studies

2021 ◽  
pp. 1-13
Author(s):  
Marij Zuidersma ◽  
Astrid Lugtenburg ◽  
Willeke van Zelst ◽  
Fransje E. Reesink ◽  
Peter Paul De Deyn ◽  
...  
Keyword(s):  
Working Memory ◽  
Depressive Symptoms ◽  
Cognitive Performance ◽  
Sleep Duration ◽  
Temporal Dynamics ◽  
Cognitive Impairments ◽  
Memory Performance ◽  
Temporal Association ◽  
Single Subject ◽  
Older Individuals

ABSTRACT Objectives: To investigate the presence, nature and direction of the daily temporal association between depressive symptoms, cognitive performance and sleep in older individuals. Design, setting, participants: Single-subject study design in eight older adults with cognitive impairments and depressive symptoms. Measurements: For 63 consecutive days, depressive symptoms, working memory performance and night-time sleep duration were daily assessed with an electronic diary and actigraphy. The temporal associations of depressive symptoms, working memory and total sleep time were evaluated for each participant separately with time-series analysis (vector autoregressive modeling). Results: For seven out of eight participants we found a temporal association between depressive symptoms and/or sleep and/or working memory performance. More depressive symptoms were preceded by longer sleep duration in one person (r = 0.39; p < .001), by longer or shorter sleep duration than usual in one other person (B = 0.49; p < .001), by worse working memory in one person (B = −0.45; p = .007), and by better working memory performance in one other person (B = 0.35; p = .009). Worse working memory performance was preceded by longer sleep duration (r = −.35; p = .005) in one person, by shorter or longer sleep duration in three other persons (B = −0.76; p = .005, B = −0.61; p < .001; B = −0.34; p = .002), and by more depressive symptoms in one person (B = −0.25; p = .009). Conclusion: The presence, nature and direction of the temporal associations between depressive symptoms, cognitive performance and sleep differed between individuals. Knowledge of personal temporal associations may be valuable for the development of personalized intervention strategies in order to maintain their health, quality of life, functional outcomes and independence.

Thimerosal Not Linked to Cognitive Performance

2007 ◽  
Vol 3 (10) ◽  
pp. 2
Author(s):  
ELIZABETH MECHCATIE
Keyword(s):  
Cognitive Performance
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