Experimental Brain Research最新文献_第2页

Anticipatory control of digit kinematics: a developmental milestone for motor skill acquisition. 手指运动的预期控制：运动技能习得的发展里程碑。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2025-06-06 DOI: 10.1007/s00221-025-07113-9

Vivian L Rose, Pranav J Parikh

{"title":"Anticipatory control of digit kinematics: a developmental milestone for motor skill acquisition.","authors":"Vivian L Rose, Pranav J Parikh","doi":"10.1007/s00221-025-07113-9","DOIUrl":"https://doi.org/10.1007/s00221-025-07113-9","url":null,"abstract":"During development, children naturally explore and manipulate objects with their hands and fingers, becoming more skillful with practice and with age. Adults grip objects strategically and adjust forces based on task demands; for example, digit positions on a glass of milk differ when transporting it versus when drinking from it. In these interactions, sensory feedback about digit position is crucial for precise control of the object. The brain forms distinct sensorimotor memories for both digit forces and positions, utilizing them to finely adjust grip parameters during skilled object manipulation. While the development of digit forces is well-studied, the development of anticipatory control of digit position remains less understood. This study investigated the development of anticipatory control of digit positions in children 5-7, 8-10, and 15-17 years during a dexterous manipulation task. A modified grip apparatus measured digit forces, positions, and object tilt (i.e., performance) at lift-off. A total of 39 children completed the study. Children aged 5-7 years failed to use sensorimotor memories about the object's hidden mass location from previous trials to plan their digit positions and digit forces. They applied an inaccurate torque that resulted in significant object tilt. Children aged 8-10 years showed a modest ability to use sensorimotor memories from previous trials when compared with the adolescent group. This study elucidates the ongoing development of dexterity into adolescence, offering insight into the maturation of sensorimotor capabilities throughout childhood and adolescence.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":"243 7","pages":"169"},"PeriodicalIF":1.7,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144233674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of recent concussion history on dynamic visual acuity and balance control in varsity athletes. 近期脑震荡史对大学运动员动态视力和平衡控制的影响。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2025-06-06 DOI: 10.1007/s00221-025-07122-8

Katelyn M Mitchell, Kristine N Dalton, Michael E Cinelli

{"title":"The effect of recent concussion history on dynamic visual acuity and balance control in varsity athletes.","authors":"Katelyn M Mitchell, Kristine N Dalton, Michael E Cinelli","doi":"10.1007/s00221-025-07122-8","DOIUrl":"https://doi.org/10.1007/s00221-025-07122-8","url":null,"abstract":"Altered visual-cognitive functions and balance control are commonly detected following sport-related concussion (SRC). However, there are no integrated clinical strategies to characterize vision, cognition, and balance beyond the resolution of symptoms for athletes following SRC. To examine how recent SRC history may affect performance for athletes on a dynamic visual acuity (DVA) task while standing. Interuniversity athletes with SRC history who were asymptomatic (SRC = 25; females = 12) were compared to athlete controls (CONTROL = 35; females = 19). A custom DVA program presented a Tumbling \"E\" moving randomly (RW) or horizontally (H) at 30°/s viewed from 4 m. Athletes identified the target's orientation using a keypad while seated and standing on a force plate (1000 Hz). The lowest target size correctly identified was scored as the log of the minimum angle of resolution (logMAR). Dual-task performance was characterized by, 1) a relative change in DVA logMAR score from seated; 2) response time (RT); and 3) balance control. Balance control was quantified using the root mean square of centre of pressure displacement (dCOP) and standard deviation of high frequency (> 0.4 Hz) component of COP (COPHigh). Athletes with recent SRC exhibited a worse relative change in DVA score from seated to standing for H-motion compared to controls (p < 0.05). However, RT for both motion conditions and balance control were not different between groups. Following SRC, some athletes may have persisting visual-cognitive deficits revealed by a worse change in performance on a horizontal DVA task during increased balance demands while standing.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":"243 7","pages":"168"},"PeriodicalIF":1.7,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144233675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sensorimotor adaptation to sustained lower visual field occlusion during continuous locomotion with and without obstacle negotiation. 在有或无障碍的连续运动中持续低视野遮挡的感觉运动适应。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2025-06-04 DOI: 10.1007/s00221-025-07111-x

John G Buckley, Alan R De Asha, Brendan T Barrett, Adam Clansey, Kevin J Deluzio

{"title":"Sensorimotor adaptation to sustained lower visual field occlusion during continuous locomotion with and without obstacle negotiation.","authors":"John G Buckley, Alan R De Asha, Brendan T Barrett, Adam Clansey, Kevin J Deluzio","doi":"10.1007/s00221-025-07111-x","DOIUrl":"10.1007/s00221-025-07111-x","url":null,"abstract":"The importance of having visual feedback of the lower-limb to locomotion control, has typically been examined by intermittently occluding the lower visual field (lvf) in repeated obstacle crossing trials. A consistent finding is that foot clearance increases following lvf occlusion. However, there is some evidence that the increase in clearance diminishes with further repetition. This calls into question the importance of lvf feedback in the control of locomotion. We present two studies investigating how foot clearance is affected as a result of sustained lvf occlusion during continuous locomotion over i) a level surface and ii) the same surface, but involving intermittent obstacle negotiation. In both studies, clearance increased following lvf occlusion but then diminished within a few minutes of continued walking: suggesting that the initial increase may have been an acute but transient response. After four minutes, clearance in level-walking had returned to pre-occlusion levels, whereas for obstacle crossing, clearance remained elevated and showed only a slight lessening over time. These findings provide support for the notion that lvf ex-proprioceptive information is not paramount in the control of the swinging limb/foot during overground gait, but it is customarily used in adaptive gait involving obstacle crossing in determining foot placement before the obstacle and hence clearance over it. We argue that lvf occlusion leads to a more general 'acute' perturbation of gait that is not necessarily related to the elimination of visual ex-proprioceptive feedback, and this has implications for the design of laboratory-based studies investigating the role of vision in locomotion.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":"243 7","pages":"167"},"PeriodicalIF":1.7,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12137439/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144215322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Auditory P3a reflects attentional process, not response inhibition to deviant processing: an ERP study with three-stimulus oddball paradigm. 听觉P3a反映的是注意过程，而非对偏差加工的反应抑制：基于三刺激古怪范式的ERP研究。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2025-06-04 DOI: 10.1007/s00221-025-07114-8

Motoyuki Sanada, Morihiro Shimada, Jun'ichi Katayama

{"title":"Auditory P3a reflects attentional process, not response inhibition to deviant processing: an ERP study with three-stimulus oddball paradigm.","authors":"Motoyuki Sanada, Morihiro Shimada, Jun'ichi Katayama","doi":"10.1007/s00221-025-07114-8","DOIUrl":"https://doi.org/10.1007/s00221-025-07114-8","url":null,"abstract":"In a three-stimulus oddball task, the P3a event-related potential (ERP) is typically elicited by an infrequent deviant, with its amplitude increasing under difficult task conditions. In the visual modality, this P3a enhancement has been shown to reflect attentional process rather than response inhibition to the deviant. This study aimed to examine whether P3a amplitude increase by task difficulty in the auditory modality also reflects attentional process. The same experimental design as in the visual study was applied, manipulating stimulus category (three- vs. two-category) and task difficulty (easy vs. difficult). In the three-category condition, stimuli included standard tones, target deviant tones, and non-target deviant chords, with only target deviant tones requiring a response. In the two-category condition, stimuli were categorized into standard tones, target deviant tones and target deviant chords. Thus, the difference between the two conditions is that deviant chords were non-target or target. Task difficulty was varied by adjusting frequency distance between standard tones and target deviant tones. If P3a reflects attentional process, enhancement should occur in both conditions, while response inhibition would only enhance P3a in the three-category condition. Results showed that P3a amplitude increased by task difficulty occurred in both conditions, supporting the attentional process hypothesis. The fact that the P3a augmentation reflects attentional process regardless of sensory modality suggests that this process is mediated by modality-independent neural mechanisms.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":"243 7","pages":"166"},"PeriodicalIF":1.7,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144215321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of arm movement strategies on emotional state and gait outcomes during height-induced postural threat in healthy children compared to young adults. 与年轻人相比，手臂运动策略对健康儿童在高度诱导的姿势威胁中情绪状态和步态结果的影响

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2025-06-03 DOI: 10.1007/s00221-025-07112-w

Anna M Wissmann, Mathew W Hill, Thomas Muehlbauer, Johanna Lambrich

{"title":"Impact of arm movement strategies on emotional state and gait outcomes during height-induced postural threat in healthy children compared to young adults.","authors":"Anna M Wissmann, Mathew W Hill, Thomas Muehlbauer, Johanna Lambrich","doi":"10.1007/s00221-025-07112-w","DOIUrl":"10.1007/s00221-025-07112-w","url":null,"abstract":"Empirical evidence indicates that height-induced postural threat as well as the restriction of arm movements lead to detrimental effects on walking performance. However, it is unclear whether the deteriorations are more pronounced in children (i.e., due to incomplete maturation) compared to young adults. This study investigated the effects of different arm movement strategies on subjective and objective indicators related to walking at or above ground-level in children compared to young adults. Twenty-nine children (age: 11.1 ± 0.3 years) and 26 young adults (age: 24.0 ± 4.7 years) walked five meters at self-selected speed on ground-level (no threat) and 80 cm above ground-level (threat) with free and restricted arm movements. Walking outcomes (i.e., gait speed, cadence) were measured and used as objective markers. Self-reported emotional state outcomes (i.e., balance confidence, fear of falling, perceived safety, conscious balance processing) were assessed and used as subjective indicators related to walking. Children significantly differed from young adults in objective and subjective outcomes related to gait by showing no decrease in walking cadence from the no threat to the threat condition (irrespective of arm movement condition) and a decrease in perceived safety when walking with restricted compared to free arm movements (irrespective of threat condition). The findings extend previous research related to postural threat and arm restriction while walking in young adults and provide new insights into understanding how children behave under these conditions.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":"243 7","pages":"164"},"PeriodicalIF":1.7,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12133992/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144208082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multiple object handling: exploring strategies for cumulative grasping and transport using a single hand. 多目标处理：探索单手累积抓取和运输策略。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2025-06-03 DOI: 10.1007/s00221-025-07084-x

Arran T Reader, Laura Gaile, Wenxi Li, Emily E Cheah Mc Corry, Kirsten Mackie

{"title":"Multiple object handling: exploring strategies for cumulative grasping and transport using a single hand.","authors":"Arran T Reader, Laura Gaile, Wenxi Li, Emily E Cheah Mc Corry, Kirsten Mackie","doi":"10.1007/s00221-025-07084-x","DOIUrl":"10.1007/s00221-025-07084-x","url":null,"abstract":"Humans can cumulatively grasp multiple objects and then transport them using a single hand (e.g., when clearing up tableware). This skill, which we refer to as 'multiple object handling', helps minimise the number of actions required to transport objects. However, it also presents unique challenges for the sensorimotor system, including the use of grips other than finger-thumb opposition (almost always used for grasping single objects). In the present work we explored the strategies used for multiple object handling, particularly focussing on object selection and grip choice. Participants were presented with pairs of objects, asked to grasp one of them and then, without placing that object down, grasp the second object and transport both to a designated location. We examined the order in which participants selected objects and the grips used for grasping and holding them. Results provide preliminary evidence for a typical approach to multiple object handling. We observed that when two objects were grasped cumulatively for transport, finger-thumb opposition was almost always used to grasp the first object, which was then frequently held using an atypical grip (e.g., finger-finger or finger-palm opposition). Finger-thumb opposition was almost always used once again to grasp the subsequent object. Participants preferred to grasp objects with lower mass or surface area first, potentially facilitating this approach. In sum, this work provides insight into a technique commonly used for efficient object transport.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":"243 7","pages":"165"},"PeriodicalIF":1.7,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12134043/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144208098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of vibrotactile feedback on performance, perception and trust when balancing in different analog g-levels. 振动触觉反馈对不同模拟g水平平衡时表现、感知和信任的影响。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2025-05-31 DOI: 10.1007/s00221-025-07098-5

Vivekanand Pandey Vimal, Paul DiZio, James R Lackner

{"title":"The effect of vibrotactile feedback on performance, perception and trust when balancing in different analog g-levels.","authors":"Vivekanand Pandey Vimal, Paul DiZio, James R Lackner","doi":"10.1007/s00221-025-07098-5","DOIUrl":"10.1007/s00221-025-07098-5","url":null,"abstract":"We studied orientation-dependent vibrotactile feedback (VF) as a countermeasure to spatial disorientation (SD) in spaceflight analog environments. In Experiment 1, participants balanced themselves in a dynamic motion simulator in Earth (1-g), Martian (0.38-g), Lunar (0.166-g) and 0-g analog conditions. One group (n = 13) had VF and the Control group (n = 13) did not. As g-level decreased, attitude control and subjective confusion worsened, for both groups. An exponential model fit both groups. The Control group became significantly worse than its 1-g baseline at 0.61 to 0.23-g. Based on these model fits, the VF group performed slightly better than Controls in 1-g, significantly better between 0.82 and 0.10-g, and their performance advantage increased towards 0-g. However, both groups reported similar levels of confusion in their sense of angular position and velocity across all g-levels. The VF group reported high trust in VF cueing as g-level decreased, despite their worsening performance and subjective confusion, highlighting a dissociation between the effectiveness of VF and cognitive trust in VF. Despite its benefits during hypo-g exposures, VF did not fully restore 1-g proficiency. In Experiment 2, we assessed whether a new group (n = 13) of participants given extended exposure with VF in the Lunar analog condition would achieve 1-g level performance. Initial performance and confusion deteriorated significantly relative to 1-g but then improved significantly until 1-g baselines were restored for most measures. However, signatures of SD, including attitude drift and positional confusion were still present. These results suggest that VF potentially would enhance dynamic vehicle control in spaceflight but may not fully eliminate SD.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":"243 7","pages":"161"},"PeriodicalIF":1.7,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12126363/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144191707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prolonged neck proprioceptive vibratory stimulation prevents the self-motion misperception induced by neck muscle fatigue: immediate and sustained effects. 长时间的颈部本体感觉振动刺激防止由颈部肌肉疲劳引起的自我运动错觉：即时和持续的效果。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2025-05-31 DOI: 10.1007/s00221-025-07109-5

M Guardabassi, F M Botti, A Rodio, L Fattorini, G M Filippi, A Ferraresi, C Occhigrossi, V E Pettorossi

{"title":"Prolonged neck proprioceptive vibratory stimulation prevents the self-motion misperception induced by neck muscle fatigue: immediate and sustained effects.","authors":"M Guardabassi, F M Botti, A Rodio, L Fattorini, G M Filippi, A Ferraresi, C Occhigrossi, V E Pettorossi","doi":"10.1007/s00221-025-07109-5","DOIUrl":"https://doi.org/10.1007/s00221-025-07109-5","url":null,"abstract":"A recent study has shown that fatigue of the posterior neck muscles, induced by prolonged isometric contractions, causes self-motion misperception. The present study investigates whether focal vibration of the posterior neck muscles can prevent or abolish it. Self-motion perception was assessed by analyzing the tracking of a ground-fixed visual target during passive sinusoidal horizontal trunk rotation, both symmetric and asymmetric, with a stationary head. After prolonged isometric contractions that induced posterior neck muscle fatigue, perceptual responses to symmetric sinusoidal trunk rotation showed a decrease in gain at lower rotation velocities, and an increase in the final position error (FPE). The changes in gain and FPE were completely prevented by prior high-frequency vibration (100 Hz for 3 min) of the posterior neck muscles, whereas they were eliminated when the vibration was applied after the fatigue-induced deficit had already occurred. We suggest that the focal vibration activating the neck muscle proprioception may inhibit fatigue signals, possibly through a gate control mechanism. Furthermore, the persistence of the vibratory effects was examined by testing the perceptual gain and the FPE after prolonged vibratory application (three separate sessions of ten minutes each, at 1 min rest intervals). It was found that the effects of fatigue on the FPE was eliminated even one week after vibration. This finding suggests that the focal vibratory procedure may be useful to attenuate the impact of fatigue on self-motion perception, potentially preventing deterioration of balance and orientation abilities.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":"243 7","pages":"162"},"PeriodicalIF":1.7,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144191705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Speech-reading on the lips as a cognitive resource to understand speech in noise. 唇读作为一种认知资源来理解噪声环境下的言语。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2025-05-31 DOI: 10.1007/s00221-025-07117-5

Elena Gessa, Chiara Valzolgher, Elena Giovanelli, Massimo Vescovi, Chiara Visentin, Nicola Prodi, Eloise Di Blasi, Viola Sadler, Francesco Pavani

{"title":"Speech-reading on the lips as a cognitive resource to understand speech in noise.","authors":"Elena Gessa, Chiara Valzolgher, Elena Giovanelli, Massimo Vescovi, Chiara Visentin, Nicola Prodi, Eloise Di Blasi, Viola Sadler, Francesco Pavani","doi":"10.1007/s00221-025-07117-5","DOIUrl":"https://doi.org/10.1007/s00221-025-07117-5","url":null,"abstract":"In challenging acoustic scenarios, speech processing is often linked to listening effort, which can be described as the balance between cognitive demands and motivation to understand speech. In such conditions, people usually rely on several behavioral strategies to support speech understanding and reduce listening effort (e.g., speech-reading behavior). Still, it is not clear what cognitive mechanisms underlie the use of behavioral strategies for listening. We hypothesized that the cognitive and motivational dimensions of listening effort may also drive speech-reading strategies spontaneously adopted in challenging conditions. Normal-hearing adults (N = 64) performed audiovisual speech-recognition in noise, in combination with a concurrent mnemonic task with low vs. high working memory engagement to set cognitive demands. Motivation was manipulated between-subjects through fixed or performance-related monetary rewards. Speech-reading was tracked with eye-movement, and pupil dilation served as a physiological measure of listening effort, confirming manipulation effectiveness. We found that exerted listening effort intensifies speech-reading behavior, with motivation playing a key role in this behavioral adaptation to enhanced cognitive demands. These findings document the association between internal mental processes and behavioral adaptation in the speech domain.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":"243 7","pages":"163"},"PeriodicalIF":1.7,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144191706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamics of sensorimotor-related brain oscillations: EEG insights from healthy individuals in varied upper limb movement conditions. 感觉运动相关的脑振荡动力学：不同上肢运动条件下健康个体的脑电图观察。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2025-05-31 DOI: 10.1007/s00221-025-07116-6

Lucas Murrins Marques, Allan Strauss, Ana Castellani, Sara Barbosa, Marcel Simis, Felipe Fregni, Linamara Battistella

{"title":"Dynamics of sensorimotor-related brain oscillations: EEG insights from healthy individuals in varied upper limb movement conditions.","authors":"Lucas Murrins Marques, Allan Strauss, Ana Castellani, Sara Barbosa, Marcel Simis, Felipe Fregni, Linamara Battistella","doi":"10.1007/s00221-025-07116-6","DOIUrl":"https://doi.org/10.1007/s00221-025-07116-6","url":null,"abstract":"Event-related desynchronization (ERD) and event-related synchronization (ERS) are critical neurophysiological phenomena associated with motor execution and inhibitory processes. Their utility spans neurophysiological biomarker research and Brain-Computer Interface (BCI) development. However, standardized frameworks for analyzing ERD and ERS oscillations across motor tasks and frequency ranges remain scarce. This study conducted a cross-sectional analysis of 76 healthy participants from the DEFINE cohort to explore ERD and ERS variations across four motor-related tasks (Motor Execution, Motor Imagery, Active Observation, and Passive Observation) and six frequency bands (Delta, Theta, Low Alpha, High Alpha, Low Beta, and High Beta) using C3 electrode activity. Repeated measures ANOVA revealed task-sensitive ERD and ERS power modulations, with oscillatory responses spanning the 1-30 Hz spectrum. Beta activity exhibited pronounced differences between tasks, highlighting its relevance in motor control, while other bands showed distinct task-dependent variations. These findings underscore the variability in ERD/ERS patterns across different tasks and frequency bands, reinforcing the importance of further research into standardized analytical frameworks. By refining ERD/ERS analyses, our study contributes to developing reference frameworks that can enhance clinical and Brain-Computer Interface (BCI) applications.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":"243 7","pages":"160"},"PeriodicalIF":1.7,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144191704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0