1
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Muto H, Suzuki M, Sekiyama K. Advanced aging effects on implicit motor imagery and its links to motor performance: An investigation via mental rotation of letters, hands, and feet. Front Aging Neurosci 2022; 14:1025667. [DOI: 10.3389/fnagi.2022.1025667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 10/28/2022] [Indexed: 11/18/2022] Open
Abstract
This study focuses on changes in implicit motor imagery during advanced aging and these changes’ co-occurrences with physical motor deficits. We administered a mental rotation (MR) task with letters, hands, and feet to 28 young adults (20–27 years) and to 71 older adults (60–87 years), and assessed motor skills (gait mobility and hand dexterity) and neuropsychological performance. Compared to young adults, older adults showed lower MR performance for all stimuli and stronger biomechanical constraint effects on both hand and foot rotation. Moreover, the foot biomechanical constraint effect continued to increase during late adulthood, and declines in hand and foot motor imagery emerged at earlier old ages than declines in visual imagery. These results first demonstrated distinct aging trajectories of hand motor imagery, foot motor imagery, and visual imagery. Exploratory partial correlation analysis for older adults showed positive associations of low-level perceptual-motor skills (Trail Making Test-A performance) with hand and foot MR performance and positive associations of mobility (Timed Up and Go test performance) with foot and letter MR performance. These associations exhibited somewhat different patterns from those of young adults and raised the possibility that age-related declines in motor (and visual) imagery co-occur with declines in motor functioning.
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Tanabe J, Amimoto K, Sakai K, Osaki S, Yoshihiro N, Kataoka T. Effects and Adaptation of Visual-Motor Illusion Using Different Visual Stimuli on Improving Ankle Joint Paralysis of Stroke Survivors—A Randomized Crossover Controlled Trial. Brain Sci 2022; 12:brainsci12091249. [PMID: 36138985 PMCID: PMC9496978 DOI: 10.3390/brainsci12091249] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/06/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Visual-motor illusion (VMI) is an intervention to induce kinesthetic sensation from visual stimuli. We aimed to compare the effects of VMI of different visual stimuli on the paralyzed side ankle joint of stroke hemiplegic patients (hemiplegic patients) and to clarify their indication. We applied two types of VMI images of ankle dorsiflexion: ankle dorsiflexion without resistance (standard VMI (S-VMI)) and maximum effort dorsiflexion with resistance (power VMI (P-VMI)). Twenty-two hemiplegic patients were divided into two groups: Group A, which received S-VMI first and P-VMI one week later (n = 11), and Group B, which received P-VMI first and S-VMI one week later (n = 11). Immediate effects were evaluated. Outcomes were the dorsiflexion angle and angular velocity, degree of sense of agency (SoA), and sense of ownership. Patient’s characteristics of cognitive flexibility were assessed using the Trail making test-B (TMT-B). Fugl-Meyer assessment and the Composite-Spasticity-Scale were also assessed. P-VMI was significantly higher than S-VMI in SoA and dorsiflexion angular velocity. Additionally, the degree of improvement in dorsiflexion function with P-VMI was related to TMT-B and degree of muscle tone. Therefore, P-VMI improves ankle function in hemiplegic patients more than S-VMI but should be performed with cognitive flexibility and degree of muscle tone in mind.
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Affiliation(s)
- Junpei Tanabe
- Department Physical Therapy, Hiroshima Cosmopolitan University, Hiroshima 731-3166, Japan
- Department Physical Therapy, Tokyo Metropolitan University, Tokyo 116-8551, Japan
- Correspondence: ; Tel.: +81-82-849-6883
| | - Kazu Amimoto
- Department Physical Therapy, Tokyo Metropolitan University, Tokyo 116-8551, Japan
| | - Katsuya Sakai
- Department of Physical Therapy, Chiba Prefectural University of Health Sciences, Chiba 260-0801, Japan
| | - Shinpei Osaki
- Department Physical Therapy, Tokyo Metropolitan University, Tokyo 116-8551, Japan
- Department of Rehabilitation, Kansai Electric Power Hospital, Osaka 553-0003, Japan
| | - Nao Yoshihiro
- Department Physical Therapy, Tokyo Metropolitan University, Tokyo 116-8551, Japan
- Department of Occupational Therapy, Kansai University of Health Sciences, Osaka 590-0482, Japan
| | - Tokuei Kataoka
- Department of Rehabilitation, Kurashiki Rehabilitation Hospital, Okayama 710-0834, Japan
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3
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Soshi T, Andersson M, Kawagoe T, Nishiguchi S, Yamada M, Otsuka Y, Nakai R, Abe N, Aslah A, Igasaki T, Sekiyama K. Prefrontal Plasticity after a 3-Month Exercise Intervention in Older Adults Relates to Enhanced Cognitive Performance. Cereb Cortex 2021; 31:4501-4517. [PMID: 34009242 DOI: 10.1093/cercor/bhab102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 01/24/2023] Open
Abstract
This study examined exercise intervention effects on older adults' brain structures and function. Brain data were analyzed from 47 healthy adults between 61 and 82 years of age who, in a previous study, showed cognitive improvement following a 3-month intervention. The participants were assigned to a motor exercise intervention group (n = 24), performing exercise training programs for a 12-week period, or a waiting control group (n = 23), abstaining from any exercise program. Structural analysis of the frontal cortex and hippocampus revealed increased gray matter volume and/or thickness in several prefrontal areas in the intervention group and reduced hippocampal gray matter volume in the control group. Importantly, the volume increase in the middle frontal sulcus in the intervention group was associated with a general cognitive improvement after the intervention. Functional analysis showed that the prefrontal functional connectivity during a working memory task differently changed in response to the intervention or waiting in the two groups. The functional connectivity decreased in the intervention group, whereas the corresponding connectivity increased in the control group, which was associated with maintaining cognitive performance. The current longitudinal findings indicate that short-term exercise intervention can induce prefrontal plasticity associated with cognitive performance in older adults.
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Affiliation(s)
- Takahiro Soshi
- Graduate School of Advanced Integrated Studies in Human Survivability, Kyoto University, Sakyo-ku, Kyoto 606-8306, Japan
| | | | - Toshikazu Kawagoe
- College of Contemporary Psychology, Rikkyo University, Niiza, Saitama 352-8558, Japan
| | - Shu Nishiguchi
- NTT DATA Institute of Management Consulting, Inc., Chiyoda-ku, Tokyo 102-0093, Japan
| | - Minoru Yamada
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Bunkyo-ku, Tokyo 112-0012, Japan
| | - Yuki Otsuka
- Kokoro Research Center, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Ryusuke Nakai
- Kokoro Research Center, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Nobuhito Abe
- Kokoro Research Center, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Adibah Aslah
- Department of Human and Environmental Informatics, Kumamoto University, Chuo-ku, kumamoto 860-8555, Japan
| | - Tomohiko Igasaki
- Department of Human and Environmental Informatics, Kumamoto University, Chuo-ku, kumamoto 860-8555, Japan
| | - Kaoru Sekiyama
- Graduate School of Advanced Integrated Studies in Human Survivability, Kyoto University, Sakyo-ku, Kyoto 606-8306, Japan
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Guo X, Yamashita M, Suzuki M, Ohsawa C, Asano K, Abe N, Soshi T, Sekiyama K. Musical instrument training program improves verbal memory and neural efficiency in novice older adults. Hum Brain Mapp 2020; 42:1359-1375. [PMID: 33617124 PMCID: PMC7927292 DOI: 10.1002/hbm.25298] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/10/2020] [Accepted: 11/16/2020] [Indexed: 11/08/2022] Open
Abstract
Previous studies indicate that musical instrument training may improve the cognitive function of older adults. However, little is known about the neural origins of training‐related improvement in cognitive function. Here, we assessed the effects of instrumental training program on cognitive functions and neural efficiency in musically naïve older adults (61–85 years old). Participants were assigned to either the intervention group, which received a 4‐month instrumental training program using keyboard harmonica, or a control group without any alternative training. Cognitive measurements and functional magnetic resonance imaging during visual working memory (VWM) task were administered before and after the intervention in both groups. Behavioral data revealed that the intervention group significantly improved memory performance on the test that measures verbal recall compared to the control group. Neuroimaging data revealed that brain activation in the right supplementary motor area, left precuneus, and bilateral posterior cingulate gyrus (PCgG) during the VWM task decreased after instrumental training only in the intervention group. Task‐related functional connectivity (FC) analysis revealed that the intervention group showed decreased FC between the right PCgG and left middle temporal gyrus, and between the left putamen and right superior temporal gyrus (lPu‐rSTG) during a VWM task after the intervention. Furthermore, a greater improvement in memory performance in the intervention group was associated with a larger reduction in lPu‐rSTG FC, which might be interpreted as improved neural efficiency. Our results indicate that the musical instrument training program may contribute to improvements in verbal memory and neural efficiency in novice older adults.
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Affiliation(s)
- Xia Guo
- Graduate School of Social and Cultural Sciences, Kumamoto University, Kumamoto, Japan.,Graduate School of Advanced Integrated Studies in Human Survivability, Kyoto University, Kyoto, Japan.,Japan Society for the Promotion of Science, Tokyo, Japan
| | - Masatoshi Yamashita
- Graduate School of Advanced Integrated Studies in Human Survivability, Kyoto University, Kyoto, Japan
| | - Maki Suzuki
- Graduate School of Advanced Integrated Studies in Human Survivability, Kyoto University, Kyoto, Japan.,Department of Behavioral Neurology and Neuropsychiatry, Osaka University United Graduate School of Child Development, Osaka, Japan
| | - Chie Ohsawa
- Kokoro Research Center, Kyoto University, Kyoto, Japan.,School of Music, Mukogawa Women's University, Hyogo, Japan
| | - Kohei Asano
- Kokoro Research Center, Kyoto University, Kyoto, Japan.,Faculty of Child Care and Education, Osaka University of Comprehensive Children Education, Osaka, Japan
| | - Nobuhito Abe
- Kokoro Research Center, Kyoto University, Kyoto, Japan
| | - Takahiro Soshi
- Graduate School of Advanced Integrated Studies in Human Survivability, Kyoto University, Kyoto, Japan
| | - Kaoru Sekiyama
- Graduate School of Advanced Integrated Studies in Human Survivability, Kyoto University, Kyoto, Japan
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Kawagoe T, Onoda K, Yamaguchi S. Subjective memory complaints are associated with altered resting-state functional connectivity but not structural atrophy. NEUROIMAGE-CLINICAL 2019; 21:101675. [PMID: 30642761 PMCID: PMC6413342 DOI: 10.1016/j.nicl.2019.101675] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 01/08/2019] [Accepted: 01/09/2019] [Indexed: 11/17/2022]
Abstract
Research indicates that a subtle cognitive decline, accompanied by pathological changes, occurs in individuals with subjective memory complaints (SMC). However, there is less evidence regarding the measurement of resting-state functional connectivity to detect subtle brain network alterations in neurodegenerative illnesses before cognitive change manifestation. We investigated the correlation between SMC and cognitive performance and explored functional and structural brain changes underlying SMC severity, using behavioral and brain imaging data-driven approaches. We observed that SMC was associated with depression but not with cognitive test scores, implying that SMC represent the “worried-well”; however, this model explains only 15% of the target variance. Using a conservative threshold, we observed connectivity related to SMC severity in the lingual gyrus, cuneus, anterior insula, and superior parietal lobule. Post-hoc analysis indicated that occipital and parietal functional connectivity increased with SMC severity. In contrast, volumetric alterations were not associated with SMC, even after applying a liberal threshold. Our findings suggest that altered resting-state functional connectivity in regions associated with SMC might reflect early compensatory changes that occur before cognitive and structural abnormalities develop. Subjective memory complaints are nearly independent from current cognition. Resting-state functional connectivity is related to subjective memory complaints. Brain structure has no association with subjective memory complaints.
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Affiliation(s)
- Toshikazu Kawagoe
- Department of Neurology, Faculty of Medicine, Shimane University, 89-1, Enya-cho, Izumo, Shimane 693-8501, Japan.
| | - Keiichi Onoda
- Department of Neurology, Faculty of Medicine, Shimane University, 89-1, Enya-cho, Izumo, Shimane 693-8501, Japan
| | - Shuhei Yamaguchi
- Department of Neurology, Faculty of Medicine, Shimane University, 89-1, Enya-cho, Izumo, Shimane 693-8501, Japan
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Suzuki M, Kawagoe T, Nishiguchi S, Abe N, Otsuka Y, Nakai R, Asano K, Yamada M, Yoshikawa S, Sekiyama K. Neural Correlates of Working Memory Maintenance in Advanced Aging: Evidence From fMRI. Front Aging Neurosci 2018; 10:358. [PMID: 30459595 PMCID: PMC6232505 DOI: 10.3389/fnagi.2018.00358] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 10/19/2018] [Indexed: 11/13/2022] Open
Abstract
Working memory (WM)-related brain activity is known to be modulated by aging; particularly, older adults demonstrate greater activity than young adults. However, it is still unclear whether the activity increase in older adults is also observed in advanced aging. The present functional magnetic resonance imaging (fMRI) study was designed to clarify the neural correlates of WM in advanced aging. Further, we set out to investigate in the case that adults of advanced age do show age-related increase in WM-related activity, what the functional significance of this over-recruitment might be. Two groups of older adults – “young–old” (61–70 years, n = 17) and “old–old” (77–82 years, n = 16) – were scanned while performing a visual WM task (the n-back task: 0-back and 1-back). WM effects (1-back > 0-back) common to both age groups were identified in several regions, including the bilateral dorsolateral prefrontal cortex (DLPFC), the inferior parietal cortex, and the insula. Greater WM effects in the old–old than in the young–old group were identified in the right caudal DLPFC. These results were replicated when we performed a separate analysis between two age groups with the same level of WM performance (the young–old vs. a “high-performing” subset of the old–old group). There were no regions where WM effects were greater in the young–old group than in the old–old group. Importantly, the magnitude of the over-recruitment WM effects positively correlated with WM performance in the old–old group, but not in the young–old group. The present findings suggest that cortical over-recruitment occurs in advanced old age, and that increased activity may serve a compensatory function in mediating WM performance.
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Affiliation(s)
- Maki Suzuki
- Division of Cognitive Psychology, Faculty of Letters, Kumamoto University, Kumamoto, Japan.,Department of Behavioral Neurology and Neuropsychiatry, United Graduate School of Child Development, Osaka University, Suita, Japan
| | - Toshikazu Kawagoe
- Division of Human and Social Sciences, Graduate School of Social and Cultural Sciences, Kumamoto University, Kumamoto, Japan
| | - Shu Nishiguchi
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Nobuhito Abe
- Kokoro Research Center, Kyoto University, Kyoto, Japan
| | - Yuki Otsuka
- Kokoro Research Center, Kyoto University, Kyoto, Japan
| | - Ryusuke Nakai
- Kokoro Research Center, Kyoto University, Kyoto, Japan
| | - Kohei Asano
- Kokoro Research Center, Kyoto University, Kyoto, Japan
| | - Minoru Yamada
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | | | - Kaoru Sekiyama
- Division of Cognitive Psychology, Faculty of Letters, Kumamoto University, Kumamoto, Japan.,Graduate School of Advanced Integrated Studies in Human Survivability, Kyoto University, Kyoto, Japan
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Bopp KL, Verhaeghen P. Aging and n-Back Performance: A Meta-Analysis. J Gerontol B Psychol Sci Soc Sci 2018; 75:229-240. [DOI: 10.1093/geronb/gby024] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 03/12/2018] [Indexed: 11/13/2022] Open
Affiliation(s)
- Kara L Bopp
- Wofford College, Spartanburg, South Carolina
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Guillery E, Mouraux A, Thonnard JL, Legrain V. Mind Your Grip: Even Usual Dexterous Manipulation Requires High Level Cognition. Front Behav Neurosci 2017; 11:220. [PMID: 29163091 PMCID: PMC5672141 DOI: 10.3389/fnbeh.2017.00220] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 10/23/2017] [Indexed: 11/13/2022] Open
Abstract
Simultaneous execution of cognitive and sensorimotor tasks is critical in daily life. Here, we examined whether dexterous manipulation, a highly habitual and seemingly automatic behavior, involves high order cognitive functions. Specifically, we explored the impact of reducing available cognitive resources on the performance of a precision grip-lift task in healthy participants of three age groups (18-30, 30-60 and 60-75 years). Participants performed a motor task in isolation (M), in combination with a low-load cognitive task (M + L), and in combination with a high-load cognitive task (M + H). The motor task consisted in grasping, lifting and holding an apparatus instrumented with force sensors to monitor motor task performance. In the cognitive task, a list of letters was shown briefly before the motor task. After completing the motor task, one letter of the list was shown, and participants reported the following letter of the list. In M + L, letters in the list followed the alphabetical order. In M + H, letters were presented in random order. Performing the high-load task thus required maintaining information in working memory. Temporal and dynamic parameters of grip and lift forces were compared across conditions. During the cognitive tasks, there was a significant alteration of movement initiation and a significant increase of grip force (GF) throughout the grip-lift task. There was no interaction with "age". Our results demonstrate that planning and the on-line control of dexterous manipulation is not an automatic behavior and, instead, that it interacts with high-level cognitive processes such as those involved in working memory.
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Affiliation(s)
- Erwan Guillery
- Institute of Neuroscience, Université catholique de Louvain, Brussels, Belgium
| | - André Mouraux
- Institute of Neuroscience, Université catholique de Louvain, Brussels, Belgium
| | - Jean-Louis Thonnard
- Institute of Neuroscience, Université catholique de Louvain, Brussels, Belgium.,Department of Physical and Rehabilitation-Medicine, Saint-Luc University Hospital, Université catholique de Louvain, Brussels, Belgium
| | - Valéry Legrain
- Institute of Neuroscience, Université catholique de Louvain, Brussels, Belgium.,Psychological Sciences Research Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
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Nishiguchi S, Yorozu A, Adachi D, Takahashi M, Aoyama T. Association between mild cognitive impairment and trajectory-based spatial parameters during timed up and go test using a laser range sensor. J Neuroeng Rehabil 2017; 14:78. [PMID: 28789676 PMCID: PMC5549311 DOI: 10.1186/s12984-017-0289-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 08/01/2017] [Indexed: 11/16/2022] Open
Abstract
Background The Timed Up and Go (TUG) test may be a useful tool to detect not only mobility impairment but also possible cognitive impairment. In this cross-sectional study, we used the TUG test to investigate the associations between trajectory-based spatial parameters measured by laser range sensor (LRS) and cognitive impairment in community-dwelling older adults. Methods The participants were 63 community-dwelling older adults (mean age, 73.0 ± 6.3 years). The trajectory-based spatial parameters during the TUG test were measured using an LRS. In each forward and backward phase, we calculated the minimum distance from the marker, the maximum distance from the x-axis (center line), the length of the trajectories, and the area of region surrounded by the trajectory of the center of gravity and the x-axis (center line). We measured mild cognitive impairment using the Mini-Mental State Examination score (26/27 was the cut-off score for defining mild cognitive impairment). Results Compared with participants with normal cognitive function, those with mild cognitive impairment exhibited the following trajectory-based spatial parameters: short minimum distance from the marker (p = 0.044), narrow area of center of gravity in the forward phase (p = 0.012), and a large forward/whole phase ratio of the area of the center of gravity (p = 0.026) during the TUG test. In multivariate logistic regression analyses, a short minimum distance from the marker (odds ratio [OR]: 0.82, 95% confidence interval [CI]: 0.69–0.98), narrow area of the center of gravity in the forward phase (OR: 0.01, 95% CI: 0.00–0.36), and large forward/whole phase ratio of the area of the center of gravity (OR: 0.94, 95% CI: 0.88–0.99) were independently associated with mild cognitive impairment. Conclusions In conclusion, our results indicate that some of the trajectory-based spatial parameters measured by LRS during the TUG test were independently associated with cognitive impairment in older adults. In particular, older adults with cognitive impairment exhibit shorter minimum distances from the marker and asymmetrical trajectories during the TUG test.
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Affiliation(s)
- Shu Nishiguchi
- Department of Physical Therapy, School of Health Sciences, Tokyo University of Technology, Tokyo, Japan
| | - Ayanori Yorozu
- Graduate School of Science and Technology, Keio University, Yokohama, Japan
| | - Daiki Adachi
- Department of Physical Therapy, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masaki Takahashi
- Department of System Design Engineering, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku Yokohama, 223-8522, Japan.
| | - Tomoki Aoyama
- Department of Physical Therapy, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Teramoto W, Honda K, Furuta K, Sekiyama K. Visuotactile interaction even in far sagittal space in older adults with decreased gait and balance functions. Exp Brain Res 2017; 235:2391-2405. [DOI: 10.1007/s00221-017-4975-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 04/29/2017] [Indexed: 10/19/2022]
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Kawagoe T, Suzuki M, Nishiguchi S, Abe N, Otsuka Y, Nakai R, Yamada M, Yoshikawa S, Sekiyama K. Brain activation during visual working memory correlates with behavioral mobility performance in older adults. Front Aging Neurosci 2015; 7:186. [PMID: 26483683 PMCID: PMC4586278 DOI: 10.3389/fnagi.2015.00186] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 09/14/2015] [Indexed: 12/16/2022] Open
Abstract
Functional mobility and cognitive function often decline with age. We previously found that functional mobility as measured by the Timed Up and Go Test (TUG) was associated with cognitive performance for visually-encoded (i.e., for location and face) working memory (WM) in older adults. This suggests a common neural basis between TUG and visual WM. To elucidate this relationship further, the present study aimed to examine the neural basis for the WM-mobility association. In accordance with the well-known neural compensation model in aging, we hypothesized that "attentional" brain activation for easy WM would increase in participants with lower mobility. The data from 32 healthy older adults were analyzed, including brain activation during easy WM tasks via functional Magnetic Resonance Imaging (fMRI) and mobility performance via both TUG and a simple walking test. WM performance was significantly correlated with TUG but not with simple walking. Some prefrontal brain activations during WM were negatively correlated with TUG performance, while positive correlations were found in subcortical structures including the thalamus, putamen and cerebellum. Moreover, activation of the subcortical regions was significantly correlated with WM performance, with less activation for lower WM performers. These results indicate that older adults with lower mobility used more cortical (frontal) and fewer subcortical resources for easy WM tasks. To date, the frontal compensation has been proposed separately in the motor and cognitive domains, which have been assumed to compensate for dysfunction of the other brain areas; however, such dysfunction was less clear in previous studies. The present study observed such dysfunction as degraded activation associated with lower performance, which was found in the subcortical regions. We conclude that a common dysfunction-compensation activation pattern is likely the neural basis for the association between visual WM and functional mobility.
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Affiliation(s)
- Toshikazu Kawagoe
- Graduate School of Social and Cultural Sciences, Kumamoto University Kumamoto, Japan ; Japan Society for the Promotion of Science Tokyo, Japan
| | - Maki Suzuki
- Faculty of Letters, Kumamoto University Kumamoto, Japan
| | - Shu Nishiguchi
- Japan Society for the Promotion of Science Tokyo, Japan ; Graduate School of Medicine, Kyoto University Kyoto, Japan
| | - Nobuhito Abe
- Kokoro Research Center, Kyoto University Kyoto, Japan
| | - Yuki Otsuka
- Kokoro Research Center, Kyoto University Kyoto, Japan
| | - Ryusuke Nakai
- Kokoro Research Center, Kyoto University Kyoto, Japan
| | - Minoru Yamada
- Graduate School of Medicine, Kyoto University Kyoto, Japan
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Nishiguchi S, Yamada M, Tanigawa T, Sekiyama K, Kawagoe T, Suzuki M, Yoshikawa S, Abe N, Otsuka Y, Nakai R, Aoyama T, Tsuboyama T. A 12-Week Physical and Cognitive Exercise Program Can Improve Cognitive Function and Neural Efficiency in Community-Dwelling Older Adults: A Randomized Controlled Trial. J Am Geriatr Soc 2015; 63:1355-63. [DOI: 10.1111/jgs.13481] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shu Nishiguchi
- Department of Physical Therapy, Human Health Sciences; Graduate School of Medicine; Kyoto University; Kyoto Japan
- Japan Society for the Promotion of Science; Tokyo Japan
| | - Minoru Yamada
- Graduate School of Comprehensive Human Sciences; University of Tsukuba; Tokyo Japan
| | - Takanori Tanigawa
- Department of Physical Therapy, Human Health Sciences; Graduate School of Medicine; Kyoto University; Kyoto Japan
| | - Kaoru Sekiyama
- Graduate School of Social and Cultural Sciences; Kumamoto University; Kumamoto Japan
| | - Toshikazu Kawagoe
- Japan Society for the Promotion of Science; Tokyo Japan
- Graduate School of Social and Cultural Sciences; Kumamoto University; Kumamoto Japan
| | - Maki Suzuki
- Graduate School of Social and Cultural Sciences; Kumamoto University; Kumamoto Japan
| | | | - Nobuhito Abe
- Kokoro Research Center; Kyoto University; Kyoto Japan
| | - Yuki Otsuka
- Kokoro Research Center; Kyoto University; Kyoto Japan
| | - Ryusuke Nakai
- Kokoro Research Center; Kyoto University; Kyoto Japan
| | - Tomoki Aoyama
- Department of Physical Therapy, Human Health Sciences; Graduate School of Medicine; Kyoto University; Kyoto Japan
| | - Tadao Tsuboyama
- Department of Physical Therapy, Human Health Sciences; Graduate School of Medicine; Kyoto University; Kyoto Japan
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