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The details of past actions on a smartphone touchscreen are reflected by intrinsic sensorimotor dynamics.
Balerna M, Ghosh A. Balerna M, et al. NPJ Digit Med. 2018 Mar 7;1:4. doi: 10.1038/s41746-017-0011-3. eCollection 2018. NPJ Digit Med. 2018. PMID: 31304290 Free PMC article.
Here, we recorded all touchscreen smartphone interactions at a sub-second precision and show that the unconstrained day-to-day behavior captured on the phone reflects in the simple sensorimotor computations measured in the laboratory. ...
Here, we recorded all touchscreen smartphone interactions at a sub-second precision and show that the unconstrained day-to-day behavi …
Time to be "smart"-Opportunities Arising From Smartphone-Based Behavioral Analysis in Daily Patient Care.
Akeret K, Vasella F, Geisseler O, Dannecker N, Ghosh A, Brugger P, Regli L, Stienen MN. Akeret K, et al. Front Behav Neurosci. 2018 Dec 4;12:303. doi: 10.3389/fnbeh.2018.00303. eCollection 2018. Front Behav Neurosci. 2018. PMID: 30568582 Free PMC article.
Due to their complex nature, comprehensive neuropsychological evaluations are needed, which are time-consuming, resource-intensive and do not adequately account for daily or hourly fluctuations of a patient's condition. ...As smartphone-based assessment allows for continuo …
Due to their complex nature, comprehensive neuropsychological evaluations are needed, which are time-consuming, resource-intensive and do no …
Use-dependent cortical processing from fingertips in touchscreen phone users.
Gindrat AD, Chytiris M, Balerna M, Rouiller EM, Ghosh A. Gindrat AD, et al. Curr Biol. 2015 Jan 5;25(1):109-16. doi: 10.1016/j.cub.2014.11.026. Epub 2014 Dec 23. Curr Biol. 2015. PMID: 25542777
Such plasticity of the fingertip sensory representation is not limited to extraordinary skills and occurs in monkeys trained to repetitively grasp and release a handle as well. ...
Such plasticity of the fingertip sensory representation is not limited to extraordinary skills and occurs in monkeys trained to repetitively …
Sensorimotor organization of a sustained involuntary movement.
De Havas J, Ghosh A, Gomi H, Haggard P. De Havas J, et al. Front Behav Neurosci. 2015 Jul 28;9:185. doi: 10.3389/fnbeh.2015.00185. eCollection 2015. Front Behav Neurosci. 2015. PMID: 26283934 Free PMC article.
The Kohnstamm phenomenon (where a sustained, hard push produces subsequent involuntary arm raising) is a useful experimental model for exploring differences between voluntary and involuntary movement. ...Comparison to matched voluntary movements revealed a pr …
The Kohnstamm phenomenon (where a sustained, hard push produces subsequent involuntary arm raising) is a useful experimental m …
Rapid functional reorganization of the forelimb cortical representation after thoracic spinal cord injury in adult rats.
Sydekum E, Ghosh A, Gullo M, Baltes C, Schwab M, Rudin M. Sydekum E, et al. Neuroimage. 2014 Feb 15;87:72-9. doi: 10.1016/j.neuroimage.2013.10.045. Epub 2013 Oct 31. Neuroimage. 2014. PMID: 24185021
The extent of map increase was variable between animals, and some animals showed a reduction in map size. However, at three or seven days after injury a significant enhancement of the forelimb representation was evident in all the animals. In a behavioral tes …
The extent of map increase was variable between animals, and some animals showed a reduction in map size. However, at three or seven …
Altered cortical activation from the hand after facial botulinum toxin treatment.
Haenzi S, Stefanics G, Lanaras T, Calcagni M, Ghosh A. Haenzi S, et al. Ann Clin Transl Neurol. 2014 Jan;1(1):64-8. doi: 10.1002/acn3.21. Epub 2013 Nov 25. Ann Clin Transl Neurol. 2014. PMID: 25356383 Free PMC article.
In this prospective observational study we used electroencephalography (EEG) to measure cortical activity evoked by tactile stimulation of the hands before and after botulinum toxin-A-induced facial paralysis. We found a reduction in the tactile event-related potent …
In this prospective observational study we used electroencephalography (EEG) to measure cortical activity evoked by tactile stimulation of t …
Somatotopic astrocytic activity in the somatosensory cortex.
Ghosh A, Wyss MT, Weber B. Ghosh A, et al. Glia. 2013 Apr;61(4):601-10. doi: 10.1002/glia.22458. Epub 2013 Jan 22. Glia. 2013. PMID: 23339077
Astrocytes play a crucial role in maintaining neuronal function and monitoring their activity. According to neuronal activity maps, the body is represented topographically in the somatosensory cortex. ...The signal took 6 s to peak after the onset of a 2 Hz and 2 s …
Astrocytes play a crucial role in maintaining neuronal function and monitoring their activity. According to neuronal activity maps, t …
Withdrawal of voluntary inhibition unravels the off state of the spontaneous blink generator.
Moraitis T, Ghosh A. Moraitis T, et al. Neuropsychologia. 2014 Dec;65:279-86. doi: 10.1016/j.neuropsychologia.2014.09.010. Epub 2014 Sep 16. Neuropsychologia. 2014. PMID: 25218166
The after-blink latency was not related to the duration of the inhibition, and inhibiting even for a small fraction of the mean inter-blink interval generated an after-blink time-locked to the inhibition offset. ...
The after-blink latency was not related to the duration of the inhibition, and inhibiting even for a small fraction of the mean inter …
The spinal reflex cannot be perceptually separated from voluntary movements.
Ghosh A, Haggard P. Ghosh A, et al. J Physiol. 2014 Jan 1;592(1):141-52. doi: 10.1113/jphysiol.2013.260588. Epub 2013 Sep 23. J Physiol. 2014. PMID: 24060990 Free PMC article.
In one condition, participants were instructed to kick back in response to a tendon tap. The results were compared to reflexes in a resting baseline condition without voluntary movement. In a further condition, participants were instructed to kick forwards af …
In one condition, participants were instructed to kick back in response to a tendon tap. The results were compared to reflexes in …
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