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Memory (Hove, England) Sep 2023Recalling personal past events and imagining personal future events are closely linked, yet also show differences. It has been claimed that episodic future thinking... (Meta-Analysis)
Meta-Analysis Review
Recalling personal past events and imagining personal future events are closely linked, yet also show differences. It has been claimed that episodic future thinking produces stronger intensity of in-the-moment affect than does recalling episodic memories [Schubert, T., Eloo, R., Scharfen, J., & Morina, N. (2020). How imagining personal future scenarios influences affect: Systematic review and meta-analysis. , , 101811. https://doi.org/10.1016/j.cpr.2019.101811]. In contrast, the literature indicates that memories are experienced more vividly than are episodic future thoughts, a quality that would be expected to produce a stronger rather than a weaker affective response. In this systematic review and meta-analysis, we examined (a) the intensity of affect, (b) the vividness and (c) the valence of emotion experienced in response to remembering personal past events compared to imagining personal future events. Sixteen studies with a combined sample of 1735 met criteria for inclusion. Remembered past events were experienced more vividly than imagined future events but there was no difference between the two types of representations on emotional intensity. Imagined future events were associated with more positive emotion than memories. Future research could examine factors responsible for the equivalent strength of emotional response in memories and future-thinking despite their differences in vividness.
Topics: Humans; Memory, Episodic; Imagination; Mental Recall; Emotions; Imagery, Psychotherapy
PubMed: 37482699
DOI: 10.1080/09658211.2023.2224609 -
The International Journal of Eating... Jan 2022Research investigating the effects of COVID-19 on eating disorders is growing rapidly. A comprehensive evaluation of this literature is needed to identify key findings... (Review)
Review
OBJECTIVE
Research investigating the effects of COVID-19 on eating disorders is growing rapidly. A comprehensive evaluation of this literature is needed to identify key findings and evidence gaps to better inform policy decisions related to the management of eating disorders during and after this crisis. We conducted a systematic scoping review synthesizing and appraising this literature.
METHOD
Empirical research on COVID-19 impacts on eating disorder severity, prevalence, and demand for treatment was searched. No sample restrictions were applied. Findings (n = 70 studies) were synthesized across six themes: (a) suspected eating disorder cases during COVID-19; (b) perceived pandemic impacts on symptoms; (c) symptom severity pre versus during the pandemic; (d) pandemic-related correlates of symptom severity; (e) impacts on carers/parents; and (f) treatment experiences during COVID-19.
RESULTS
Pandemic impacts on rates of probable eating disorders, symptom deterioration, and general mental health varied substantially. Symptom escalation and mental health worsening during-and due to-the pandemic were commonly reported, and those most susceptible included confirmed eating disorder cases, at-risk populations (young women, athletes, parent/carers), and individuals highly anxious or fearful of COVID-19. Evidence emerged for increased demand for specialist eating disorder services during the pandemic. The forced transition to online treatment was challenging for many, yet telehealth alternatives seemed feasible and effective.
DISCUSSION
Evidence for COVID-19 effects is mostly limited to participant self-report or retrospective recall, cross-sectional and descriptive studies, and samples of convenience. Several novel pathways for future research that aim to better understand, monitor, and support those negatively affected by the pandemic are formulated.
Topics: COVID-19; Cross-Sectional Studies; Feeding and Eating Disorders; Female; Humans; Retrospective Studies; SARS-CoV-2
PubMed: 34773665
DOI: 10.1002/eat.23640 -
Scientific Reports Sep 2023A complex pattern of preservation and deterioration in metacognition in aging is found, especially regarding predicting future memory retrieval (i.e.,... (Meta-Analysis)
Meta-Analysis
A complex pattern of preservation and deterioration in metacognition in aging is found, especially regarding predicting future memory retrieval (i.e., feeling-of-knowing, FOK). While semantic FOK (sFOK) is preserved with age, studies on episodic tasks (eFOK) produce equivocal findings. We present a meta-analysis of 20 studies on eFOK and sFOK, analyzing the difference in metacognitive sensitivity between 922 younger and 966 older adults, taking into account the difference in memory performance. The sFOK studies yielded no overall age effect (8 effects, g = -0.10 [-0.29, 0.10]). However, we found a reliable age-group difference on eFOK (22 effects, g = 0.53 [0.28, 0.78]), which was moderated when considering recognition performance. Moreover, using aggregated data of 134 young and 235 older adults from published and unpublished studies from our lab, we investigated memory performance as an explanation of the eFOK deficit. We show that older adults are less metacognitively sensitive than younger adults for eFOKs which is, at least partly, due to the age-related memory decline. We highlight two non-exclusive explanations: a recollection deficit at play in the first and second order tasks, and a confound between first order performance and the measure used to assess metacognitive sensitivity.
Topics: Semantics; Mental Recall; Judgment; Recognition, Psychology; Memory, Episodic
PubMed: 37777585
DOI: 10.1038/s41598-023-36251-9 -
Psychological Bulletin 2022The enactment effect is the phenomenon that physically performing an action represented by a word or phrase (e.g., clap, clap your hands) results in better memory than... (Meta-Analysis)
Meta-Analysis
The enactment effect is the phenomenon that physically performing an action represented by a word or phrase (e.g., clap, clap your hands) results in better memory than does simply reading it. We examined data from three different methodological approaches to provide a comprehensive review of the enactment effect across 145 behavioral, 7 neuroimaging, and 31 neurological patient studies. Boosts in memory performance following execution of a physical action were compared to those produced by reading words or phrases, by watching an experimenter perform actions, or by engaging in self-generated imagery. Across the behavioral studies, we employed random-effects meta-regression with robust variance estimation (RVE) to reveal an average enactment effect size of = 1.23. Further meta-analyses revealed that variations in study design and comparison task reliably influence the size of the enactment effect, whereas four other experiment factors-test format, learning instruction type, retention interval, and the presence of objects during encoding-likely do not influence the effect. Neuroimaging studies demonstrated enactment-related activation to be prevalent in the motor cortex and inferior parietal lobule. Patient studies indicated that, regardless of whether impairments of memory (e.g., Alzheimer's) or of motor capability (e.g., Parkinson's) were present, patients were able to benefit from enactment. The findings of this systematic review and meta-analysis highlight two components accounting for the memory benefit from enactment: a primary mental contribution relating to planning the action and a secondary physical contribution of the action itself. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
Topics: Humans; Mental Recall; Memory; Learning; Reading; Neuroimaging
PubMed: 35878067
DOI: 10.1037/bul0000360 -
Translational Psychiatry Aug 2021Magnetic seizure therapy (MST) has established efficacy in the treatment of depression and a growing evidence base in the treatment of depression. We conducted the first... (Meta-Analysis)
Meta-Analysis Review
Comparative efficacy and cognitive function of magnetic seizure therapy vs. electroconvulsive therapy for major depressive disorder: a systematic review and meta-analysis.
Magnetic seizure therapy (MST) has established efficacy in the treatment of depression and a growing evidence base in the treatment of depression. We conducted the first systematic review and meta-analysis of the efficacy of MST in anti-depressive treatment and its impact on cognitive function (INPLASY registration number: INPLASY202170061). We searched for controlled trials published in English between 1 January 2001 to 31 December 2020 in PubMed, EMBASE, Cochrane Library, Web of Science, and PsycINFO databases. The evaluation process strictly followed the Cochrane bias risk assessment tool into the literature, and Meta-analysis was performed according to the Cochrane System Reviewer's Manual. Data from a total of 285 patients from 10 studies were retained in the quantitative synthesis. The results showed no significant difference between MST and ECT in the antidepressant effect (SDM -0.13 [-0.78;0.52]). Compared with ECT, MST showed shorter recovery time (MD -5.67 [-9.75; -1.60]) and reorientation time (MD -14.67 [-27.96; -1.41]); and MST showed less cognitive impairment on the immediate recall of words (SDM 0.80 [0.35;1.25]), delayed recall of words (SDM 0.99 [0.01;0.74]), visual-spatial immediate memory (SDM 0.51 [0.20;0.83]), visual-spatial delayed memory (SDM 0.57 [0.11;1.02]), and the verbal fluency (SDM 0.51 [0.20;0.83]). Our evidence-based study is the first meta-analysis on the efficacy of MST in anti-depressive treatment and its effect on cognitive function. It showed that the curative effect of MST in anti-depressive treatment is equivalent to that of ECT. Besides, depressive patients with MST benefit more from cognitive function compared with ECT.
Topics: Cognition; Depressive Disorder, Major; Electroconvulsive Therapy; Humans; Memory; Seizures
PubMed: 34420033
DOI: 10.1038/s41398-021-01560-y -
Trauma, Violence & Abuse Apr 2020Exposure to potentially traumatic events is a global health problem, especially in low- and middle-income countries. Assessments for symptoms resulting from trauma...
Exposure to potentially traumatic events is a global health problem, especially in low- and middle-income countries. Assessments for symptoms resulting from trauma exposure rely heavily on the Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5) criteria for post-traumatic stress disorder (PTSD), which may not be relevant in all regions of the globe. We examined posttrauma symptoms that were not limited to Western constructs of mental health (i.e., PTSD). In a systematic review, we searched nine databases to identify posttrauma symptoms arising in qualitative literature published before July 17, 2017. A total of 17,938 records were identified and 392 met inclusion criteria. The 392 studies represented data on 400 study populations from 71 different nationalities/ethnicities. The presence and frequency of posttrauma symptoms were examined across all regions. Fisher's exact tests were also conducted to compare frequencies in posttrauma symptoms across region and gender. Based on a weighted analysis across regions, a list of global posttrauma symptoms ( = 85) was compiled into an item bank. We found that the majority of DSM-5 PTSD symptoms were mentioned across regions (with the exception of and ). Across all regions, we also found a number of symptoms mentioned that were not part of PTSD and its associated features. Findings suggest that assessing posttrauma symptoms solely based on PTSD may be limiting to global populations. Research, policy, and practice implications are discussed.
Topics: Cross-Cultural Comparison; Diagnostic and Statistical Manual of Mental Disorders; Female; Global Health; Humans; Male; Poverty; Qualitative Research; Sex Distribution; Stress Disorders, Post-Traumatic
PubMed: 29699456
DOI: 10.1177/1524838018772293 -
The Australian and New Zealand Journal... Jun 2024Auditory hallucinations (hearing voices) have been associated with a range of altered cognitive functions, pertaining to signal detection, source-monitoring, memory,... (Review)
Review
OBJECTIVE
Auditory hallucinations (hearing voices) have been associated with a range of altered cognitive functions, pertaining to signal detection, source-monitoring, memory, inhibition and language processes. Yet, empirical results are inconsistent. Despite this, several theoretical models of auditory hallucinations persist, alongside increasing emphasis on the utility of a multidimensional framework. Thus, clarification of current evidence across the broad scope of proposed mechanisms is warranted.
METHOD
A systematic search of the Web of Science, PubMed and Scopus databases was conducted. Records were screened to confirm the use of an objective behavioural cognitive task, and valid measurement of hallucinations specific to the auditory modality.
RESULTS
Auditory hallucinations were primarily associated with difficulties in perceptual decision-making (i.e. reduced sensitivity/accuracy for signal-noise discrimination; liberal responding to ambiguity), source-monitoring (i.e. self-other and temporal context confusion), working memory and language function (i.e. reduced verbal fluency). Mixed or limited support was observed for perceptual feature discrimination, imagery vividness/illusion susceptibility, source-monitoring for stimulus form and spatial context, recognition and recall memory, executive functions (e.g. attention, inhibition), emotion processing and language comprehension/hemispheric organisation.
CONCLUSIONS
Findings were considered within predictive coding and self-monitoring frameworks. Of concern was the portion of studies which - despite offering auditory-hallucination-specific aims and inferences - employed modality-general measures, and/or diagnostic-based contrasts with psychologically healthy individuals. This review highlights disparities within the literature between theoretical conceptualisations of auditory hallucinations and the body of rigorous empirical evidence supporting such inferences. Future cognitive investigations, beyond the schizophrenia-spectrum, which explicitly define and measure the timeframe and sensory modality of hallucinations, are recommended.
Topics: Hallucinations; Humans; Cognition; Auditory Perception; Executive Function
PubMed: 38470085
DOI: 10.1177/00048674241235849 -
The International Journal of Behavioral... Jan 2021Reproducibility of FFQs measures the consistency of the same subject at different time points. We performed a meta-analysis to explore the reproducibility of FFQs and... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Reproducibility of FFQs measures the consistency of the same subject at different time points. We performed a meta-analysis to explore the reproducibility of FFQs and factors related to reproducibility of FFQs.
METHODS AND FINDINGS
A systematic literature review was performed before July 2020 using PubMed and Web of Science databases. Pooled intraclass and Spearman correlation coefficients (95% confidence interval) were calculated to assess the reproducibility of FFQs. Subgroup analyses based on characteristics of study populations, FFQs, or study design were performed to investigate factors related to the reproducibility of FFQs. A total of 123 studies comprising 20,542 participants were eligible for the meta-analysis. The pooled crude intraclass correlation coefficients ranged from 0.499 to 0.803 and 0.499 to 0.723 for macronutrients and micronutrients, respectively. Energy-adjusted intraclass correlation coefficients ranged from 0.420 to 0.803 and 0.507 to 0.712 for macronutrients and micronutrients, respectively. The pooled crude and energy-adjusted Spearman correlation coefficients ranged from 0.548 to 0.851 and 0.441 to 0.793, respectively, for macronutrients; and from 0.573 to 0.828 and 0.510 to 0.744, respectively, for micronutrients. FFQs with more food items, 12 months as dietary recall interval (compared to less than 12 months), and a shorter time period between repeated FFQs resulted in superior FFQ reproducibility.
CONCLUSIONS
In conclusion, FFQs with correlation coefficients greater than 0.5 for most nutrients may be considered a reliable tool to measure dietary intake. To develop FFQs with higher reproducibility, the number of food items and dietary recall interval should be taken into consideration.
Topics: Adolescent; Adult; Aged; Aged, 80 and over; Child; Diet; Diet Records; Diet Surveys; Eating; Energy Intake; Epidemiologic Studies; Female; Humans; Male; Mental Recall; Middle Aged; Nutritional Status; Reproducibility of Results; Research Design
PubMed: 33430897
DOI: 10.1186/s12966-020-01078-4 -
Annals of Emergency Medicine Mar 2020We conduct a systematic review with meta-analysis to provide an overview of the different manners of providing discharge instructions in the emergency department (ED)... (Meta-Analysis)
Meta-Analysis
STUDY OBJECTIVE
We conduct a systematic review with meta-analysis to provide an overview of the different manners of providing discharge instructions in the emergency department (ED) and to assess their effects on comprehension and recall of the 4 domains of discharge instructions: diagnosis, treatment, follow-up, and return instructions.
METHODS
We performed a systematic search in the PubMed, EMBASE, Web of Science Google Scholar, and Cochrane databases for studies published before March 15, 2018. A quality assessment of included articles was performed. Pooled proportions of correct recall by manner of providing discharge instructions were calculated.
RESULTS
A total of 1,842 articles were screened, and after selection, 51 articles were included. Of the 51 included studies, 12 used verbal discharge instructions only, 30 used written discharge instructions, and 7 used video. Correct recall of verbal, written, and video discharge instructions ranged from 8% to 94%, 23% to 92%, and 54% to 89%, respectively. Meta-analysis was performed on data of 1,460 patients who received verbal information only, 3,395 patients who received written information, and 459 patients who received video information. Pooled data showed differences in correct recall, with, on average, 47% for patients who received verbal information (95% confidence interval 32.2% to 61.7%), 58% for patients who received written information (95% confidence interval 44.2% to 71.2%), and 67% for patients who received video information (95% confidence interval 57.9% to 75.7%).
CONCLUSION
Communicating discharge instructions verbally to patients in the ED may not be sufficient. Although overall correct recall was not significantly higher, adding video or written information to discharge instructions showed promising results for ED patients.
Topics: Comprehension; Emergency Service, Hospital; Humans; Mental Recall; Patient Discharge; Patients
PubMed: 31439363
DOI: 10.1016/j.annemergmed.2019.06.008 -
Journal of Geriatric Psychiatry and... Sep 2021To investigate the association between testosterone levels and the risk of dementia and to assess the effectiveness of testosterone supplement treatment in patients with... (Meta-Analysis)
Meta-Analysis
BACKGROUND AND PURPOSE
To investigate the association between testosterone levels and the risk of dementia and to assess the effectiveness of testosterone supplement treatment in patients with cognitive impairment or dementia.
METHODS
We searched Pubmed, Cochrane Library, and EMBASE on September 30, 2019.
RESULTS
The risk factor portion of the review included 27 studies with 18 599 participants. Studies revealed inconsistent findings on the association between testosterone levels and the risk of all-cause dementia or Alzheimer disease (AD). The result from our meta-analysis showed an increased risk of all-cause dementia with decreasing total testosterone (total-T, 4572 participants, hazard ratio: 1.14, 95% CI: 1.04-1.26). Some studies also found an increased risk of AD with a lower level of total-T, free testosterone, and bioavailable testosterone. Testosterone supplement treatment may improve general cognitive function and motor response in the short term as measured by the Developmental Test of Visual-Motor Integration (mean difference [MD]: 4.4, 95% CI: 1.20-7.59) and the Mini-Mental State Examination (MD: 3.4, 95% CI: 0.83-5.97) and verbal memory as measured by story recall delay at 3 months (MD: 8.4, 95% CI: 0.49-16.3).
CONCLUSION
Lower levels of testosterone may be associated with an increased risk of all-cause dementia or AD. Testosterone supplement treatment may or may not improve general cognitive function in patients with cognitive impairment/AD.
Topics: Aging; Alzheimer Disease; Cognition; Cognitive Dysfunction; Humans; Male; Middle Aged; Testosterone
PubMed: 32602403
DOI: 10.1177/0891988720933351