Imagined Movement

1973 ◽  
Author(s):  
Hayne W. Reese
Keyword(s):  
Imagined Movement

scholarly journals Calculation and Analysis of Microstate Related to Variation in Executed and Imagined Movement of Force of Hand Clenching

2018 ◽  
Vol 2018 ◽  
pp. 1-15 ◽  
Author(s):  
Yunfa Fu ◽  
Jian Chen ◽  
Xin Xiong
Keyword(s):  
Grip Force ◽  
Activity Patterns ◽  
Hand Movement ◽  
Local Maximum ◽  
Topographic Map ◽  
Mu Rhythm ◽  
Global Field Power ◽  
Frequency Bands ◽  
Microstate Analysis ◽  
Imagined Movement

Objective. In order to investigate electroencephalogram (EEG) instantaneous activity states related to executed and imagined movement of force of hand clenching (grip force: 4 kg, 10 kg, and 16 kg), we utilized a microstate analysis in which the spatial topographic map of EEG behaves in a certain number of discrete and stable global brain states. Approach. Twenty subjects participated in EEG collection; the global field power of EEG and its local maximum were calculated and then clustered using cross validation and statistics; the 4 parameters of each microstate (duration, occurrence, time coverage, and amplitude) were calculated from the clustering results and statistically analyzed by analysis of variance (ANOVA); finally, the relationship between the microstate and frequency band was analyzed. Main Results. The experimental results showed that all microstates related to executed and imagined grip force tasks were clustered into 3 microstate classes (A, B, and C); these microstates generally transitioned from A to B and then from B to C. With the increase of the target value of executed and imagined grip force, the duration and time coverage of microstate B gradually decreased, while these parameters of microstate C gradually increased. The occurrence times of microstate B and C related to executed grip force were significantly more than those related to imagined grip force; furthermore, the amplitudes of these 3 microstates related to executed grip force were significantly greater than those related to imagined grip force. The correlation coefficients between the microstates and the frequency bands indicated that the microstates were correlated to mu rhythm and beta frequency bands, which are consistent with event-related desynchronization/synchronization (ERD/ERS) phenomena of sensorimotor rhythm. Significance. It is expected that this microstate analysis may be used as a new method for observing EEG instantaneous activity patterns related to variation in executed and imagined grip force and also for extracting EEG features related to these tasks. This study may lay a foundation for the application of executed and imagined grip force training for rehabilitation of hand movement disorders in patients with stroke in the future.

P33-25 Activated area of imagined movement: MEG study

2010 ◽  
Vol 121 ◽  
pp. S304-S305
Author(s):  
N. Tsuyuguchi ◽  
T. Uda ◽  
Y. Shigihara ◽  
K. Ohata
Keyword(s):  
Imagined Movement

Effect of Imagined Movement Speed on Subsequent Motor Performance

2008 ◽  
Vol 40 (2) ◽  
pp. 117-132 ◽  
Author(s):  
Magali Louis ◽  
Aymeric Guillot ◽  
Sylvain Maton ◽  
Julien Doyon ◽  
Christian Collet
Keyword(s):  
Motor Performance ◽  
Movement Speed ◽  
Imagined Movement

What Implications do Forms of Vitality Have for Clinical Theory and Practice?

2015 ◽  
Author(s):  
Daniel N. Stern
Keyword(s):  
Local Level ◽  
Theory And Practice ◽  
Phenomenal Experience ◽  
Clinical Theory ◽  
Verbal Descriptions ◽  
Imagined Movement ◽  
Forms Of Vitality

Chapter 7 discusses the implications that forms of vitality have for clinical theory and practice. It includes the roles played by vitality forms in psychotherapy – vitality forms and spontaneous talking, dynamic forms of vitality as paths to memory, vitality dynamics as a path to ‘reconstructed’ phenomenal experience, vitality forms and imagined movement, including verbal descriptions, vitality forms and the ‘local level’, vitality forms and intersubjectivity, vitality forms in identification, authenticity, and aliveness.

Evaluating User Experience of Actual and Imagined Movement in BCI Gaming

2014 ◽  
pp. 266-280 ◽  
Author(s):  
Bram van de Laar ◽  
Boris Reuderink ◽  
Danny Plass-Oude Bos ◽  
Dirk Heylen
Keyword(s):  
User Experience ◽  
Brain Computer Interfaces ◽  
Disabled People ◽  
Computer Interfaces ◽  
Actual Movement ◽  
Game Console ◽  
Imagined Movement

Most research on Brain-Computer Interfaces (BCI) focuses on developing ways of expression for disabled people who are not able to communicate through other means. Recently it has been shown that BCI can also be used in games to give users a richer experience and new ways to interact with a computer or game console. This paper describes research conducted to find out what the differences are between using actual and imagined movement as modalities in a BCI game. Results show that there are significant differences in user experience and that actual movement is a more robust way of communicating through a BCI.

Effects of subthalamic nucleus stimulation on actual and imagined movement in Parkinson's disease : a PET study

2002 ◽  
Vol 249 (12) ◽  
pp. 1689-1698 ◽  
Author(s):  
St�phane Thobois ◽  
Peter Dominey ◽  
Val�rie Fraix ◽  
Patrick Mertens ◽  
Marc Guenot ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Subthalamic Nucleus ◽  
Subthalamic Nucleus Stimulation ◽  
Imagined Movement

scholarly journals Task Complexity Differentially Affects Executed and Imagined Movement Preparation: Evidence from Movement-Related Potentials

PLoS ONE ◽  
2010 ◽  
Vol 5 (2) ◽  
pp. e9284 ◽  
Author(s):  
Cornelia Kranczioch ◽  
Simon Mathews ◽  
Philip Dean ◽  
Annette Sterr
Keyword(s):  
Task Complexity ◽  
Movement Preparation ◽  
Related Potentials ◽  
Imagined Movement

scholarly journals Electromyography features during physical and imagined standing up in healthy young adults, Phitsanulok, Thailand

2020 ◽  
Vol 35 (1) ◽  
pp. 89-101
Author(s):  
Kanokwan Srisupornkornkool ◽  
Kanphajee Sornkaew ◽  
Kittithat Chatkanjanakool ◽  
Chayanit Ampairattana ◽  
Pariyanoot Pongtasom ◽  
...  
Keyword(s):  
Young Adults ◽  
Tibialis Anterior ◽  
Tibialis Anterior Muscle ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Voluntary Contraction ◽  
Medial Gastrocnemius ◽  
Content Type ◽  
Standing Up ◽  
Imagined Movement

PurposeTo compare the electromyography (EMG) features during physical and imagined standing up in healthy young adults.Design/methodology/approachTwenty-two participants (ages ranged from 20–29 years old) were recruited to participate in this study. Electrodes were attached to the rectus femoris, biceps femoris, tibialis anterior and the medial gastrocnemius muscles of both sides to monitor the EMG features during physical and imagined standing up. The %maximal voluntary contraction (%MVC), onset and duration were calculated.FindingsThe onset and duration of each muscle of both sides had no statistically significant differences between physical and imagined standing up (p > 0.05). The %MVC of all four muscles during physical standing up was statistically significantly higher than during imagined standing up (p < 0.05) on both sides. Moreover, the tibialis anterior muscle of both sides showed a statistically significant contraction before the other muscles (p < 0.05) during physical and imagined standing up.Originality/valueMuscles can be activated during imagined movement, and the patterns of muscle activity during physical and imagined standing up were similar. Imagined movement may be used in rehabilitation as an alternative or additional technique combined with other techniques to enhance the STS skill.

Mental Practice, Motor Performance, and the Late CNV

2004 ◽  
Vol 26 (3) ◽  
pp. 412-426 ◽  
Author(s):  
Dave Smith ◽  
Dave Collins
Keyword(s):  
Movement Time ◽  
Voluntary Contraction ◽  
Mental Practice ◽  
Motor Tasks ◽  
Control Groups ◽  
Abductor Digiti Minimi ◽  
Group A ◽  
And Control ◽  
Imagined Movement ◽  
Abduction Strength

The aim of these two studies was to examine the application of Lang’s (1979, 1985) bioinformational theory to the mental practice (MP) of a strength task, the maximal voluntary contraction of the abductor digiti minimi, and the MP of a computerized barrier knockdown task. Study 1 divided 18 males into three groups: a physical practice (PP) group; a stimulus and response proposition mental practice (SRP) group; and a stimulus proposition mental practice (SP) group. Each participant either physically or mentally practiced 40 contractions twice a week for 3 weeks, and electroencephalograms (EEGs) were recorded during testing sessions. All three groups significantly increased abduction strength, but there were no significant between-group differences in the magnitude of the improvements. In addition, late contingent negative variation (CNV) waves were apparent prior to both real and imagined movements in all conditions. Study 2 allocated 24 participants to PP, SRP, SP, and control groups. Participants performed 120 imaginary or actual barrier knockdown trials, with EEGs recorded as in Study 1. A Group × Test ANOVA for movement time revealed that the PP and SRP groups improved to a significantly greater degree than the SP and control groups. Also, the late CNV was observed prior to real and imagined movement in the SRP group, but not prior to imagined movement in the SP group. These results support bioinformational theory with respect to cognitively oriented motor tasks, but not strength tasks.

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