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Valerio A, Demarchi D, O’Flynn B, Motto Ros P, Tedesco S. Development of a Personalized Multiclass Classification Model to Detect Blood Pressure Variations Associated with Physical or Cognitive Workload. SENSORS (BASEL, SWITZERLAND) 2024; 24:3697. [PMID: 38894487 PMCID: PMC11175227 DOI: 10.3390/s24113697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 05/23/2024] [Accepted: 06/04/2024] [Indexed: 06/21/2024]
Abstract
Comprehending the regulatory mechanisms influencing blood pressure control is pivotal for continuous monitoring of this parameter. Implementing a personalized machine learning model, utilizing data-driven features, presents an opportunity to facilitate tracking blood pressure fluctuations in various conditions. In this work, data-driven photoplethysmograph features extracted from the brachial and digital arteries of 28 healthy subjects were used to feed a random forest classifier in an attempt to develop a system capable of tracking blood pressure. We evaluated the behavior of this latter classifier according to the different sizes of the training set and degrees of personalization used. Aggregated accuracy, precision, recall, and F1-score were equal to 95.1%, 95.2%, 95%, and 95.4% when 30% of a target subject's pulse waveforms were combined with five randomly selected source subjects available in the dataset. Experimental findings illustrated that incorporating a pre-training stage with data from different subjects made it viable to discern morphological distinctions in beat-to-beat pulse waveforms under conditions of cognitive or physical workload.
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Affiliation(s)
- Andrea Valerio
- Department of Electronics and Telecommunications, Politecnico di Torino, 10129 Torino, Italy;
| | - Danilo Demarchi
- Department of Electronics and Telecommunications, Politecnico di Torino, 10129 Torino, Italy;
| | - Brendan O’Flynn
- Tyndall National Institute, University College Cork, Lee Maltings Complex, Dyke Parade, T12R5CP Cork, Ireland; (B.O.); (S.T.)
| | - Paolo Motto Ros
- Department of Electronics and Telecommunications, Politecnico di Torino, 10129 Torino, Italy;
| | - Salvatore Tedesco
- Tyndall National Institute, University College Cork, Lee Maltings Complex, Dyke Parade, T12R5CP Cork, Ireland; (B.O.); (S.T.)
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Ruchkin V, Wallonius M, Odekvist E, Kim S, Isaksson J. Memory training with the method of loci for children and adolescents with ADHD-A feasibility study. APPLIED NEUROPSYCHOLOGY. CHILD 2024; 13:137-145. [PMID: 36344263 DOI: 10.1080/21622965.2022.2141120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The aim of this study was to investigate if training with the memory technique Method of Loci (MoL) is feasible for children and adolescents with ADHD. Twelve children (aged 9-17 years) with ADHD participated. Training with MoL was done using a mobile application, memorizing a sequence of 20-80 pictures, intended to be carried out five times per week for 4 weeks. Feasibility was assessed with pre- and post-intervention ratings, and with interviews after the training. Qualitative data were analyzed with content analysis. Those who trained with MoL performed better on memory test and reported fewer ADHD symptoms after completing the training, as compared to their baseline levels. All of these children would recommend the training to peers but the duration of training varied considerably. The participants and their parents reported that the MoL training was easy and fun to use, although lack of motivation, distractions in every-day life, and lack of routines created challenges. We conclude that training with MoL was considered feasible by most of the participants. Future research should try to make the intervention more acceptable by motivating the participants and limiting potential distractions and involving larger study groups and controls to study the efficacy of the training.
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Affiliation(s)
- Vladislav Ruchkin
- Child and Adolescent Psychiatry Unit, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
- Child Study Center, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Marwin Wallonius
- Child and Adolescent Psychiatry Unit, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Emma Odekvist
- Child and Adolescent Psychiatry Unit, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Sharmeen Kim
- Child and Adolescent Psychiatry Unit, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Johan Isaksson
- Child and Adolescent Psychiatry Unit, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
- Department of Women's and Children's Health, Center of Neurodevelopmental Disorders (KIND), Centre for Psychiatry Research, Karolinska Institutet & Stockholm Health Care Services, Stockholm, Sweden
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Ngetich R, Burleigh TL, Czakó A, Vékony T, Németh D, Demetrovics Z. Working memory performance in disordered gambling and gaming: A systematic review. Compr Psychiatry 2023; 126:152408. [PMID: 37573802 DOI: 10.1016/j.comppsych.2023.152408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/21/2023] [Accepted: 07/21/2023] [Indexed: 08/15/2023] Open
Abstract
BACKGROUND Converging evidence supports that gaming and gambling disorders are associated with executive dysfunction. The involvement of different components of executive functions (EF) in these forms of behavioural addiction is unclear. AIM In a systematic review, we aim to uncover the association between working memory (WM), a crucial component of EF, and disordered gaming and gambling. Note that, in the context of this review, gaming has been used synonymously with video gaming. METHODS Adhering to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA), we systematically searched for studies published from 2012 onwards. RESULTS The search yielded 6081 records after removing duplicates, from which 17 peer-reviewed journal articles were eligible for inclusion. The association between WM and problem or disordered gaming and gambling have been categorized separately to observe possible differences. Essentially, problem gaming or gambling, compared to disorder, presents lesser severity and clinical significance. The results demonstrate reduced auditory-verbal WM in individuals with gambling disorder. Decreased WM capacity was also associated with problem gambling, with a correlation between problem gambling severity and decreased WM capacity. Similarly, gaming disorder was associated with decreased WM. Specifically, gaming disorder patients had lower WM capacity than the healthy controls. CONCLUSION Working memory seems to be a significant predictor of gambling and gaming disorders. Therefore, holistic treatment approaches that incorporate cognitive techniques that could enhance working memory may significantly boost gambling and gaming disorders treatment success.
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Affiliation(s)
- Ronald Ngetich
- Centre of Excellence in Responsible Gaming, University of Gibraltar, Gibraltar, Gibraltar
| | - Tyrone L Burleigh
- Centre of Excellence in Responsible Gaming, University of Gibraltar, Gibraltar, Gibraltar
| | - Andrea Czakó
- Centre of Excellence in Responsible Gaming, University of Gibraltar, Gibraltar, Gibraltar; Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
| | - Teodóra Vékony
- INSERM, Université Claude Bernard Lyon 1, CNRS, Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, Bron, France
| | - Dezso Németh
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary; INSERM, Université Claude Bernard Lyon 1, CNRS, Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, Bron, France; Brain, Memory and Language Research Group, Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Budapest, Hungary
| | - Zsolt Demetrovics
- Centre of Excellence in Responsible Gaming, University of Gibraltar, Gibraltar, Gibraltar; Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary.
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Kulkarni M, Covey TJ. Examination of the temporal-spatial dynamics of working memory training-induced neuroplasticity. Brain Res 2023; 1798:148135. [DOI: 10.1016/j.brainres.2022.148135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/24/2022] [Accepted: 10/26/2022] [Indexed: 11/16/2022]
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Wang Q, Dai W, Xu S, Zhu S, Sui Y, Kan C, Shen Y, Zhu Y, Guo C, Wang T. Brain activation of the PFC during dual-task walking in stroke patients: A systematic review and meta-analysis of functional near-infrared spectroscopy studies. Front Neurosci 2023; 17:1111274. [PMID: 36875661 PMCID: PMC9980909 DOI: 10.3389/fnins.2023.1111274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 01/30/2023] [Indexed: 02/18/2023] Open
Abstract
Background Dual-task walking is a good paradigm to measure the walking ability of stroke patients in daily life. It allows for a better observation of brain activation under dual-task walking to assess the impact of the different tasks on the patient when combining with functional near-infrared spectroscopy (fNIRS). This review aims to summarize the cortical change of the prefrontal cortex (PFC) detected in single-task and dual-task walking in stroke patients. Methods Six databases (Medline, Embase, PubMed, Web of Science, CINAHL, and Cochrane Library) were systematically searched for relevant studies, from inception to August 2022. Studies that measured the brain activation of single-task and dual-task walking in stroke patients were included. The main outcome of the study was PFC activity measured using fNIRS. In addition, a subgroup analysis was also performed for study characteristics based on HbO to analyze the different effects of disease duration and the type of dual task. Results Ten articles were included in the final review, and nine articles were included in the quantitative meta-analysis. The primary analysis showed more significant PFC activation in stroke patients performing dual-task walking than single-task walking (SMD = 0.340, P = 0.02, I 2 = 7.853%, 95% CI = 0.054-0.626). The secondary analysis showed a significant difference in PFC activation when performing dual-task walking and single-task walking in chronic patients (SMD = 0.369, P = 0.038, I 2 = 13.692%, 95% CI = 0.020-0.717), but not in subacute patients (SMD = 0.203, P = 0.419, I 2 = 0%, 95% CI = -0.289-0.696). In addition, performing walking combining serial subtraction (SMD = 0.516, P < 0.001, I 2 = 0%, 95% CI = 0.239-0.794), obstacle crossing (SMD = 0.564, P = 0.002, I 2 = 0%, 95% CI = 0.205-0.903), or a verbal task (SMD = 0.654, P = 0.009, I 2 = 0%, 95% CI = 0.164-1.137) had more PFC activation than single-task walking, while performing the n-back task did not show significant differentiation (SMD = 0.203, P = 0.419, I 2 = 0%, 95% CI = -0.289-0.696). Conclusions Different dual-task paradigms produce different levels of dual-task interference in stroke patients with different disease durations, and it is important to choose the matching dual-task type in relation to the walking ability and cognitive ability of the patient, in order to better improve the assessment and training effects. Systematic review registration https://www.crd.york.ac.uk/prospero/, identifier: CRD42022356699.
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Affiliation(s)
- Qinglei Wang
- Department of Rehabilitation, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,School of Rehabilitation Medicine, Nanjing Medical University, Nanjing, China
| | - Wenjun Dai
- Department of Rehabilitation, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Sheng Xu
- Department of Rehabilitation, Changzhou Dean Hospital, Changzhou, China
| | - Shizhe Zhu
- Department of Rehabilitation, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,School of Rehabilitation Medicine, Nanjing Medical University, Nanjing, China
| | - Youxin Sui
- Department of Rehabilitation, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,School of Rehabilitation Medicine, Nanjing Medical University, Nanjing, China
| | - Chaojie Kan
- School of Rehabilitation Medicine, Nanjing Medical University, Nanjing, China.,Department of Rehabilitation, Changzhou Dean Hospital, Changzhou, China
| | - Ying Shen
- Department of Rehabilitation, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yi Zhu
- Department of Rehabilitation, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chuan Guo
- Department of Rehabilitation, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Tong Wang
- Department of Rehabilitation, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Pahor A, Seitz AR, Jaeggi SM. Near transfer to an unrelated N-back task mediates the effect of N-back working memory training on matrix reasoning. Nat Hum Behav 2022; 6:1243-1256. [PMID: 35726054 DOI: 10.1038/s41562-022-01384-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 05/10/2022] [Indexed: 02/04/2023]
Abstract
The extent to which working memory training improves performance on untrained tasks is highly controversial. Here we address this controversy by testing the hypothesis that far transfer may depend on near transfer using mediation models in three separate randomized controlled trials (RCTs). In all three RCTs, totalling 460 individuals, performance on untrained N-back tasks (near transfer) mediated transfer to Matrix Reasoning (representing far transfer) despite the lack of an intervention effect in RCTs 2 and 3. Untrained N-back performance also mediated transfer to a working memory composite, which showed a significant intervention effect (RCT 3). These findings support a model of N-back training in which transfer to untrained N-back tasks gates further transfer (at least in the case of working memory at the construct level) and Matrix Reasoning. This model can help adjudicate between the many studies and meta-analyses of working memory training that have provided mixed results but have not examined the relationship between near and far transfer on an individual-differences level.
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Affiliation(s)
- Anja Pahor
- School of Education, University of California, Irvine, Irvine, CA, USA. .,Department of Psychology, University of California, Riverside, Riverside, CA, USA. .,Department of Psychology, University of Maribor, Maribor, Slovenia.
| | - Aaron R Seitz
- Department of Psychology, University of California, Riverside, Riverside, CA, USA
| | - Susanne M Jaeggi
- School of Education, University of California, Irvine, Irvine, CA, USA.,Department of Cognitive Sciences, University of California, Irvine, Irvine, CA, USA
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Zhou Y, Wu D, Wang C, Sun K, Xu P, Wang Z, Xiao W. The effect of working memory training on situation awareness in a flight simulator. COGNITION, TECHNOLOGY & WORK (ONLINE) 2022; 24:667-674. [PMID: 35813562 PMCID: PMC9252550 DOI: 10.1007/s10111-022-00707-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
The close relationship between working memory and situation awareness (SA) has been confirmed and further empirical investigations are lacking. The main aim of this study was to demonstrate the feasibility of working memory training for improving SA. Thirty-eight participants completed a challenging flight scenario in a high-fidelity flight simulator and were randomized into a training group (n = 20) or a control group (n = 18). The training group engaged in an adaptive dual N-back task for 2 weeks, while the control group was given a negative control task. Three-dimensional situation awareness rating technique (3D-SART) scores and situation awareness global assessment technique (SAGAT) scores were recorded to evaluate pretest and posttest SA. The results showed that both situational understanding dimension scores in the 3D-SART and SAGAT scores were significantly increased from the pretest to the posttest in the training group, while the control group showed no significant differences. It was concluded that working memory training can effectively improve individuals' SA, which has important implication for future research.
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Affiliation(s)
- Yue Zhou
- School of Military Medical Psychology, Air Force Medical University, Xi’an, 710032 China
| | - Di Wu
- School of Military Medical Psychology, Air Force Medical University, Xi’an, 710032 China
| | - Chaoxian Wang
- School of Military Medical Psychology, Air Force Medical University, Xi’an, 710032 China
| | - Kewei Sun
- School of Military Medical Psychology, Air Force Medical University, Xi’an, 710032 China
| | - Pengbo Xu
- School of Military Medical Psychology, Air Force Medical University, Xi’an, 710032 China
| | - Ziwei Wang
- School of Military Medical Psychology, Air Force Medical University, Xi’an, 710032 China
| | - Wei Xiao
- School of Military Medical Psychology, Air Force Medical University, Xi’an, 710032 China
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Nichols ES, Erez J, Stojanoski B, Lyons KM, Witt ST, Mace CA, Khalid S, Owen AM. Longitudinal white matter changes associated with cognitive training. Hum Brain Mapp 2021; 42:4722-4739. [PMID: 34268814 PMCID: PMC8410562 DOI: 10.1002/hbm.25580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 06/11/2021] [Accepted: 06/22/2021] [Indexed: 12/30/2022] Open
Abstract
Improvements in behavior are known to be accompanied by both structural and functional changes in the brain. However, whether those changes lead to more general improvements, beyond the behavior being trained, remains a contentious issue. We investigated whether training on one of two cognitive tasks would lead to either near transfer (that is, improvements on a quantifiably similar task) or far transfer (that is, improvements on a quantifiably different task), and furthermore, if such changes did occur, what the underlying neural mechanisms might be. Healthy adults (n = 16, 15 females) trained on either a verbal inhibitory control task or a visuospatial working memory task for 4 weeks, over the course of which they received five diffusion tensor imaging scans. Two additional tasks served as measures of near and far transfer. Behaviorally, participants improved on the task that they trained on, but did not improve on cognitively similar tests (near transfer), nor cognitively dissimilar tests (far transfer). Extensive changes to white matter microstructure were observed, with verbal inhibitory control training leading to changes in a left-lateralized network of frontotemporal and occipitofrontal tracts, and visuospatial working memory training leading to changes in right-lateralized frontoparietal tracts. Very little overlap was observed in changes between the two training groups. On the basis of these results, we suggest that near and far transfer were not observed because the changes in white matter tracts associated with training on each task are almost entirely nonoverlapping with, and therefore afford no advantages for, the untrained tasks.
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Affiliation(s)
- Emily Sophia Nichols
- Faculty of Education, Western University, London, Ontario, Canada.,Brain and Mind Institute, Western University, London, Ontario, Canada
| | - Jonathan Erez
- Brain and Mind Institute, Western University, London, Ontario, Canada
| | - Bobby Stojanoski
- Brain and Mind Institute, Western University, London, Ontario, Canada
| | - Kathleen Michelle Lyons
- Brain and Mind Institute, Western University, London, Ontario, Canada.,Department of Psychology, Western University, London, Ontario, Canada
| | | | - Charlotte Anna Mace
- Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
| | - Sameera Khalid
- Neuroscience Program, Western University, London, Ontario, Canada
| | - Adrian Mark Owen
- Brain and Mind Institute, Western University, London, Ontario, Canada.,Department of Psychology, Western University, London, Ontario, Canada.,Department of Physiology and Pharmacology, Western University, London, Ontario, Canada
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