Experimental Brain Research最新文献_第3页

Role of proprioception in corrective visually-guided movements: larger movement errors in both arms of a deafferented individual compared to control participants. 本体感觉在视觉引导的矫正动作中的作用：与对照组参与者相比，失能者双臂的动作误差更大。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2024-10-01 Epub Date: 2024-08-07 DOI: 10.1007/s00221-024-06901-z

Shanie A L Jayasinghe, Robert L Sainburg, Fabrice R Sarlegna

{"title":"Role of proprioception in corrective visually-guided movements: larger movement errors in both arms of a deafferented individual compared to control participants.","authors":"Shanie A L Jayasinghe, Robert L Sainburg, Fabrice R Sarlegna","doi":"10.1007/s00221-024-06901-z","DOIUrl":"10.1007/s00221-024-06901-z","url":null,"abstract":"Proprioception plays an important role in both feedforward and feedback processes underlying movement control. This has been shown with individuals who suffered a profound proprioceptive loss and use vision to partially compensate for the sensory loss. The purpose of this study was to specifically examine the role of proprioception in feedback motor responses to visual perturbations by examining voluntary arm movements in an individual with a rare case of selective peripheral deafferentation (GL). We compared her left and right hand movements with those of age-matched female control participants (70.0 years ± 0.2 SEM) during a reaching task. Participants were asked to move their unseen hand, represented by a cursor on the screen, quickly and accurately to reach a visual target. A visual perturbation could be pseudorandomly applied, at movement onset, to either the target position (target jump) or the cursor position (cursor jump). Results showed that despite the continuous visual feedback that was provided, GL produced larger errors in final position accuracy compared to control participants, with her left nondominant hand being more erroneous after a cursor jump. We also found that the proprioceptively-deafferented individual produced less spatially efficient movements than the control group. Overall, these results provide evidence of a heavier reliance on proprioceptive feedback for movements of the nondominant hand relative to the dominant hand, supporting the view of a lateralization of the feedback processes underlying motor control.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141897183","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

Research on low-power driving fatigue monitoring method based on spiking neural network. 基于尖峰神经网络的低功耗驾驶疲劳监测方法研究

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2024-10-01 Epub Date: 2024-08-23 DOI: 10.1007/s00221-024-06911-x

Tianshu Gu, Wanchao Yao, Fuwang Wang, Rongrong Fu

{"title":"Research on low-power driving fatigue monitoring method based on spiking neural network.","authors":"Tianshu Gu, Wanchao Yao, Fuwang Wang, Rongrong Fu","doi":"10.1007/s00221-024-06911-x","DOIUrl":"10.1007/s00221-024-06911-x","url":null,"abstract":"Fatigue driving is one of the leading causes of traffic accidents, and the rapid and accurate detection of driver fatigue is of paramount importance for enhancing road safety. However, the application of deep learning models in fatigue driving detection has long been constrained by high computational costs and power consumption. To address this issue, this study proposes an approach that combines Self-Organizing Map (SOM) and Spiking Neural Networks (SNN) to develop a low-power model capable of accurately recognizing the driver's mental state. Initially, spatial features are extracted from electroencephalogram (EEG) signals using the SOM network. Subsequently, the extracted weight vectors are encoded and fed into the SNN for fatigue driving classification. The research results demonstrate that the proposed method effectively considers the spatiotemporal characteristics of EEG signals, achieving efficient fatigue detection. Simultaneously, this approach successfully reduces the model's power consumption. When compared to traditional artificial neural networks, our method reduces energy consumption by approximately 12.21-42.59%.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142035605","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

Understanding effects of observing affordance-driven action during motor imagery through EEG analysis. 通过脑电图分析了解在运动想象过程中观察承受力驱动动作的效果。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2024-10-01 Epub Date: 2024-08-24 DOI: 10.1007/s00221-024-06912-w

Supriya Bordoloi, Cota Navin Gupta, Shyamanta M Hazarika

{"title":"Understanding effects of observing affordance-driven action during motor imagery through EEG analysis.","authors":"Supriya Bordoloi, Cota Navin Gupta, Shyamanta M Hazarika","doi":"10.1007/s00221-024-06912-w","DOIUrl":"10.1007/s00221-024-06912-w","url":null,"abstract":"The aim of this paper is to investigate the impact of observing affordance-driven action during motor imagery. Affordance-driven action refers to actions that are initiated based on the properties of objects and the possibilities they offer for interaction. Action observation (AO) and motor imagery (MI) are two forms of motor simulation that can influence motor responses. We examined combined AO + MI, where participants simultaneously engaged in AO and MI. Two different kinds of combined AO + MI were employed. Participants imagined and observed the same affordance-driven action during congruent AO + MI, whereas in incongruent AO + MI, participants imagined the actual affordance-driven action while observing a distracting affordance involving the same object. EEG data were analyzed for the N2 component of event-related potential (ERP). Our study found that the N2 ERP became more negative during congruent AO + MI, indicating strong affordance-related activity. The maximum source current density (0.00611 <math><mi>μ</mi></math> A/mm <math><mmultiscripts><mrow></mrow> <mrow></mrow> <mn>2</mn></mmultiscripts> </math> ) using Low-Resolution Electromagnetic Tomography (LORETA) was observed during congruent AO + MI in brain areas responsible for planning motoric actions. This is consistent with prefrontal cortex and premotor cortex activity for AO + MI reported in the literature. The stronger neural activity observed during congruent AO + MI suggests that affordance-driven actions hold promise for neurorehabilitation.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142046529","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

Eyes and hand are both reliable at localizing somatosensory targets. 眼睛和手都能可靠地定位体感目标。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2024-09-28 DOI: 10.1007/s00221-024-06922-8

Marion Naffrechoux, Eric Koun, Frederic Volland, Alessandro Farnè, Alice Catherine Roy, Denis Pélisson

{"title":"Eyes and hand are both reliable at localizing somatosensory targets.","authors":"Marion Naffrechoux, Eric Koun, Frederic Volland, Alessandro Farnè, Alice Catherine Roy, Denis Pélisson","doi":"10.1007/s00221-024-06922-8","DOIUrl":"https://doi.org/10.1007/s00221-024-06922-8","url":null,"abstract":"Body representations (BR) for action are critical to perform accurate movements. Yet, behavioral measures suggest that BR are distorted even in healthy people. However, the upper limb has mostly been used as a probe so far, making difficult to decide whether BR are truly distorted or whether this depends on the effector used as a readout. Here, we aimed to assess in healthy humans the accuracy of the eye and hand effectors in localizing somatosensory targets, to determine whether they may probe BR similarly. Twenty-six participants completed two localization tasks in which they had to localize an unseen target (proprioceptive or tactile) with either their eyes or hand. Linear mixed model revealed in both tasks a larger horizontal (but not vertical) localization error for the ocular than for the manual localization performance. However, despite better hand mean accuracy, manual and ocular localization performance positively correlated to each other in both tasks. Moreover, target position also affected localization performance for both eye and hand responses: accuracy was higher for the more flexed position of the elbow in the proprioceptive task and for the thumb than for the index finger in the tactile task, thus confirming previous results of better performance for the thumb. These findings indicate that the hand seems to beat the eyes along the horizontal axis when localizing somatosensory targets, but the localization patterns revealed by the two effectors seemed to be related and characterized by the same target effect, opening the way to assess BR with the eyes when upper limb motor control is disturbed.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142344448","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

Transcutaneous spinal cord stimulation phase-dependently modulates spinal reciprocal inhibition induced by pedaling in healthy individuals. 经皮脊髓刺激对健康人蹬车引起的脊髓相互抑制有阶段性调节作用。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2024-09-27 DOI: 10.1007/s00221-024-06926-4

Keita Takano, Tomofumi Yamaguchi, Kano Kikuma, Kohei Okuyama, Natsuki Katagiri, Takatsugu Sato, Shigeo Tanabe, Kunitsugu Kondo, Toshiyuki Fujiwara

{"title":"Transcutaneous spinal cord stimulation phase-dependently modulates spinal reciprocal inhibition induced by pedaling in healthy individuals.","authors":"Keita Takano, Tomofumi Yamaguchi, Kano Kikuma, Kohei Okuyama, Natsuki Katagiri, Takatsugu Sato, Shigeo Tanabe, Kunitsugu Kondo, Toshiyuki Fujiwara","doi":"10.1007/s00221-024-06926-4","DOIUrl":"https://doi.org/10.1007/s00221-024-06926-4","url":null,"abstract":"Reciprocal inhibition (RI) between leg muscles is crucial for smooth movement. Pedaling is a rhythmic movement that can increase RI in healthy individuals. Transcutaneous spinal cord stimulation (tSCS) stimulates spinal neural circuits by targeting the afferent fibers. Pedaling with simultaneous tSCS may modulate the plasticity of the spinal neural circuit and alter neural activity based on movement and muscle engagement. This study investigated the RI changes after pedaling and tSCS and determined the phase of pedaling in which tSCS should be applied for optimal RI modulation in healthy individuals. Eleven subjects underwent three interventions: pedaling combined with tSCS during the early phase of lower extension (phase 1), pedaling combined with tSCS during the late phase of lower flexion (phase 4) of the pedaling cycle, and pedaling combined with sham tSCS. The RI from the tibialis anterior to the soleus muscle was assessed before, immediately after, 15 min, and 30 min after the intervention. RI increased immediately after phase 4 and pedaling combined with sham tSCS, whereas no changes were observed after phase 1. These results demonstrate that tSCS modulates RI changes induced by pedaling in a stimulus phase-dependent manner in healthy individuals. However, the mechanism involved in this intervention needs to be explored to achieve higher efficacy.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142344452","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

Short-term cortical activation changes associated with postural compensation in swallowing. 与吞咽姿势补偿相关的大脑皮层短期激活变化

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2024-09-25 DOI: 10.1007/s00221-024-06928-2

Kelsey L Murray, Seng Mun Wong, Erin Kamarunas

{"title":"Short-term cortical activation changes associated with postural compensation in swallowing.","authors":"Kelsey L Murray, Seng Mun Wong, Erin Kamarunas","doi":"10.1007/s00221-024-06928-2","DOIUrl":"https://doi.org/10.1007/s00221-024-06928-2","url":null,"abstract":"Compensatory strategies used to treat dysphagia, like the chin-down and chin-up positions, are often employed by speech-language pathologists to enhance swallowing safety. However, their effects on cortical neural responses remain unclear. This study aimed to investigate the cortical hemodynamic responses to swallowing across three head positions -chin-down, chin-neutral, and chin-up - using functional near-infrared spectroscopy (fNIRS) in the bilateral precentral and postcentral gyrus regions of interest. Twenty-six healthy adults completed 32 swallows of 5 ml water in each head position. Results revealed short-term cortical activation increases for chin-up swallows compared to both chin-neutral (mean difference = 1.2, SE = 0.18, p = .048) and chin-down swallows (mean difference = 0.76, SE = 0.18, p = .009). These findings suggest that postural changes during swallowing induce immediate neural adaptations in people without swallowing difficulty. These modifications likely reflect the necessary sensory and neuromuscular adaptations required for safe swallowing in different head positions, with less hyolaryngeal movement needed for a chin-down swallow and more movement needed for a chin-up swallow. While challenging swallow conditions, like the chin-up, may offer promising therapeutic potential, caution is warranted considering the associated safety risk, and further investigation is needed. This study provides insights into the immediate effects of head positions on cortical activity during swallowing and highlights avenues for future research in dysphagia rehabilitation.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142344451","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

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2024-09-25 DOI: 10.1007/s00221-024-06919-3

Shuyuan Feng, Lin Ding, Mingliang Wang, Jianing Zhang, Yuqing Yuan, Peng Zhang, Xuejun Bai

{"title":"Can similarity of autistic traits promote neural synchronization?","authors":"Shuyuan Feng, Lin Ding, Mingliang Wang, Jianing Zhang, Yuqing Yuan, Peng Zhang, Xuejun Bai","doi":"10.1007/s00221-024-06919-3","DOIUrl":"https://doi.org/10.1007/s00221-024-06919-3","url":null,"abstract":"People with similar levels of autistic traits are reported to exhibit better interactions than those with larger differences in autistic traits. However, whether this \"similarity effect\" exists at the neural level remains unclear. To address this gap, the present study employed functional near-infrared spectroscopy (fNIRS) hyperscanning technology to assess inter-brain synchronization (IBS) during naturalistic conversations among dyads with three types of autistic trait combinations (20 high-high, 22 high-low, and 18 low-low dyads). The results revealed that the high-high dyads exhibited significantly lower IBS in the right temporoparietal junction (rTPJ) region compared to the low-low dyads, with no significant differences observed between the high-low group and the other two groups. Moreover, though dyadic differences in conversation satisfaction were positively correlated with dyadic autistic trait differences, IBS only showed a significant negative correlation with the dyadic average autistic trait scores and no significant correlation with the dyadic difference scores of autistic traits. These findings suggest that dyads with high autistic traits may have shared feelings about conversations, but cannot produce IBS through successful mutual prediction and understanding.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142344447","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

Reflections on probability theory, philosophy of science, and good/bad/ugly gatekeeping: A rebuttal to Parr, Gallicchio, and Wood. 对概率论、科学哲学和好/坏/丑把关的思考：对 Parr、Gallicchio 和 Wood 的反驳。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2024-09-25 DOI: 10.1007/s00221-024-06917-5

Edson Filho, Dhruv Raman

引用次数: 0

I tap myself, and you tap me: bimanual predictive and reactive grip force control as a function of age. 我拍自己，你拍我：双臂预测性和反应性握力控制与年龄有关。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2024-09-25 DOI: 10.1007/s00221-024-06925-5

Sahian Numata, Atika Omerani, Catherine Mercier, Maxime T Robert, Martin Simoneau

{"title":"I tap myself, and you tap me: bimanual predictive and reactive grip force control as a function of age.","authors":"Sahian Numata, Atika Omerani, Catherine Mercier, Maxime T Robert, Martin Simoneau","doi":"10.1007/s00221-024-06925-5","DOIUrl":"https://doi.org/10.1007/s00221-024-06925-5","url":null,"abstract":"We investigated the effect of age on predictive and reactive grip force control. We compared the coupling between the grip and load force when participants tapped the object (i.e., self-TAP condition) held in their contralateral hand or when the experimenter tapped the object (i.e., external-TAP condition). Participants held the object either with their dominant or their non-dominant hands. Neurophysiological changes occur in the brain throughout childhood, so we hypothesized that these changes would make motor prediction less reliable in adolescents than adults. We compared adolescents' predictive and reactive grip force control (n = 19) to adults (n = 19). We quantified the coupling between grip and load forces using cross-correlation. The lags determined whether peak grip force occurred before (predictive control) or after (reactive control) peak load force. In the self-TAP condition, the change in grip force occurred significantly earlier in adults compared to adolescents by ~ 24 ms for the dominant and ~ 12 ms for the non-dominant hands. During the external-TAP condition, the peak grip force lagged the peak load force for both groups, but the lags were shorter for adolescents than adults for both hands. Smaller finger sizes with larger neural afferent density could enhance the cutaneous reflex responses caused by the sudden change in loading. For the self-TAP condition, results confirmed less efficient motor prediction in adolescents. Morphological and neurophysiological changes unfold in the developing brain during childhood; they can introduce variability into the neural circuits responsible for refining motor prediction.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142344449","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

Response and conflict expectations shape motor responses interactively. 反应和冲突预期相互作用，形成运动反应。

IF 1.7 4区医学

Experimental Brain Research Pub Date : 2024-09-24 DOI: 10.1007/s00221-024-06920-w

Annika E Sauter, Adam Zabicki, Thomas Schüller, Juan Carlos Baldermann, Gereon R Fink, Paola Mengotti, Simone Vossel

{"title":"Response and conflict expectations shape motor responses interactively.","authors":"Annika E Sauter, Adam Zabicki, Thomas Schüller, Juan Carlos Baldermann, Gereon R Fink, Paola Mengotti, Simone Vossel","doi":"10.1007/s00221-024-06920-w","DOIUrl":"https://doi.org/10.1007/s00221-024-06920-w","url":null,"abstract":"Efficient responses in dynamic environments rely on a combination of readiness and flexibility, regulated by anticipatory and online response control mechanisms. The latter are required when a motor response needs to be reprogrammed or when flanker stimuli induce response conflict and they are crucially modulated by anticipatory signals such as response and conflict expectations. The mutual influence and interplay of these control processes remain to be elucidated. Our behavioral study employed a novel combined response cueing/conflict task designed to test for interactive effects of response reprogramming and conflict resolution and their modulation by expectations. To this end, valid and invalid response cues were combined with congruent and incongruent target flankers. Expectations were modulated by systematically manipulating the proportions of valid versus invalid cues and congruent versus incongruent flanker stimuli in different task blocks. Reaction time and accuracy were assessed in thirty-one healthy volunteers. The results revealed response reprogramming and conflict resolution interactions for both behavioral measures, modulated by response and conflict expectations. Accuracy decreased disproportionally when invalidly cued targets with incongruent flankers were least expected. These findings support coordinated and partially overlapping anticipatory and online response control mechanisms within motor-cognitive networks.","PeriodicalId":12268,"journal":{"name":"Experimental Brain Research","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142307470","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