1
|
Halliday DWR, Karr JE, Shahnazian D, Gordon I, Sanchez Escudero JP, MacDonald SWS, Macoun SJ, Hundza SR, Garcia-Barrera MA. Electrophysiological variability during tests of executive functioning: A comparison of athletes with and without concussion and sedentary control participants. APPLIED NEUROPSYCHOLOGY. ADULT 2023:1-10. [PMID: 37598380 DOI: 10.1080/23279095.2023.2247512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
OBJECTIVE Sport participation may benefit executive functioning (EF), but EF can also be adversely affected by concussion, which can occur during sport participation. Neural variability is an emerging proxy of brain health that indexes the brain's range of possible responses to incoming stimuli (i.e., dynamic range) and interconnectedness, but has yet to be characterized following concussion among athletes. This study examined whether neural variability was enhanced by athletic participation and attenuated by concussion. METHOD Seventy-seven participants (18-25 years-old) were classified as sedentary controls (n = 33), athletes with positive concussion history (n = 21), or athletes without concussion (n = 23). Participants completed tests of attention switching, response inhibition, and updating working memory while undergoing electroencephalography recordings to index neural variability. RESULTS Compared to sedentary controls and athletes without concussion, athletes with concussion exhibited a restricted whole-brain dynamic range of neural variability when completing a test of inhibitory control. There were no group differences observed for either the switching or working memory tasks. CONCLUSIONS A history of concussion was related to reduced dynamic range of neural activity during a task of response inhibition in young adult athletes. Neural variability may have value for evaluating brain health following concussion.
Collapse
Affiliation(s)
- Drew W R Halliday
- Department of Psychology, University of Victoria, Victoria, Canada
- CORTEX Laboratory, University of Victoria, Victoria, Canada
- Institute on Aging and Lifelong Health, University of Victoria, Victoria, Canada
| | - Justin E Karr
- Department of Psychology, University of Kentucky, Lexington, KY, USA
| | | | - Iris Gordon
- Department of Psychology, University of Victoria, Victoria, Canada
- CORTEX Laboratory, University of Victoria, Victoria, Canada
| | | | - Stuart W S MacDonald
- Department of Psychology, University of Victoria, Victoria, Canada
- Institute on Aging and Lifelong Health, University of Victoria, Victoria, Canada
| | - Sarah J Macoun
- Department of Psychology, University of Victoria, Victoria, Canada
| | - Sandra R Hundza
- Institute on Aging and Lifelong Health, University of Victoria, Victoria, Canada
- School of Exercise Science, Physical and Health Education, University of Victoria, Victoria, Canada
| | - Mauricio A Garcia-Barrera
- Department of Psychology, University of Victoria, Victoria, Canada
- CORTEX Laboratory, University of Victoria, Victoria, Canada
- Institute on Aging and Lifelong Health, University of Victoria, Victoria, Canada
| |
Collapse
|
2
|
Lucia S, Bianco V, Di Russo F. Specific effect of a cognitive-motor dual-task training on sport performance and brain processing associated with decision-making in semi-elite basketball players. PSYCHOLOGY OF SPORT AND EXERCISE 2023; 64:102302. [PMID: 37665802 DOI: 10.1016/j.psychsport.2022.102302] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 09/06/2023]
Abstract
OBJECTIVES In this study, we aimed at evaluating the effects of cognitive-motor dual-task training (CMDT) on sport-specific athletic performance and cognitive functions of semi-elite basketball players. Further, we investigated the CMDT effects on reactive brain processing by employing event-related potential (ERP) analysis. DESIGN A randomized controlled trial was conducted including 52 young semi-elite basketball players (28 females mean age 16.3 ± 1.1 years) who were randomly assigned into an experimental (Exp) group executing the CMDT and a control (Con) group performing standard motor training. METHOD Athletes' sport-specific performance was evaluated with dribbling tests before and after a five-week training. Cognitive performance was assessed by measuring speed and accuracy in a discrimination response task. Brain activity associated with sensory processing, selective attention, and decision-making was measured through the P1, N1, and P3 components. The CMDT consisted of simultaneous execution of dribbling exercises and cognitive tasks which were realized using interactive devices located around the athlete on the basket court. Data were submitted to a mixed analysis of variance. RESULTS Both groups showed some improvements from pre-to post-tests, but the Exp group improved basket-specific performance by 13% more than the Con group; in addition, the cognitive performance also improved more in the Exp group (25.8% in accuracy and 5.4% response speed). According to the EEG results, training did not affect sensory processing and attentional processing which were equally increased after both kinds of training; however, decision-making processes were specifically affected by the experimental training. CONCLUSIONS This study confirmed the effectiveness of the proposed CMDT protocol on both sport-specific and cognitive performance of basketball players and showed that the neural basis of these benefits may be mediated by more intense decisional processing allowing faster connection between sensory encoding and response execution.
Collapse
Affiliation(s)
- Stefania Lucia
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", 00135, Rome, Italy.
| | - Valentina Bianco
- Laboratory of Cognitive Neuroscience, Department of Languages and Literatures, Communication, Education and Society, University of Udine, 33100, Udine, Italy
| | - Francesco Di Russo
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", 00135, Rome, Italy; Santa Lucia Foundation IRCCS, 00179, Rome, Italy
| |
Collapse
|
3
|
Wu S, Chen A, Cao C, Ma S, Feng Y, Wang S, Song J, Xu G. Repeated subconcussive exposure alters low-frequency neural oscillation in memory retrieval processing. J Neurotrauma 2022; 39:398-410. [PMID: 35021889 DOI: 10.1089/neu.2021.0414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Repeated subconcussive head impacts are frequently experienced by athletes involved in competitive sports, such as boxing. The objective of the present study was to investigate the changes in working memory performance and memory retrieval-related neural oscillations in boxing athletes who experienced repeated subconcussive head impacts. Twenty-one boxing athletes (boxing group) and twenty-five matched controls (control group) completed a modified visual working memory task, and their continuous scalp electroencephalography (EEG) data were collected simultaneously. The behavioral measures and retrieval-related low-frequency neural oscillations were analyzed at each working memory set size in both groups. Subjects in the boxing group showed a reduced mean accuracy, diminished capacity estimates, and slower reaction time at demanding set sizes and a marginally increased intraindividual coefficient of variation (ICV) for overall set sizes. Additionally, decreased event-related frontal theta synchronization, parieto-occipital alpha desynchronization, and frontal low beta synchronization were observed in the boxing group, suggesting underlying working memory dysfunction for efficient neurocognitive resource employment, inhibition of distracting stimuli, and post-retrieval control in the boxing group. Moreover, a negative correlation was found between frontal beta synchronization and reaction time for most set sizes in both groups. The present study was the first to reveal the underlying working memory deficits caused by the cumulative effects of boxing-related subconcussive head impacts from the perspective of behavior and EEG time-frequency oscillations. Joint analysis of EEG low-frequency oscillations and the innovative task with multiple challenging load conditions may serve as a promising way to detect concealed deficiencies within working memory processing. Keywords: repeated subconcussive head impacts, working memory, modified Sternberg task, event-related desynchronization, event-related synchronization, boxing athletes.
Collapse
Affiliation(s)
- Shukai Wu
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China.,The General Hospital of Chinese PLA Central Theater Command, Wuhan, China.,The Second Affiliated Hospital of Fujian Medical University, neurosurgery, Quanzhou, Fujian, China;
| | - Aobo Chen
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China.,The General Hospital of Chinese PLA Central Theater Command, Wuhan, China;
| | - Chenglong Cao
- The First School of Clinical Medicine, Southern Medical University, Neurosurgery, Guangzhou, China.,Maastricht University Faculty of Psychology and Neuroscience, 396107, Maastricht, Limburg, Netherlands;
| | - Shenghui Ma
- Medical College of Wuhan University of Science and Technology, 481115, Wuhan, Hubei , China.,The General Hospital of Chinese PLA Central Theater Command, Wuhan, China;
| | - Yu Feng
- Medical College of Wuhan University of Science and Technology, 481115, Wuhan, Hubei , China.,The General Hospital of Chinese PLA Central Theater Command, Wuhan, China;
| | - Shuochen Wang
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China.,The General Hospital of Chinese PLA Central Theater Command, Wuhan, China;
| | - Jian Song
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China.,The General Hospital of Chinese PLA Central Theater Command, neurosurgery, Wuhan, China;
| | - Guozheng Xu
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China.,The General Hospital of Chinese PLA Central Theater Command, Wuhan, China;
| |
Collapse
|
4
|
Acid-Base Balance, Blood Gases Saturation, and Technical Tactical Skills in Kickboxing Bouts According to K1 Rules. BIOLOGY 2022; 11:biology11010065. [PMID: 35053063 PMCID: PMC8773011 DOI: 10.3390/biology11010065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/24/2021] [Accepted: 12/31/2021] [Indexed: 12/02/2022]
Abstract
Simple Summary The aim of our study was to analyze the changes in ABB after a three-round kickboxing fight and the level of technical and tactical skills presented during the fight. Fighting in kickboxing under K1 rules takes place with a high presence of anaerobic metabolism. Kickboxing athletes must have a good tolerance for metabolic acidosis and the ability to conduct an effective duel despite ABB disorders. Properly developed post-workout regeneration also plays an extremely important role. Abstract Background: Acid–base balance (ABB) is a major component of homeostasis, which is determined by the efficient functioning of many organs, including the lungs, kidneys, and liver, and the proper water and electrolyte exchange between these components. The efforts made during competitions by combat sports athletes such as kickboxers require a very good anaerobic capacity, which, as research has shown, can be improved by administering sodium bicarbonate. Combat sports are also characterized by an open task structure, which means that cognitive and executive functions must be maintained at an appropriate level during a fight. The aim of our study was to analyze the changes in ABB in capillary blood, measuring levels of H+, pCO2, pO2, HCO3−, BE and total molar CO2 concentration (TCO2), which were recorded 3 and 20 min after a three-round kickboxing bout, and the level of technical and tactical skills presented during the fight. Methods: The study involved 14 kickboxers with the highest skill level (champion level). Statistical comparison of mentioned variables recorded prior to and after a bout was done with the use of Friedman’s ANOVA. Results: 3 min after a bout, H+ and pO2 were higher by 41% and 11.9%, respectively, while pCO2, HCO3−, BE and TO2 were lower by 14.5%, 39.4%, 45.4% and 34.4%, respectively. Furthermore, 20 min after the bout all variables tended to normalization and they did not differ significantly compared to the baseline values. Scores in activeness of the attack significantly correlated (r = 0.64) with pre–post changes in TCO2. Conclusions: The disturbances in ABB and changes in blood oxygen and carbon dioxide saturation observed immediately after a bout indicate that anaerobic metabolism plays a large part in kickboxing fights. Anaerobic training should be included in strength and conditioning programs for kickboxers to prepare the athletes for the physiological requirements of sports combat.
Collapse
|
5
|
A preliminary investigation of corpus callosum subregion white matter vulnerability and relation to chronic outcome in boxers. Brain Imaging Behav 2021; 14:772-786. [PMID: 30565025 DOI: 10.1007/s11682-018-0018-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Microstructural neuropathology occurs in the corpus callosum (CC) after repetitive sports concussion in boxers and can be dose-dependent. However, the specificity and relation of CC changes to boxing exposure extent and post-career psychiatric and neuropsychological outcomes are largely unknown. Using deterministic diffusion tensor imaging (DTI) techniques, boxers and demographically-matched, noncontact sport athletes were compared to address literature gaps. Ten boxers and 9 comparison athletes between 26 and 59 years old (M = 44.63, SD = 9.24) completed neuropsychological testing and MRI. Quantitative DTI metrics were estimated for CC subregions. Group×Region interaction effects were observed on fractional anisotropy (FA; η2p ≥ .21). Follow-up indicated large effects of group (η2p ≥ .26) on splenium FA (boxers<comparisons) and genu mean diffusivity (MD; boxers>comparisons), but not radial diffusivity (RD). The group of boxers had moderately elevated number of psychiatric symptoms and reduced neuropsychological scores relative to the comparison group. In boxers, years sparring, professional bouts, and knockout history correlated strongly (r > |.40|) with DTI metrics and fine motor dexterity. In the comparison group, splenium FA correlated positively with psychiatric symptoms. In the boxer group, neuropsychological scores correlated with DTI metrics in all CC subregions. Results suggested relative vulnerability of the splenium and, to a lesser extent, the genu to chronic, repetitive head injury from boxing. Dose-dependent associations of professional boxing history extent with DTI white matter structure indices as well as fine motor dexterity were supported. Results indicated that symptoms of depression and executive dysfunction may provide the strongest indicators of global CC disruption from boxing.
Collapse
|
6
|
Lucci G, Pisotta I, Berchicci M, Di Russo F, Bonavita J, Scivoletto G, Spinelli D, Molinari M. Proactive Cortical Control in Spinal Cord Injury Subjects with Paraplegia. J Neurotrauma 2019; 36:3347-3355. [DOI: 10.1089/neu.2018.6307] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Giuliana Lucci
- Electrophysiology of Cognition Lab and Fondazione Santa Lucia IRCCS, Rome, Italy
- Department of Human Sciences, Guglielmo Marconi University, Rome, Italy
| | - Iolanda Pisotta
- SPInal REhabilitation Lab–SPIRE, Fondazione Santa Lucia IRCCS, Rome, Italy
| | - Marika Berchicci
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico,” Rome, Italy
| | - Francesco Di Russo
- Electrophysiology of Cognition Lab and Fondazione Santa Lucia IRCCS, Rome, Italy
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico,” Rome, Italy
| | - Jacopo Bonavita
- Spinal Unit, Montecatone Rehabilitation Institute, Imola (Bologna), Italy
| | - Giorgio Scivoletto
- SPInal REhabilitation Lab–SPIRE, Fondazione Santa Lucia IRCCS, Rome, Italy
| | - Donatella Spinelli
- Electrophysiology of Cognition Lab and Fondazione Santa Lucia IRCCS, Rome, Italy
- Department of Movement, Human and Health Sciences, University of Rome “Foro Italico,” Rome, Italy
| | - Marco Molinari
- SPInal REhabilitation Lab–SPIRE, Fondazione Santa Lucia IRCCS, Rome, Italy
| |
Collapse
|
7
|
Ruggiero F, Ferrucci R, Bocci T, Nigro M, Vergari M, Marceglia S, Barbieri S, Priori A. Spino-cerebellar tDCS modulates N100 components of the P300 event related potential. Neuropsychologia 2019; 135:107231. [PMID: 31628894 DOI: 10.1016/j.neuropsychologia.2019.107231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 10/02/2019] [Accepted: 10/11/2019] [Indexed: 01/01/2023]
Abstract
OBJECTIVE To evaluate the role of the cerebellum and spinal cord in cognitive processes, we assessed changes in event-related potentials (ERPs), before and after different combinations of spinal and cerebellar direct current stimulation (tDCS) in healthy subjects. METHOD We enrolled 37 volunteers (11 males and 26 females, aged 20-50 years), who were subsequently randomly assigned to one of four stimulation conditions: i) anodal cerebellar tDCS, with the reference electrode over the right shoulder; ii) anodal spinal tDCS, with the reference electrode over the right shoulder; iii) anodal spinal tDCS with cathodal cerebellar tDCS, and iv) sham stimulation. Stimulation intensity was set at 2 mA and delivered for 20 min. ERPs were assessed in an auditory oddball task before (T0) and 5 (T1) and 30 min (T2) after tDCS offset. RESULTS In condition iii, spino-cerebellar tDCS, the N100 component at T2 increased in amplitude by 60% (p = 0.019), whereas the sham stimulation left the N100 amplitude unchanged (p > 0.05). CONCLUSION The N100 wave reflects pre-attentive processes and correlates with arousal due to a specific stimuli and selective attention. Because spino-cerebellar tDCS induces electric fields in the brainstem, the facilitation of the N100 may be due to the modulation of the reticular formation. Regardless of the underlying mechanism, spino-cerebellar tDCS can help patients with deficits at the pre-attentive or selective attentional level.
Collapse
Affiliation(s)
- Fabiana Ruggiero
- Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neurophysiology Unit, Milan, Italy
| | - Roberta Ferrucci
- Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neurophysiology Unit, Milan, Italy; "Aldo Ravelli" Center for Neurotechnology and Experimental Brain Therapeutics, Dipartimento di Scienze della salute, Università degli Studi di Milano, Milan, Italy; III Neurology Clinic, ASST Santi Paolo e Carlo, Milan, Italy
| | - Tommaso Bocci
- "Aldo Ravelli" Center for Neurotechnology and Experimental Brain Therapeutics, Dipartimento di Scienze della salute, Università degli Studi di Milano, Milan, Italy; III Neurology Clinic, ASST Santi Paolo e Carlo, Milan, Italy
| | - Martina Nigro
- Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neurophysiology Unit, Milan, Italy
| | - Maurizio Vergari
- Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neurophysiology Unit, Milan, Italy
| | - Sara Marceglia
- Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neurophysiology Unit, Milan, Italy; Dipartimento di Ingegneria e Architettura, University of Trieste, Trieste, Italy
| | - Sergio Barbieri
- Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neurophysiology Unit, Milan, Italy
| | - Alberto Priori
- "Aldo Ravelli" Center for Neurotechnology and Experimental Brain Therapeutics, Dipartimento di Scienze della salute, Università degli Studi di Milano, Milan, Italy; III Neurology Clinic, ASST Santi Paolo e Carlo, Milan, Italy.
| |
Collapse
|
8
|
Magnuson JR, Iarocci G, Doesburg SM, Moreno S. Increased Intra-Subject Variability of Reaction Times and Single-Trial Event-Related Potential Components in Children With Autism Spectrum Disorder. Autism Res 2019; 13:221-229. [PMID: 31566907 DOI: 10.1002/aur.2210] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/19/2019] [Accepted: 09/04/2019] [Indexed: 01/30/2023]
Abstract
Autism spectrum disorder (ASD) is an increasingly common neurodevelopmental disorder that affects 1 in 59 children. The cognitive profiles of individuals with ASD are varied, and the neurophysiological underpinnings of these developmental difficulties are unclear. While many studies have focused on overall group differences in the amplitude or latency of event related potential (ERP) responses, recent research suggests that increased intra-subject neural variability may also be a reliable indicator of atypical brain function in ASD. This study aimed to identify behavioral and neural variability responses during an emotional inhibitory control task in children with ASD compared to typically developing (TD) children. Children with ASD showed increased variability in response to both inhibitory and emotional stimuli, evidenced by greater reaction time variability and single-trial ERP variability of N200 and N170 amplitudes and/or latencies compared to TD children. These results suggest that the physiological basis of ASD may be more accurately explained by increased intra-subject variability, in addition to characteristic increases or decreases in the amplitude or latency of neural responses. Autism Res 2020, 13:221-229. © 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: The cognitive functions including memory, attention, executive functions, and perception, of individuals with ASD are varied, and the physiological underpinnings of these profiles are unclear. In this study, children with ASD showed increased intra-subject neural and behavioral variability in response to an emotional inhibitory control task compared to typically developing children. These results suggest that the physiological basis of ASD may also be explained by increased behavioral and neural variability in people with ASD, rather than simply characteristic increases or decreases in averaged brain responses.
Collapse
Affiliation(s)
- Justine R Magnuson
- Department of Kinesiology, University of British Columbia Okanagan, Kelowna, British Columbia, Canada
| | - Grace Iarocci
- Department of Psychology, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Sam M Doesburg
- Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Sylvain Moreno
- School of Interactive Arts and Technology, Simon Fraser University, Burnaby, British Columbia, Canada
| |
Collapse
|
9
|
Shen IH, Lin YJ, Chen CL, Liao CC. Neural Correlates of Response Inhibition and Error Processing in Individuals with Mild Traumatic Brain Injury: An Event-Related Potential Study. J Neurotrauma 2019; 37:115-124. [PMID: 31317830 DOI: 10.1089/neu.2018.6122] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Individuals with a mild traumatic brain injury (mTBI) often have executive control deficits; however, the underlying neural mechanisms of such deficits are yet to be clarified. Inhibitory control and cognitive monitoring are two fundamental aspects of executive control processes. This study investigated the executive control of mTBI by using the Stop-signal task. Eighteen adults with mTBI and 18 age-, sex-, and education level-matched controls were recruited. Behavioral performance and event-related potential correlates of response inhibition and error processing were compared between groups. The mTBI group tended to have a lower probability of inhibition and a longer stop signal reaction time. N1 amplitude was greater on successful trials. Also on successful trials, N2 and P3 peaked earlier than on failed trials. The N2 amplitude of the mTBI group tended to be smaller than that of the controls. The control group had larger P3 amplitude on successful trials than on failed trials, whereas the mTBI group exhibited no P3 amplitudes difference between the two trial types. In addition, the mTBI group showed significantly longer error positivity latency than did the controls. These results suggest that inhibitory control and error processing were inefficient in the mTB group even more than three months after injury. Electrophysiological markers of cognitive dysfunction can be used as a sensitive tool for determining executive control after mTBI.
Collapse
Affiliation(s)
- I-Hsuan Shen
- Department of Occupational Therapy, Graduate Institute of Behavioral Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital Linkou branch, Taoyuan, Taiwan
| | - Ying-Ju Lin
- Department of Occupational Therapy, Graduate Institute of Behavioral Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Northern Service Center, Sunshine Social Welfare Foundation, Taipei, Taiwan
| | - Chia-Ling Chen
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital Linkou branch, Taoyuan, Taiwan.,Graduate Institute of Early Intervention, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Cheng-Chih Liao
- Department of Neurosurgery, Division of Neurospine, Chang Gung Memorial Hospital Linkou branch, Taoyuan, Taiwan.,Department of Neurospinal Surgery, Mennonite Christian Hospital, Hualien, Taiwan
| |
Collapse
|
10
|
Hudac CM, Cortesa CS, Ledwidge PS, Molfese DL. History of concussion impacts electrophysiological correlates of working memory. Int J Psychophysiol 2017; 132:135-144. [PMID: 29024682 DOI: 10.1016/j.ijpsycho.2017.09.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 09/12/2017] [Accepted: 09/25/2017] [Indexed: 01/26/2023]
Abstract
Sports-related concussions occur in approximately 21% of college athletes with implications for long-term cognitive impairments in working memory. Working memory involves the capacity to maintain short-term information and integrate with higher-order cognitive processing for planning and behavior execution, critical skills for optimal cognitive and athletic performance. This study quantified working memory impairments in 36 American football college athletes (18-23years old) using event-related potentials (ERPs). Despite performing similarly in a standard 2-back working memory task, athletes with history of concussion exhibited larger P1 and P3 amplitudes compared to Controls. Concussion History group latencies were slower for the P1 and faster for the N2. Source estimation analyses indicated that previously concussed athletes engaged different brain regions compared to athletes with no concussion history. These findings suggest that ERPs may be a sensitive and objective measure to detect long-term cognitive consequences of concussion.
Collapse
Affiliation(s)
- Caitlin M Hudac
- Department of Psychology, University of Nebraska-Lincoln, United States; Department of Psychiatry and Behavioral Sciences, University of Washington, United States.
| | - Cathryn S Cortesa
- Department of Psychology, University of Nebraska-Lincoln, United States; Department of Cognitive Science, Johns Hopkins University, United States.
| | - Patrick S Ledwidge
- Department of Psychology, University of Nebraska-Lincoln, United States; Center for Brain, Biology, & Behavior, University of Nebraska-Lincoln, United States; Department of Psychology, Baldwin Wallace University, United States
| | - Dennis L Molfese
- Department of Psychology, University of Nebraska-Lincoln, United States; Center for Brain, Biology, & Behavior, University of Nebraska-Lincoln, United States.
| |
Collapse
|
11
|
Hemispheric asymmetries in the transition from action preparation to execution. Neuroimage 2017; 148:390-402. [DOI: 10.1016/j.neuroimage.2017.01.009] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 01/03/2017] [Accepted: 01/05/2017] [Indexed: 12/14/2022] Open
|
12
|
Bianco V, Di Russo F, Perri RL, Berchicci M. Different proactive and reactive action control in fencers’ and boxers’ brain. Neuroscience 2017; 343:260-268. [DOI: 10.1016/j.neuroscience.2016.12.006] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 11/24/2016] [Accepted: 12/04/2016] [Indexed: 11/16/2022]
|
13
|
Berezina IY, Badalyan AV, Sumsky LI, Goldfarb YS. Dynamics of eeg and psychophysiological indicators of acute poisoning neurotoxicants on the stage of rehabilitation on the background of different methods of treatment. Zh Nevrol Psikhiatr Im S S Korsakova 2017; 117:53-63. [DOI: 10.17116/jnevro20171172153-63] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
14
|
Abstract
It is time to stop using the term concussion as it has no clear definition and no pathological meaning. This confusion is increasingly problematic as the management of ‘concussed’ individuals is a pressing concern. Historically, it has been used to describe patients briefly disabled following a head injury, with the assumption that this was due to a transient disorder of brain function without long-term sequelae. However, the symptoms of concussion are highly variable in duration, and can persist for many years with no reliable early predictors of outcome. Using vague terminology for post-traumatic problems leads to misconceptions and biases in the diagnostic process, producing uninterpretable science, poor clinical guidelines and confused policy. We propose that the term concussion should be avoided. Instead neurologists and other healthcare professionals should classify the severity of traumatic brain injury and then attempt to precisely diagnose the underlying cause of post-traumatic symptoms.
Collapse
Affiliation(s)
- David J Sharp
- Computational, Cognitive, and Clinical Neuroimaging Laboratory, Division of Brain Sciences, Faculty of Medicine, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Peter O Jenkins
- Computational, Cognitive, and Clinical Neuroimaging Laboratory, Division of Brain Sciences, Faculty of Medicine, Imperial College London, Hammersmith Hospital Campus, London, UK
| |
Collapse
|
15
|
Spatiotemporal brain mapping during preparation, perception, and action. Neuroimage 2016; 126:1-14. [DOI: 10.1016/j.neuroimage.2015.11.036] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 10/28/2015] [Accepted: 11/14/2015] [Indexed: 12/13/2022] Open
|
16
|
Rapp PE, Keyser DO, Albano A, Hernandez R, Gibson DB, Zambon RA, Hairston WD, Hughes JD, Krystal A, Nichols AS. Traumatic brain injury detection using electrophysiological methods. Front Hum Neurosci 2015; 9:11. [PMID: 25698950 PMCID: PMC4316720 DOI: 10.3389/fnhum.2015.00011] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Accepted: 01/07/2015] [Indexed: 11/20/2022] Open
Abstract
Measuring neuronal activity with electrophysiological methods may be useful in detecting neurological dysfunctions, such as mild traumatic brain injury (mTBI). This approach may be particularly valuable for rapid detection in at-risk populations including military service members and athletes. Electrophysiological methods, such as quantitative electroencephalography (qEEG) and recording event-related potentials (ERPs) may be promising; however, the field is nascent and significant controversy exists on the efficacy and accuracy of the approaches as diagnostic tools. For example, the specific measures derived from an electroencephalogram (EEG) that are most suitable as markers of dysfunction have not been clearly established. A study was conducted to summarize and evaluate the statistical rigor of evidence on the overall utility of qEEG as an mTBI detection tool. The analysis evaluated qEEG measures/parameters that may be most suitable as fieldable diagnostic tools, identified other types of EEG measures and analysis methods of promise, recommended specific measures and analysis methods for further development as mTBI detection tools, identified research gaps in the field, and recommended future research and development thrust areas. The qEEG study group formed the following conclusions: (1) Individual qEEG measures provide limited diagnostic utility for mTBI. However, many measures can be important features of qEEG discriminant functions, which do show significant promise as mTBI detection tools. (2) ERPs offer utility in mTBI detection. In fact, evidence indicates that ERPs can identify abnormalities in cases where EEGs alone are non-disclosing. (3) The standard mathematical procedures used in the characterization of mTBI EEGs should be expanded to incorporate newer methods of analysis including non-linear dynamical analysis, complexity measures, analysis of causal interactions, graph theory, and information dynamics. (4) Reports of high specificity in qEEG evaluations of TBI must be interpreted with care. High specificities have been reported in carefully constructed clinical studies in which healthy controls were compared against a carefully selected TBI population. The published literature indicates, however, that similar abnormalities in qEEG measures are observed in other neuropsychiatric disorders. While it may be possible to distinguish a clinical patient from a healthy control participant with this technology, these measures are unlikely to discriminate between, for example, major depressive disorder, bipolar disorder, or TBI. The specificities observed in these clinical studies may well be lost in real world clinical practice. (5) The absence of specificity does not preclude clinical utility. The possibility of use as a longitudinal measure of treatment response remains. However, efficacy as a longitudinal clinical measure does require acceptable test-retest reliability. To date, very few test-retest reliability studies have been published with qEEG data obtained from TBI patients or from healthy controls. This is a particular concern because high variability is a known characteristic of the injured central nervous system.
Collapse
Affiliation(s)
- Paul E. Rapp
- Uniformed Services University of the Health Sciences School of Medicine, Bethesda, MD, USA
| | - David O. Keyser
- Uniformed Services University of the Health Sciences School of Medicine, Bethesda, MD, USA
| | | | - Rene Hernandez
- US Navy Bureau of Medicine and Surgery, Frederick, MD, USA
| | | | | | - W. David Hairston
- U. S. Army Research Laboratory, Aberdeen Proving Ground, Aberdeen, MD, USA
| | | | | | | |
Collapse
|
17
|
Petit E, Bourdin H, Mougin F, Tio G, Haffen E. Time-of-Day Effects on Psychomotor and Physical Performances in Highly Trained Cyclists. Percept Mot Skills 2013; 117:376-88. [DOI: 10.2466/30.25.pms.117x23z0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The aim of this study was to examine, in trained young cyclists, whether psychomotor performances were dependent on time of day and fluctuated similarly to changes in athletic performance. 14 highly trained male cyclists ( M age = 17.3 yr., SD = 1.6; M height = 179.0 cm, SD = 0.1; M body weight = 67.4 kg, SD = 4.5) voluntarily took part in 6 test sessions, at 08:30, 10:30, 12:30, 14:30, 16:30 and 18:30. Each test session comprised a maximal-intensity exercise consisting of 2 × 10-sec. sprints (all-out exercise) preceded by an attentional performance test including 4 fields of attention performed in a randomized order at different times throughout the same day, every 2 hr. between 08:30 and 18:30. The main results indicated that attentional and physical performances depended on the time of day, with an improvement in reaction times in phasic alertness, visual scanning, flexibility, Go/No-go, and an increase in maximum power throughout the day. This study shows the daily variations in physical performances and that fluctuations are reflected in psychomotor performances. These findings suggest that cyclists' training sessions cannot be programmed throughout the day without taking into consideration the effects of the time of day, with several practical applications for coaches and athletes.
Collapse
Affiliation(s)
- Elisabeth Petit
- Integrative Neurosciences and Comportment, UPFR of Sports, University of Franche-Comte
| | - Hubert Bourdin
- Integrative Neurosciences and Comportment, CHRU, Sleep Disorder Unit
| | - Fabienne Mougin
- UPFR of Sports, University of Franche-Comte, Department of Cardiovascular, Physiopathology and Prevention
| | | | - Emmanuel Haffen
- Integrative Neurosciences and Comportment, CHRU, Department of Clinical Psychiatry, Clinical Investigation Center University Hospital of Besançon
| |
Collapse
|
18
|
Taddei F, Bultrini A, Spinelli D, Di Russo F. Neural correlates of attentional and executive processing in middle-age fencers. Med Sci Sports Exerc 2012; 44:1057-66. [PMID: 22157879 DOI: 10.1249/mss.0b013e31824529c2] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
PURPOSE Open-skill sports require high levels of visual attention and fast and flexible decision making and action execution. We evaluated whether these sports may counteract the well-known age-related declines in executive processing. METHODS Young and middle-age fencers and nonathletes were studied. Participants (N = 40) performed visual motor tasks while reaction times (RTs) and event-related potentials were recorded. RESULTS RTs were slower for the older subjects, but accuracy was not impaired. At event-related potential level, the late P3 component was delayed in older subjects, but those who participated in sports showed less delay. The RTs of middle-age and young fencers were comparable; the P1 latency of middle-age fencers was similar to that of the younger subjects; the N1 was enhanced in older, as well as younger, fencers; the N2 component of fencers had shorter latencies and larger amplitudes than nonathletes; and in no-go trials, the P3 component was enhanced in fencers independent of age. CONCLUSIONS Overall, the practice of open-skill sports was associated with improvement of the executive functions that are already degraded at middle age.
Collapse
Affiliation(s)
- Francesco Taddei
- Department of Education Sciences for Motor Activity and Sport, University of Rome "Foro Italico," Rome, ITALY
| | | | | | | |
Collapse
|
19
|
Prefrontal hyperactivity in older people during motor planning. Neuroimage 2012; 62:1750-60. [DOI: 10.1016/j.neuroimage.2012.06.031] [Citation(s) in RCA: 115] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 06/05/2012] [Accepted: 06/17/2012] [Indexed: 11/20/2022] Open
|
20
|
Sato JR, Kozasa EH, Russell TA, Radvany J, Mello LEAM, Lacerda SS, Amaro E. Brain imaging analysis can identify participants under regular mental training. PLoS One 2012; 7:e39832. [PMID: 22802944 PMCID: PMC3389014 DOI: 10.1371/journal.pone.0039832] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 05/28/2012] [Indexed: 11/19/2022] Open
Abstract
Multivariate pattern recognition approaches have become a prominent tool in neuroimaging data analysis. These methods enable the classification of groups of participants (e.g. controls and patients) on the basis of subtly different patterns across the whole brain. This study demonstrates that these methods can be used, in combination with automated morphometric analysis of structural MRI, to determine with great accuracy whether a single subject has been engaged in regular mental training or not. The proposed approach allowed us to identify with 94.87% accuracy (p<0.001) if a given participant is a regular meditator (from a sample of 19 regular meditators and 20 non-meditators). Neuroimaging has been a relevant tool for diagnosing neurological and psychiatric impairments. This study may suggest a novel step forward: the emergence of a new field in brain imaging applications, in which participants could be identified based on their mental experience.
Collapse
Affiliation(s)
- João R. Sato
- UFABC –Univ. Federal do ABC, Santo André, Brazil
| | - Elisa H. Kozasa
- Instituto do Cérebro, Hospital Israelita Albert Einstein, São Paulo, Brazil
- Department of Psychobiology – UNIFESP – Univ. Federal De São Paulo, São Paulo, Brazil
| | - Tamara A. Russell
- King’s College London, Institute of Psychiatry, London, United Kingdom
| | - João Radvany
- Instituto do Cérebro, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | | | - Shirley S. Lacerda
- Instituto do Cérebro, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Edson Amaro
- Instituto do Cérebro, Hospital Israelita Albert Einstein, São Paulo, Brazil
- * E-mail:
| |
Collapse
|
21
|
Hayes JP, Morey RA, Tupler LA. A case of frontal neuropsychological and neuroimaging signs following multiple primary-blast exposure. Neurocase 2012; 18:258-69. [PMID: 21879996 PMCID: PMC3718065 DOI: 10.1080/13554794.2011.588181] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Blast-related traumatic brain injury (TBI) from the Afghanistan and Iraq wars represents a significant medical concern for troops and veterans. To better understand the consequences of primary-blast injury in humans, we present a case of a Marine exposed to multiple primary blasts during his 14-year military career. The neuropsychological profile of this formerly high-functioning veteran suggested primarily executive dysfunction. Diffusion-tensor imaging revealed white-matter pathology in long fiber tracks compared with a composite fractional-anisotropy template derived from a veteran reference control group without TBI. This study supports the existence of primary blast-induced neurotrauma in humans and introduces a neuroimaging technique with potential to discriminate multiple-blast TBI.
Collapse
Affiliation(s)
- Jasmeet Pannu Hayes
- National Center for PTSD-116B-2, VA Boston Healthcare System, 150 S. Huntington Ave., Boston, MA 02130, USA.
| | | | | |
Collapse
|
22
|
Weber M, Edwards MG. Sport concussion knowledge in the UK general public. Arch Clin Neuropsychol 2012; 27:355-61. [PMID: 22377909 DOI: 10.1093/arclin/acs029] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
This is the first study to assess sport concussion knowledge and the effect of sport concussion self-report on knowledge in the UK general public. In the online survey, participants (n = 227) stated personal sport concussion history, injury indicators, and rated 26 injury statements for truthfulness using definite (true, false) or non-definite (probably true, probably false) response options. As anticipated, knowledge was limited. Few statement ratings were definite, and misconceptions prevailed. The injury's seriousness was systematically underestimated, suggesting that knowledge may not be sufficient for injury self-diagnosis and self-recovery measures. Sport concussion self-report was associated with more definite than non-definite statement ratings. However, response accuracy did not differ. This suggested that personal injury experience may yield a false sense of security. The use of accessible, easy-to-use tools needs to be promoted to improve sport practice safety.
Collapse
Affiliation(s)
- Mareen Weber
- College of Life and Environmental Sciences, School of Sport and Exercise Sciences, University of Birmingham, UK.
| | | |
Collapse
|
23
|
Costanza A, Weber K, Gandy S, Bouras C, Hof PR, Giannakopoulos P, Canuto A. Review: Contact sport-related chronic traumatic encephalopathy in the elderly: clinical expression and structural substrates. Neuropathol Appl Neurobiol 2012; 37:570-84. [PMID: 21696410 DOI: 10.1111/j.1365-2990.2011.01186.x] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Professional boxers and other contact sport athletes are exposed to repetitive brain trauma that may affect motor functions, cognitive performance, emotional regulation and social awareness. The term of chronic traumatic encephalopathy (CTE) was recently introduced to regroup a wide spectrum of symptoms such as cerebellar, pyramidal and extrapyramidal syndromes, impairments in orientation, memory, language, attention, information processing and frontal executive functions, as well as personality changes and behavioural and psychiatric symptoms. Magnetic resonance imaging usually reveals hippocampal and vermis atrophy, a cavum septum pellucidum, signs of diffuse axonal injury, pituitary gland atrophy, dilated perivascular spaces and periventricular white matter disease. Given the partial overlapping of the clinical expression, epidemiology and pathogenesis of CTE and Alzheimer's disease (AD), as well as the close association between traumatic brain injuries (TBIs) and neurofibrillary tangle formation, a mixed pathology promoted by pathogenetic cascades resulting in either CTE or AD has been postulated. Molecular studies suggested that TBIs increase the neurotoxicity of the TAR DNA-binding protein 43 (TDP-43) that is a key pathological marker of ubiquitin-positive forms of frontotemporal dementia (FTLD-TDP) associated or not with motor neurone disease/amyotrophic lateral sclerosis (ALS). Similar patterns of immunoreactivity for TDP-43 in CTE, FTLD-TDP and ALS as well as epidemiological correlations support the presence of common pathogenetic mechanisms. The present review provides a critical update of the evolution of the concept of CTE with reference to its neuropathological definition together with an in-depth discussion of the differential diagnosis between this entity, AD and frontotemporal dementia.
Collapse
Affiliation(s)
- A Costanza
- Department of Psychiatry, University Hospitals and Faculty of Medicine, University of Geneva School of Medicine, Geneva, Switzerland
| | | | | | | | | | | | | |
Collapse
|
24
|
A history of sport-related concussion on event-related brain potential correlates of cognition. Int J Psychophysiol 2011; 82:16-23. [DOI: 10.1016/j.ijpsycho.2011.02.010] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Revised: 02/07/2011] [Accepted: 02/11/2011] [Indexed: 11/21/2022]
|
25
|
Del Percio C, Infarinato F, Marzano N, Iacoboni M, Aschieri P, Lizio R, Soricelli A, Limatola C, Rossini PM, Babiloni C. Reactivity of alpha rhythms to eyes opening is lower in athletes than non-athletes: a high-resolution EEG study. Int J Psychophysiol 2011; 82:240-7. [PMID: 21945479 DOI: 10.1016/j.ijpsycho.2011.09.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Revised: 08/17/2011] [Accepted: 09/04/2011] [Indexed: 12/22/2022]
Abstract
In the present study, we tested the hypothesis that compared with non-athletes, elite athletes are characterized by a reduction of reactivity of electroencephalographic (EEG) alpha rhythms (about 8-12 Hz) to eyes opening in the condition of resting state, as a possible index of spatially selective cortical activation (i.e. "neural efficiency"). EEG data (56 channels; Eb-Neuro©) were recorded in 18 elite karate athletes and 28 non-athletes during resting state eyes-closed and eyes-open conditions. The EEG data were spatially enhanced by surface Laplacian estimation. Cortical activity was indexed by task-related power decrease (TRPD), namely the alpha power during the eyes-open referenced to the eyes-closed resting condition. Low-frequency alpha TRPD (about 8-10 Hz) was lower in the elite karate athletes than in the non-athletes in frontal (p<0.00002), central (p<0.008) and right occipital (p<0.02) areas. Similarly, high-frequency alpha TRPD (about 10-12 Hz) was lower in the elite karate athletes than in the non-athletes in frontal (p<0.00009) and central (p<0.01) areas. These results suggest that athletes' brain is characterized by reduced cortical reactivity to eyes opening in the condition of resting state, in line with the "neural efficiency" hypothesis. The present study motivates future research evaluating the extent to which this general functional brain feature is related to heritable trait or intensive visuo-motor training of elite athletes.
Collapse
|
26
|
Saville CW, Dean RO, Daley D, Intriligator J, Boehm S, Feige B, Klein C. Electrocortical correlates of intra-subject variability in reaction times: Average and single-trial analyses. Biol Psychol 2011; 87:74-83. [DOI: 10.1016/j.biopsycho.2011.02.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Revised: 02/08/2011] [Accepted: 02/09/2011] [Indexed: 11/29/2022]
|
27
|
Di Russo F, Bultrini A, Brunelli S, Delussu AS, Polidori L, Taddei F, Traballesi M, Spinelli D. Benefits of sports participation for executive function in disabled athletes. J Neurotrauma 2011; 27:2309-19. [PMID: 20925480 DOI: 10.1089/neu.2010.1501] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
We investigated the effect of sports activity on physically-disabled individuals using behavioral and electrophysiological techniques. Visual go/no-go discriminative and simple response tasks were used. Participants included 17 disabled athletes, 9 from open-skill (wheelchair basketball) and eight from closed-skill (swimming) sports, and 18 healthy non-athletes. Reaction times of the disabled athletes were slower than those of healthy non-athletes on both tasks (7% and 13% difference, respectively). Intra-individual variations in reaction times, switch cost, and number of false alarms, were higher in the swimmers, but comparable to healthy non-athletes, in the basketball group. Event-related potentials (ERPs) early components P1, N1, and P2 had longer latencies in the disabled athletes. The late P3 component had longer latency and smaller amplitude in the disabled athletes only in the discriminative response task. The N2 component, which reflected inhibition/execution processing in the discriminative response task, was delayed and reduced in the swimmer group, but was comparable to healthy subjects in the basketball group. Our results show that (1) the ERP components related to perceptual processing, and late components related to executive processing, were impaired in disabled subjects; and (2) open-skill sports such as basketball may partially compensate for executive control impairment by fostering the stability of motor responses and favoring response flexibility.
Collapse
Affiliation(s)
- Francesco Di Russo
- Department of Education Sciences for Motor Activity and Sport, University of Rome Foro Italico, Rome, Italy.
| | | | | | | | | | | | | | | |
Collapse
|