scholarly journals The Relationship between Acute Glucocorticoid Levels and Hippocampal Function Depends upon Task Aversiveness and Memory Processing Stage

2005 ◽  
Vol 3 (1) ◽  
pp. nonlin.003.01.0 ◽  
Author(s):  
Cheryl D. Conrad
Keyword(s):  
Hippocampal Function ◽  
Processing Stage ◽  
Memory Processing ◽  
The Relationship

Studying the relationship between dreaming and sleep-dependent memory processes: Methodological challenges

2013 ◽  
Vol 36 (6) ◽  
pp. 628-629 ◽  
Author(s):  
Michael Schredl
Keyword(s):  
Dream Recall ◽  
Methodological Issues ◽  
Memory Processing ◽  
Memory Processes ◽  
Methodological Challenges ◽  
The Relationship

AbstractThe hypothesis that dreaming is involved in off-line memory processing is difficult to test because major methodological issues have to be addressed, such as dream recall and the effect of remembered dreams on memory. It would be fruitful – in addition to studying the ancient art of memory (AAOM) in a scanner – to study the dreams of persons who use AAOM regularly.

scholarly journals Pain and Cognition: A Narrative Review of the Effects of Chronic Pain on Neuropsychological Functioning

2020 ◽  
Author(s):  
Elizabeth Lichtman ◽  
Nissan Shlomo Frager
Keyword(s):  
Chronic Pain ◽  
Cognitive Processes ◽  
Neuropsychological Functioning ◽  
Neural Systems ◽  
Opioid Use ◽  
Memory Processing ◽  
Pain Location ◽  
Negative Effect ◽  
Pediatric Populations ◽  
The Relationship

It is widely established that chronic pain has a negative effect on neurocognitive functioning, in both adult and pediatric populations. These impairments are specifically strong in the areas of memory, processing speed, attention, and executive functions, and particularly among older patients and those with fibromyalgia. However, the exact mechanism explaining the relationship between cognition and pain has yet to be determined. Two main hypotheses are posited: 1) pain is distracting and removes focus from the task at hand, resulting in decreased cognitive performance, and 2) the neural systems involved in both pain and cognition are closely linked and may even modulate one another reciprocally.The relationship is complex in nature and it is important to consider factors that could be potential mediators or moderators of the relationship, such as age, sex, cognitive load, fatigue, opioid use, pain intensity, pain location, sleep disturbance, fatigue, tendencies toward somatization and/or somatic vigilance, and emotional state. These factors have all been shown to interact with cognition on some level, whether they are independently associated with cognitive dysfunction or, in tandem with pain, disrupt cognitive processes.

scholarly journals Effects of Tinnitus on Cognition and Depressive Symptoms Over Time

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 975-975
Author(s):  
Jennifer de Anda ◽  
Teresa Warren ◽  
Tyler Bell ◽  
William Kremen ◽  
Carol Franz
Keyword(s):  
Depressive Symptoms ◽  
Cognitive Performance ◽  
Mixed Models ◽  
Depression Scale ◽  
Epidemiological Studies ◽  
Memory Processing ◽  
Main Effect ◽  
The Relationship ◽  
Over Time

Abstract Evidence suggests links among tinnitus, depression, and cognition. We examined these associations over time. We hypothesized baseline tinnitus would predict poorer cognitive performance and more depressive symptoms an average of 11.4 years later. We examined 839 men at two timepoints (baseline age M=55.94; follow-up age M=67.56). At each time point participants responded yes/no if they had tinnitus. We created three tinnitus status groups – no tinnitus at either time, tinnitus at both, and no tinnitus at baseline but tinnitus at follow-up. At both time points we measured cognitive performance with tests of episodic memory, processing speed, executive function, and verbal fluency. Depressive symptoms were based on the Center for Epidemiological Studies Depression scale. There was no association between tinnitus and any measure of cognitive performance. Depressive symptoms declined from baseline to follow-up. In separate mixed models predicting depressive symptoms, there was a significant main effect for tinnitus status at baseline (p = .003) and follow-up (p < .001). Those with tinnitus at both times had significantly higher depressive symptoms than the “No tinnitus” group (p < .001). This association remained significant after accounting for baseline depressive symptoms (p = .011) at follow-up. Results did not support the hypothesis that tinnitus would be associated with poorer cognitive function. However, depressive symptoms declined among those with no tinnitus than the other groups. The relationship between tinnitus and depressive symptoms may have implications for future cognitive performance among older adults, given previous evidence that depressive symptoms are risk factors for cognitive decline.

scholarly journals Subjective and Perseverative Cognition Mediate the Relationship Between Sleep and Work Impairment

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 114-114
Author(s):  
Christina Mu ◽  
Brent Small ◽  
Soomi Lee
Keyword(s):  
Sleep Quality ◽  
Memory Processing ◽  
Multilevel Mediation ◽  
Work Impairment ◽  
Mediating Role ◽  
Perseverative Cognition ◽  
Ecological Momentary ◽  
The Relationship

Abstract The study examined the mediating role of subjective and perseverative cognition on sleep and work impairment. Sixty nurses completed a background survey and 14-days of ecological momentary assessments (EMA) and sleep actigraphy. Each day, participants evaluated their subjective cognition (mental sharpness, memory, processing speed), perseverative cognition (rumination) and work impairment (how much did you cut back on normal paid work, how much did the quality of your work suffer). Multiple sleep characteristics were measured by EMA and actigraphy. Multilevel mediation models adjusted for sociodemographics and work shift. At the between-person and within-person levels, there were mediated associations of sleep quality and sufficiency (but not actigraphy-measured sleep) with work impairment through subjective and perseverative cognition. Better sleep quality or higher sleep sufficiency were associated with better subjective and perseverative cognition, which, in turn, were associated with less work impairment.

scholarly journals Traumatic Events and Cognitive Function: Does Time When Traumatic Events Happen Matter?

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 428-428
Author(s):  
Gabriella Dong
Keyword(s):  
Cognitive Function ◽  
Old Age ◽  
Life Stage ◽  
Traumatic Events ◽  
Later Life ◽  
Future Research ◽  
Memory Processing ◽  
The Life Course ◽  
The Impact ◽  
The Relationship

Abstract People at different life stage may respond differently to traumatic events and result in different cognitive health. This study aims to examine the relationship between life stage at which one experiences traumatic events and cognitive function. The data were drawn from the 2017-2019 PINE study (N = 3,125). The time of life events happened was evaluated by childhood (<20), adulthood (20-59), and old age (60 and above). Cognition was measured through global cognition, episodic memory, working memory, processing speed, and MMSE. Linear regression was used. Individuals with the latest exposure to traumatic events at adulthood or old age have higher cognitive function than those without traumatic events over the life course. Exposure to traumatic events in middle or later life stimulates cognition, while trauma exposure in earlier life stage does not. Future research to understand the impact of traumatic events on health could consider the time when traumatic events happen

scholarly journals Cardiorespiratory Fitness Mediates Cognitive Performance in Chronic Heart Failure Patients and Heart Transplant Recipients

2020 ◽  
Vol 17 (22) ◽  
pp. 8591
Author(s):  
Florent Besnier ◽  
Béatrice Bérubé ◽  
Christine Gagnon ◽  
Miloudza Olmand ◽  
Paula Aver Bretanha Ribeiro ◽  
...  
Keyword(s):  
Heart Failure ◽  
Executive Function ◽  
Cognitive Performance ◽  
Processing Speed ◽  
Verbal Memory ◽  
Transplant Recipients ◽  
Memory Processing ◽  
Heart Failure Patients ◽  
Heart Transplant Recipients ◽  
The Relationship

We compared cognitive profiles in chronic heart failure patients (HF), heart transplant recipients (HT) and healthy controls (HC) and examined the relationship between cardiorespiratory fitness (V˙O2peak), peak cardiac output (COpeak) and cognitive performance. Stable HT patients (n = 11), HF patients (n = 11) and HC (n = 13) (61.5 ± 8.5 years) were recruited. Four cognitive composite scores targeting different cognitive functions were computed from neuropsychological tests: working memory, processing speed, executive functions and verbal memory. Processing speed and executive function scores were higher, which indicates lower performances in HF and HT compared to HC (p < 0.05). V˙O2peak and first ventilatory threshold (VT1) were lower in HF and HT vs. HC (p < 0.01). COpeak was lower in HF vs. HT and HC (p < 0.01). Processing speed, executive function and verbal memory performances were correlated with V˙O2peak, VT1 and peak cardiac hemodynamics (p < 0.05). Mediation analyses showed that V˙O2peak and VT1 mediated the relationship between group and processing speed and executive function performances in HF and HT. COpeak fully mediated executive function and processing speed performances in HF only. V˙O2peak and COpeak were related to cognitive performance in the entire sample. In addition, V˙O2peak and VT1 fully mediated the relationship between group and executive function and processing speed performances.

scholarly journals The relationship between Hippocampal asymmetry and working memory processing in combat-related PTSD – a monozygotic twin study

2012 ◽  
Vol 2 (1) ◽  
pp. 21 ◽  
Author(s):  
Timothy Hall ◽  
Cherrie Galletly ◽  
C Clark ◽  
Melinda Veltmeyer ◽  
Linda J Metzger ◽  
...  
Keyword(s):  
Working Memory ◽  
Twin Study ◽  
Monozygotic Twin ◽  
Memory Processing ◽  
The Relationship

Neuronal synchronization accompanying memory processing

2003 ◽  
Vol 26 (6) ◽  
pp. 759-760
Author(s):  
Sabine Weiss ◽  
Horst M. Mueller
Keyword(s):  
Memory Storage ◽  
Long Term Memory ◽  
Posterior Cortex ◽  
Memory Processing ◽  
Memory Processes ◽  
Target Article ◽  
Electrophysiological Findings ◽  
Relationship Of ◽  
The Relationship

In their target article, Ruchkin et al. propose sustained neuronal interaction of prefrontal and posterior cortex involved in memory-storage mechanisms with respect to electrophysiological findings on the relationship of short-term and long-term memory processes. We will evaluate this claim in light of recent evidence from our laboratory on EEG coherence analysis of memory processes accompanying language comprehension.

Evaluating the relationship between REM and memory consolidation: A need for scholarship and hypothesis testing

2000 ◽  
Vol 23 (6) ◽  
pp. 1007-1008 ◽  
Author(s):  
Carlyle Smith ◽  
Gregory M. Rose
Keyword(s):  
Hypothesis Testing ◽  
Memory Consolidation ◽  
Brain Activity ◽  
Memory Processing ◽  
Systematic Testing ◽  
Complete Synthesis ◽  
Testing Of Hypotheses ◽  
The Relationship ◽  
Rational Evaluation

The function of REM, or any other stage of sleep, can currently only be conjectured. A rational evaluation of the role of REM in memory processing requires systematic testing of hypotheses that are optimally derived from a complete synthesis of existing knowledge. Our view is that the large number of studies supporting a relationship between REM-related brain activity and memory is not easily explained away.[Vertes & Eastman]

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