Bottom: 2nd order surface models clusters points belonging to one slow wave wavefront in porcine stomach. Top: Isochrone contour maps illustrate patiotemporal spread of electrical activity for five successive wave fronts.
Hybrid-Insects Robots (Biobots): We design strategies and build neural-electric interfaces to control locomotion in various insects. We have studied and defined optimal stimulus parameters (amplitude, frequency, duration, waveform type) for piloting Madagascar hissing cockroaches along a desired path. We recently published a journal article describing our findings. Our current work focuses on wireless tracking of biobot cockroaches as they move through a 3-D maze. We have also previously made grasshoppers hop on command.
Left: Cultured neurons stained with Di-I beginning to richly network. Right: Functional connectivity map.
Erickson J., Herrera M., Bustamante M., Shingiro A., and Bowen T.(2015); Effective Stimulus Parameters for Directed Locomotion in Madagascar Hissing Cockroach Biobot. PLoS ONE 10(8):e0134348. doi: 10.1371/journal.pone.0134348 [www]
Erickson J., Velasco-Castedo R., Obioha C. Cheng L.K., Angeli, T.R. and O'Grady G. (2013); Automated Algorithm for GI Spike Burst Detection and Demonstration of Efficacy in Ischemic Small Intestine. Annals of Biomedical Engineering. doi: 10.1007/s10439-013-0812-8. [www]
Giampalmo S., Absher B., Bourne W.T., Steves L., Vodenski V., O'Donnell P., and Erickson J. (2011) Generation of Complex Motor Patterns in American Grasshopper Via Current Controlled Thoracic Electrical Interfacing. Conf. Proc. IEEE-EMBS 2011, 1275 - 1278, doi: IEMBS.2011.6090300. [pdf]
Erickson J., O'Grady G., Du P., Obioha C., Qiao W., Richards W.O., Bradshaw L.A., Pullan A.J., and Cheng L.K. (2009); Falling-Edge, Variable Threshold (FEVT) Method for the Automated Detection of Gastric Slow Wave Events in High-Resolution Serosal Electrode Recordings. Annals of Biomedical Engineering. 38(4): 1511-29, doi: 10.1007/s10439-009-9870-3. [www]
Erickson J., Tooker A., Tai Y-C., and Pine J.; (2008) The Neurochip: a parylene-based microdevice for non-invasive probing of cultured neural network connectivity at the single neuron level. J Neurosci. Meth. 175(1): 1-16. [pdf]