Volume 21, Issue 1 (2024)
ioh 2024, 21(1): 173-190 |
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Research code: 22833
Ethics code: IR.IUMS.REC.1401.102
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Ghasemi M, Ziafati S, Garosi E, Hosseini Baharanchi F S, Sharifi I, Tayebzadeh S M H et al . The effect of transcranial Direct Current Stimulation (tDCS) on fine motor skill of hand in a human-robot interactive task. ioh 2024; 21 (1) :173-190
URL: http://ioh.iums.ac.ir/article-1-3617-en.html
URL: http://ioh.iums.ac.ir/article-1-3617-en.html
Mohammad Ghasemi 
, Sadegh Ziafati , Ehsan Garosi * , Fatemeh Sadat Hosseini Baharanchi , Iman Sharifi , Seyed Mohammad Hossein Tayebzadeh , Zeynab Ezzati Babi
, Sadegh Ziafati , Ehsan Garosi * , Fatemeh Sadat Hosseini Baharanchi , Iman Sharifi , Seyed Mohammad Hossein Tayebzadeh , Zeynab Ezzati Babi
Iran University of Medical Sciences , eh.garosi@gmail.com
Abstract: (159 Views)
Introduction: Despite the significant advances in robotics in industrial, medical, military, and service fields, the role of human agent for optimal control of robots is still important. In this regard, anodal transcranial Direct Current Stimulation (tDCS) is proposed as an intervention with the potential to improve cognitive-motor performance in the field of human-robot interaction. The study aim to explore how anodal tDCS could improve fine motor skill in a task that involved interacting with a robotic arm.
Method: In this laboratory study, 40 healthy adults were asked to perform an object transfer task by a robotic arm in test sessions with sham (control group) and real (intervention group) anodal tDCS. Before and after sham and real stimulation, the the intelligent circuit of the robotic arm recorded the performance of the participants by such indices including the number of errors (transfer, return and total error), error duration, number of transferred objects, and number of correct transferred objects. The effects of anodal tDCS on the changes in performance indicators between and within the study groups (difference between pre and post anodal tDCS) were compared considering the significance level of p<0.05.
Results: The within-group comparison showed that the number of transferred objects and the number of return errors before and after anodal tDCS (real and sham) had a significant improvement trend. Also, the error duration and the number of correct transferred objects were significant for real and sham stimulation, respectively. However, the comparison of the mean differences of post-test and pre-test scores for all variables of the study indicated no significant statistical difference between the intervention and control groups.
Conclusion: The results suggest that anodal tDCS did not have a specific effect on hand motor skill in a human-robot interactive task, but rather a general effect on the learning and performance of the task. This implies that anodal tDCS may not be a suitable intervention for enhancing fine manual motor control and coordination with a robotic arm, but rather for improving cognitive-motor processes involved in the task. This study contributes to the understanding of the potential applications of anodal tDCS in the field of human-robot interaction.
Method: In this laboratory study, 40 healthy adults were asked to perform an object transfer task by a robotic arm in test sessions with sham (control group) and real (intervention group) anodal tDCS. Before and after sham and real stimulation, the the intelligent circuit of the robotic arm recorded the performance of the participants by such indices including the number of errors (transfer, return and total error), error duration, number of transferred objects, and number of correct transferred objects. The effects of anodal tDCS on the changes in performance indicators between and within the study groups (difference between pre and post anodal tDCS) were compared considering the significance level of p<0.05.
Results: The within-group comparison showed that the number of transferred objects and the number of return errors before and after anodal tDCS (real and sham) had a significant improvement trend. Also, the error duration and the number of correct transferred objects were significant for real and sham stimulation, respectively. However, the comparison of the mean differences of post-test and pre-test scores for all variables of the study indicated no significant statistical difference between the intervention and control groups.
Conclusion: The results suggest that anodal tDCS did not have a specific effect on hand motor skill in a human-robot interactive task, but rather a general effect on the learning and performance of the task. This implies that anodal tDCS may not be a suitable intervention for enhancing fine manual motor control and coordination with a robotic arm, but rather for improving cognitive-motor processes involved in the task. This study contributes to the understanding of the potential applications of anodal tDCS in the field of human-robot interaction.
Keywords: transcranial Direct Current Stimulation (tDCS), primary motor cortex, motor skills, human-robot interaction
Type of Study: Research |
Subject:
Ergonomics
Received: 2024/01/31 | Accepted: 2024/11/16 | Published: 2024/05/30
Received: 2024/01/31 | Accepted: 2024/11/16 | Published: 2024/05/30
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