Journal: Journal of neural engineering

Article Title: Development of sEMG sensors and algorithms for silent speech recognition

doi: 10.1088/1741-2552/aac965

Figure Lengend Snippet: (A) The word error rate (WER) as a function of the best combination for each sensor subset. (B) Depiction of the final 8-sensor system placed on a subject. (C) Rendering of the prototype sEMG facial sensor array Trigno™ Quattro (Delsys, Inc).

Article Snippet: sEMG signals were recorded from speech articulator muscles, first using tethered DE 2.1 sensors (Delsys, Inc, Natick, USA) to acquire the data for Corpus 1 and 2, and then using prototype wireless Trigno ™ Mini sensors (Delsys, Inc, Natick, USA) specifically designed to provide a miniaturized sensor interface that better conforms to the face and neck and mitigates sources of movement artifact and sweat-build-up during the relatively longer experiments needed for Corpus 3 (refer to Data Corpus descriptions below).

Techniques:

Journal: medRxiv

Article Title: Decoding natural gait cycle in Parkinson’s disease from cortico-subthalamic field potentials

doi: 10.1101/2022.05.02.22274438

Figure Lengend Snippet: (A) Illustration of gait events and phases during a single gait cycle, aligned to left heel strike (0% gait cycle). (B) Heel strike (squares) and toe off (circles) gait events were detected from the left (black) and right (gray) force sensitive resistor data. Heel strikes were detected when the heel force (solid line) exceeded a threshold (dotted line), and toe offs were detected when toe force (dashed line) fell below the threshold. (C) Example local field potential recordings from both STN and M1 synchronized to a gait cycle.

Article Snippet: The Delsys sensors were from the Trigno and Avanti lines and included: two Avanti force sensitive resistor (FSR) adapters, two Avanti goniometer adapters, and two Trigno surface electromyography (EMG) sensors with a built-in accelerometer.

Techniques: