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Luo M, Pauly T, Broen T, Ashe MC, Murphy RA, Linden W, Madden KM, Gerstorf D, Hoppmann CA. Daily Affect and Daily Prospective Memory in People after Stroke and Their Partners: The Moderating Role of Resting Heart Rate. Gerontology 2023; 69:1245-1258. [PMID: 37604129 DOI: 10.1159/000533577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 07/31/2023] [Indexed: 08/23/2023] Open
Abstract
INTRODUCTION Experimental research suggests that affect may influence prospective memory performance, but real-life evidence on affect-prospective memory associations is limited. Moreover, most studies have examined the valence dimension of affect in understanding the influence of affect on cognitive performance in daily life, with insufficient consideration of the arousal dimension. To maximize ecological validity, the current study examined the relationships between daily affect and daily prospective memory using repeated daily assessments and the role of resting heart rate on these relationships. We examined both valence and arousal of daily affect by categorizing affect into four dimensions: high-arousal positive affect, low-arousal positive affect, high-arousal negative affect, and low-arousal negative affect. METHOD We examined existing data collected from community-dwelling couples, of which at least one partner had a stroke history. The analytic sample included 111 adults (Mage = 67.46 years, SD = 9.64; 50% women) who provided 1,274 days of data. Among the participants, 58 were living with the effects of a stroke and 53 were partners. Participants completed daily event-based prospective memory tasks (in morning and/or evening questionnaires), reported daily affect in the evening, and wore a wrist-based Fitbit device to monitor resting heart rate over 14 consecutive days. RESULTS Results from multilevel models show that, within persons, elevated high-arousal negative affect was associated with worse daily prospective memory performance. In addition, lower resting heart rate attenuated the inverse association between high-arousal negative affect and lowered prospective memory performance. We did not find significant associations of high- or low-arousal positive affect and low-arousal negative affect with daily prospective memory. DISCUSSION Our findings are in line with the resource allocation model and the cue-utilization hypothesis in that high-arousal negative affect is detrimental to daily prospective memory performance. Lower resting heart rate may buffer individuals' prospective memory performance from the influence of high-arousal negative affect. These findings are consistent with the neurovisceral integration model on heart-brain connections, highlighting the possibility that cardiovascular fitness may help maintain prospective memory into older adulthood.
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Affiliation(s)
- Minxia Luo
- University Research Priority Program (URPP) Dynamics of Healthy Aging, University of Zurich, Zurich, Switzerland
- Department of Psychology, University of Zurich, Zurich, Switzerland
| | - Theresa Pauly
- Department of Gerontology, Simon Fraser University, Vancouver, British Columbia, Canada
| | - Tiana Broen
- Department of Psychology, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Maureen C Ashe
- Department of Family Practice, The University of British Columbia, Vancouver, British Columbia, Canada
- Edwin S.H. Leong Centre for Healthy Aging, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Rachel A Murphy
- Cancer Control Research, BC Cancer Research Centre, Vancouver, British Columbia, Canada
- School of Population and Public Health, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Wolfgang Linden
- Department of Psychology, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Kenneth M Madden
- Center for Hip Health and Mobility, The University of British Columbia, Vancouver, British Columbia, Canada
- Department of Medicine, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Denis Gerstorf
- Department of Psychology, Humboldt University Berlin, Berlin, Germany
| | - Christiane A Hoppmann
- Department of Psychology, The University of British Columbia, Vancouver, British Columbia, Canada
- Edwin S.H. Leong Centre for Healthy Aging, The University of British Columbia, Vancouver, British Columbia, Canada
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Ren H, Gao S, Wang S, Wang J, Cheng Y, Wang Y, Wang Y. Effects of Dangshen Yuanzhi Powder on learning ability and gut microflora in rats with memory disorder. JOURNAL OF ETHNOPHARMACOLOGY 2022; 296:115410. [PMID: 35640741 DOI: 10.1016/j.jep.2022.115410] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 05/24/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Yuanzhi Powder is a commonly used traditional Chinese medical formulae for its potency in enhancing memory and learning. In clinical practice, Yuanzhi Powder is a classic formula in TCM to treat amnesia of the type "deficiency of Qi, turbid phlegm harasses the head and eyes, and stagnation of phlegm converting into the fire". Our previous study showed that Yuanzhi Power, used together with Codonopsis Radix (Dangshen Yuanzhi Power, DYP), could improve learning and memory ability in animals with memory disorder (MD) and its efficacy is superior or equivalent to that of the Yuanzhi Power. AIM OF STUDY This study aimed to explore the regulatory mechanism of DYP through the "bacteria-gut-brain axis". MATERIALS AND METHODS The SD rats were divided randomly into control, model, positive, DYP-L, and DYP-H groups. Except for the control group, the rats were intraperitoneally injected with D-Gal (400 mg/kg) and gavaged with aluminum chloride (200 mg/kg) every day for 50 days. The rats in the DYP group were gavaged with DYP (6.67 and 13.34 g/kg, respectively) from the 15th day, once a day. The rats in the positive group were similarly administrated with piracetam (0.5 g/kg). The rats' bodyweight was recorded from the 16th day. The learning and memory ability of animals was tested by Morris water maze. The levels of MCP-1, NF-L, NSE, and TNF-α in serum were determined by Elisa kit, while the histopathology of duodenum and colon tissues was examined by H & E staining. The diversity of intestinal flora was sequenced and analyzed. In order to reveal the role of intestinal flora in DYP treatment of MD, the intestinal flora composition and the correlation analysis of intestinal flora and the above biochemical indexes were investigated. The intestinal flora function and biological metabolic pathways were predicted and analyzed by the KEGG database. RESULTS The MD animals' learning and spatial memory ability decreased significantly, compared with the normal group, accompanied by weight increase and intestinal flora disorder. DYP can improve the learning and memory ability of MD animals, and its efficacy may exert through the following ways: (i) callback the abnormal biochemical indexes of MCP-1, NF-L, NSE, and TNF-α; (ii) decreasing the relative ratio of Firmicutes/Bacteroidetes and repairing the pathology of MD animal intestinal mucosa; and (iii) the regulation of DYP on biochemical blood indexes of MD animals was significantly correlated with the regulation of intestinal flora; (iv) DYP rats showed a strong correlation between cognitive ability improvement and bodyweight loss; (v) besides, DYP could also regulate the metabolic pathways of carbohydrate, amino acid, nucleotide, and energy by affecting related biological functions. CONCLUSIONS The results supported that DYP can improve MD animals' learning and memory ability by restoring the intestinal flora disorder and callback the abnormal biochemical indexes in serum, closely related to the "bacteria-gut-brain axis".
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Affiliation(s)
- Haiqin Ren
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Shouqin Gao
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Shihui Wang
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Jiamin Wang
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Yangang Cheng
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Yan Wang
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China
| | - Yingli Wang
- Institute of Pharmaceutical & Food Engineering, Shanxi University of Chinese Medicine, 121 Daxue Road, Yuci District, Jinzhong, 030619, China.
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Tse ZCK, Cao Y, Ogilvie JM, Chau BKH, Ng DHC, Shum DHK. Prospective Memory Training in Older Adults: A Systematic Review and Meta-Analysis. Neuropsychol Rev 2022; 33:347-372. [PMID: 35543836 PMCID: PMC10148783 DOI: 10.1007/s11065-022-09536-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 12/20/2021] [Indexed: 10/18/2022]
Abstract
Prospective memory (PM), which enables one to remember to carry out delayed intentions, is crucial for everyday functioning. PM commonly deteriorates upon cognitive decline in older adults, but several studies have shown that PM in older adults can be improved by training. The current study aimed to summarise this evidence by conducting a qualitative systematic analysis and quantitative meta-analysis of the effects of PM training in older adults, for which systematic searches were conducted across seven databases (Cochrane Library, Embase, PubMed, PsycInfo, Web of Science, CINAHL and Scopus). Forty-eight studies were included in the qualitative analysis, and 43% of the assessed PM training interventions showed positive gains in enhancing PM. However, the methodological quality varied across the studies, with 41% of the non-randomised control trials (non-RCTs) rated as having either serious or critical risk of bias. Therefore, only 29 RCTs were included in the subsequent quantitative meta-analysis. We found a significant and moderate immediate efficacy (Hedges' g = 0.54) of PM training in enhancing PM performance in older adults, but no significant long-term efficacy (Hedges' g = 0.21). Two subgroup analyses also revealed a robust training efficacy across the study population (i.e., healthy and clinical population) and the number of training sessions (i.e., single session and programme-based). Overall, this study provided positive evidence to support PM training in older adults. Further studies are warranted to explore the mechanisms by which PM training exerts its effects, and better-quality RCTs are needed to provide more robust evidence supporting our findings.
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Affiliation(s)
- Zita C K Tse
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - Yuan Cao
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, Hong Kong.,Research Institute for Smart Ageing, The Hong Kong Polytechnic University, Hong Kong, Hong Kong.,Mental Health Research Centre, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - James M Ogilvie
- Grififth Criminology Institute, Griffith University, Brisbane, Australia
| | - Bolton K H Chau
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, Hong Kong.,University Research Facility in Behavioral and Systems Neuroscience, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - Daphne H C Ng
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - David H K Shum
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, Hong Kong. .,Research Institute for Smart Ageing, The Hong Kong Polytechnic University, Hong Kong, Hong Kong.
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Hogan C, Fleming J, Cornwell P, Shum DHK. The impact of using implementation intentions as task instructions on prospective memory performance after stroke. Neuropsychol Rehabil 2021; 33:239-254. [PMID: 34753411 DOI: 10.1080/09602011.2021.1997766] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Prospective Memory (PM), the ability to remember to carry out intentions in the future, is often impaired after stroke. Little is known about rehabilitation of PM post-stroke with literature limited by small sample sizes and reliance on self-reported memory performance. Implementation intentions may make prospective remembering more automatic and follow a simple if-then structure (if X occurs, then I will do Y), focusing on the cue rather than the task. We aimed to investigate the effect of implementation intentions on PM post-stroke. Twenty-eight individuals with stroke and 27 controls were randomly allocated to a standard instruction or implementation intention condition and completed an assessment battery over two sessions. Implementation intention instructions were provided for PM tasks on the Delayed Message Task, Lexical Decision Prospective Memory Task (LDPMT), and the Virtual Reality Prospective Memory Shopping Task. The implementation intention groups performed better on all PM tasks compared to the standard instruction group, but no results reached statistical significance, likely due to the small sample size. In addition, the implementation intentions group monitored the time significantly more on the LDPMT than those in the standard instruction group.
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Affiliation(s)
- Christy Hogan
- School of Applied Psychology and The Hopkins Centre, Menzies Health Institute Queensland, Griffith University, Nathan, Australia
| | - Jennifer Fleming
- School of Health and Rehabilitation Sciences, University of Queensland, Saint Lucia, Australia
| | - Petrea Cornwell
- School of Health Sciences and Social Work, Menzies Health Institute Queensland, Griffith University, Nathan, Australia.,The Prince Charles Hospital Metro North Hospital and Health Service, Brisbane, Australia
| | - David H K Shum
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Hong Kong.,School of Applied Psychology, Griffith University, Nathan, Australia
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