AttNIRS: Attentional Focus and Prefrontal Cortical Activation
Study Details
Study Description
Brief Summary
Attention may influence the motor performance and frontal activity. This study will examine the effect of different attentional focus : internal, external and divided attention (dual task) on prefrontal cortical activation (fNIRS) and on gait performance. Thirty young healthy voluntary adults will participate in this study.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
N/A |
Detailed Description
The subjects will be guided to walk at a normal pace while maintaining the required attentional focus. They will walk on 30 m five times in each of the four different focus conditions :1) no instructions about the attentional focus 2) internal focus on their feet movements, 3) external focus on two lines drawn on the floor, 4) divided attention (walking while performing an arithmetic task). A fNIRS system will be used for the prefrontal cortex activation evaluation and FeetMe soles for gait analyses.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Experimental: Young healthy voluntary adults 30 young healthy voluntary adults |
Device: Functional Near-Infrared Spectroscopy (fNIRS)
The hemodynamic response in prefrontal cortex will be measured using an Octamon+ system (Artinis). Eight emission and two detector probes will be arranged on the participant's forehead.
|
Outcome Measures
Primary Outcome Measures
- Effects of different attentional conditions on hemodynamic response in prefrontal cortex [Baseline]
Oxyhemoglobin variations in prefrontal cortex measured with fNIRS
- Effects of different attentional conditions on hemodynamic response in prefrontal cortex [Baseline]
Deoxyhemoglobin variations in prefrontal cortex measured with fNIRS
Secondary Outcome Measures
- Effects of speed on gait. [Baseline]
Gait parameters will be measured with connected soles FeetMe ® : speed
- Effects of cadence on gait. [Baseline]
Gait parameters will be measured with connected soles FeetMe ® : cadence
- Effects of stride length on gait. [Baseline]
Gait parameters will be measured with connected soles FeetMe ® : stride length
- Effects of double support time on gait. [Baseline]
Gait parameters will be measured with connected soles FeetMe ® : double support time
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Man or woman
-
18 -30 years old
-
Informed consent obtained
-
Free from any neurological, cardiologic, rheumatologic disorders.
Exclusion Criteria:
-
Assisted walker.
-
Disorders affecting gait.
-
Concomitant medication likely to interfere with the results.
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | CHR Orléans | Orléans | France | 45067 |
Sponsors and Collaborators
- Centre Hospitalier Régional d'Orléans
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
- Farid L, Jacobs D, Do Santos J, Simon O, Gracies JM, Hutin E. FeetMe® Monitor-connected insoles are a valid and reliable alternative for the evaluation of gait speed after stroke. Top Stroke Rehabil. 2021 Mar;28(2):127-134. doi: 10.1080/10749357.2020.1792717. Epub 2020 Jul 13.
- Herold F, Wiegel P, Scholkmann F, Thiers A, Hamacher D, Schega L. Functional near-infrared spectroscopy in movement science: a systematic review on cortical activity in postural and walking tasks. Neurophotonics. 2017 Oct;4(4):041403. doi: 10.1117/1.NPh.4.4.041403. Epub 2017 Aug 1. Review.
- Holtzer R, Mahoney JR, Izzetoglu M, Izzetoglu K, Onaral B, Verghese J. fNIRS study of walking and walking while talking in young and old individuals. J Gerontol A Biol Sci Med Sci. 2011 Aug;66(8):879-87. doi: 10.1093/gerona/glr068. Epub 2011 May 17.
- Kal EC, van der Kamp J, Houdijk H. External attentional focus enhances movement automatization: a comprehensive test of the constrained action hypothesis. Hum Mov Sci. 2013 Aug;32(4):527-39. doi: 10.1016/j.humov.2013.04.001. Epub 2013 Jun 30.
- Kim SA, Ryu YU, Shin HK. The effects of different attentional focus on poststroke gait. J Exerc Rehabil. 2019 Aug 28;15(4):592-596. doi: 10.12965/jer.1938360.180. eCollection 2019 Aug.
- Lu CF, Liu YC, Yang YR, Wu YT, Wang RY. Maintaining Gait Performance by Cortical Activation during Dual-Task Interference: A Functional Near-Infrared Spectroscopy Study. PLoS One. 2015 Jun 16;10(6):e0129390. doi: 10.1371/journal.pone.0129390. eCollection 2015.
- Pelicioni PHS, Tijsma M, Lord SR, Menant J. Prefrontal cortical activation measured by fNIRS during walking: effects of age, disease and secondary task. PeerJ. 2019 May 3;7:e6833. doi: 10.7717/peerj.6833. eCollection 2019.
- Shafizadeh M, Platt GK, Mohammadi B. Effects of different focus of attention rehabilitative training on gait performance in Multiple Sclerosis patients. J Bodyw Mov Ther. 2013 Jan;17(1):28-34. doi: 10.1016/j.jbmt.2012.04.005. Epub 2012 May 10.
- Udina C, Avtzi S, Durduran T, Holtzer R, Rosso AL, Castellano-Tejedor C, Perez LM, Soto-Bagaria L, Inzitari M. Functional Near-Infrared Spectroscopy to Study Cerebral Hemodynamics in Older Adults During Cognitive and Motor Tasks: A Review. Front Aging Neurosci. 2020 Jan 21;11:367. doi: 10.3389/fnagi.2019.00367. eCollection 2019. Review.
- Wood JN, Grafman J. Human prefrontal cortex: processing and representational perspectives. Nat Rev Neurosci. 2003 Feb;4(2):139-47. Review.
- Wulf G, Höß M, Prinz W. Instructions for motor learning: differential effects of internal versus external focus of attention. J Mot Behav. 1998 Jun;30(2):169-79. doi: 10.1080/00222899809601334.
- Yogev-Seligmann G, Hausdorff JM, Giladi N. The role of executive function and attention in gait. Mov Disord. 2008 Feb 15;23(3):329-42; quiz 472. Review.
- Yogev-Seligmann G, Rotem-Galili Y, Mirelman A, Dickstein R, Giladi N, Hausdorff JM. How does explicit prioritization alter walking during dual-task performance? Effects of age and sex on gait speed and variability. Phys Ther. 2010 Feb;90(2):177-86. doi: 10.2522/ptj.20090043. Epub 2009 Dec 18.
- CHRO 2020-22