1. Dr. med. Sanjay Chugh Neuro Rehab Services, New Delhi, India Dr. Alakananda Banerjee (P.T.) Dharma Foundation of India, New Delhi, India Dr. Anirban Dutta Georg-August-University, Goettingen, Germany and INRIA, France Effects of transcranial direct current stimulation on functional reach tasks

2. Overview Introduction: Transcranial Direct Current Stimulation Motivation: Standing balance during reaching tasks in elderly Methods: Experimental setup Results Future work Discussion

3. Introduction: Transcranial Direct Current Stimulation

4. Motivation: Adjuvant tDCS treatment for postural training in elderly

5. Methods: Experimental setup 5 subjects for preliminary study on healthy Age: 22-33 All males Right leg dominant EEG, EMG, CoP, body kinematics Microsoft Kinect For more information on the MS Kinect and Wii Balance Board data acquisition, please refer to our “Low- cost visual postural feedback with Wii Balance Board and Microsoft Kinect - a feasibility study,” IEEE- EMBS POCHT 2013 conference, Bangalore, India. EEG neuroheadset

6. Results: The anodal tDCS strongly (p=0.0000) affected the maximum CoP excursions but not the return reaction time while the lean-direction affected (p=0.0000) both the maximum CoP excursions and the return reaction time. The post hoc tests showed that tDCS primarily increased (95% confidence interval) maximum CoP excursions for the right side movements.

7. Future work: Anodal tDCS as an adjuvant treatment under eHealth For more information on RxAlarm and eHealth Android Apps, please refer to https://play.google.com/store/apps/details?id=com.gnansys.rxalarm and http://www.youtube.com/watch?v=uSCaKlr5YC8 Mobile phone based daily tele-monitoring (using Google drive or Dropbox cloud storage) of quantitative EEG (EPOC EEG headset), whole body kinematics (MS Kinect), and CoP trajectories (Wii Balance Board) during functional reach tasks (e.g. Tai Chi training etc.) in community dwelling elderly. Dosing of medicines and anodal tDCS as an adjuvant treatment (when needed) under physician’s guidance using RxAlarm (eHealth) mobile phone application

8. Discussions: The preliminary results showed that tDCS-induced increase in the cortical excitability of right tibialis anterior muscle, improved the maximum CoP excursions for right side movements. An appropriate adjuvant treatment with tDCS is needed to facilitate postural training in elderly using telemonitoring with EPOC EEG headset, MS Kinect and Wii Balance Board under an e-Health paradigm, which needs further investigation. For more information on the MS Kinect and Wii Balance Board data acquisition, please refer to our “Low- cost visual postural feedback with Wii Balance Board and Microsoft Kinect - a feasibility study,” IEEE- EMBS POCHT 2013 conference, Bangalore, India.

9. Questions?