PMID- 21096375 OWN - NLM STAT- MEDLINE DCOM- 20110406 LR - 20200928 IS - 2375-7477 (Print) IS - 2375-7477 (Linking) VI - 2010 DP - 2010 TI - Recognition and inhibition of dorsal horn nociceptive signals within a closed-loop system. PG - 1535-8 LID - 10.1109/IEMBS.2010.5626830 [doi] AB - We implemented an integrated system that can acquire neuronal signals from spinal cord dorsal horn neurons, wirelessly transmit the signals to a computer, and recognize the nociceptive signals from three different mechanical stimuli (brush, pressure and pinch). Positive peak detection method was chosen to distinguish between signal spikes. The inter spike intervals (ISIs) were calculated from the identified action potentials (APs) and fed into a numerical array called cluster. When the sum of the ISIs in the cluster reached a critical level, the program recognized the recorded signals as nociceptive inputs. The user has the flexibility to tune both the cluster size and critical threshold for individual's need to reach optimization in pain signal recognition. The program was integrated with a wireless neurostimulator to form a feedback loop to recognize and inhibit nociceptive signals. FAU - Farajidavar, Aydin AU - Farajidavar A AD - Department of Bioengineering, University of Texas at Arlington, TX 76019, USA. aydin.farajidavar@mavs.uta.edu FAU - Hagains, Christopher E AU - Hagains CE FAU - Peng, Yuan B AU - Peng YB FAU - Behbehani, Khosrow AU - Behbehani K FAU - Chiao, J-C AU - Chiao JC LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PL - United States TA - Annu Int Conf IEEE Eng Med Biol Soc JT - Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference JID - 101763872 SB - IM MH - Animals MH - Biofeedback, Psychology/*instrumentation MH - Diagnosis, Computer-Assisted/instrumentation MH - Electric Stimulation Therapy/*instrumentation MH - Electrodes, Implanted MH - Electrodiagnosis/*instrumentation MH - Equipment Design MH - Equipment Failure Analysis MH - Male MH - Neural Inhibition MH - Pain/*diagnosis/physiopathology/*prevention & control MH - *Posterior Horn Cells MH - Rats MH - Rats, Sprague-Dawley MH - Telemetry/*instrumentation MH - Therapy, Computer-Assisted/instrumentation EDAT- 2010/11/26 06:00 MHDA- 2011/04/07 06:00 CRDT- 2010/11/25 06:00 PHST- 2010/11/25 06:00 [entrez] PHST- 2010/11/26 06:00 [pubmed] PHST- 2011/04/07 06:00 [medline] AID - 10.1109/IEMBS.2010.5626830 [doi] PST - ppublish SO - Annu Int Conf IEEE Eng Med Biol Soc. 2010;2010:1535-8. doi: 10.1109/IEMBS.2010.5626830.