Neuromechatronics

1. Neuromechatronics Instructors: Malcolm A. MacIver Matt Tresch TA: Aimee Schultz

2. today • brief overview of electric organ discharges • what to do with acquired signals • how to make wiki entries • Aimee’s overview of data acquisition with MATLAB • tell me what you are thinking about for the mechatronic component • Look at the Post ’99 article briefly if you can • novelty responses are typically brief

3. electric fish signals • generated by modified muscle cells (myogenic electric organ) • generated by modified neuron (neurogenic electric organ) • used for communication and for electrolocation • different neural substrates for these • two distinct forms • pulse type • wave type • African and South American (unrelated!)

4. the electric organ discharge (EOD)(South American electric fish)

5. electroreceptor distribution ~14,000 tuberous electroreceptor organs electric organ Based on Carr & Maler (1982)

6. empirically measured electric field around A. albifrons (Data: Assad & Rasnow)

7. electric field (field data set: Assad & Rasnow)

9. infrared video

10. afferent neurophysiology

11. neural signal recording 1 • • • 13,857

12. relation to the CNS

13. what to do with acquired signals • During lab, you will • acquire EODs and novelty responses in the quasi-restrained elephant nose • do some signal analysis to achieve • Fig 1 of Post & von der Emde 1999 • “interspike” interval histogram

14. interspike interval histograms • a typical method for looking at basic properties of spike trains in neural recordings

15. admin stuff • how to make wiki entries • groups • reichardt – southwest rig • Alex Birdwell • Serge Weydert • James Rebesco • watanabe – west rig • Blythe Towal • Katie Muse • dickinson – northwest rig • Brian Quist • Aaron Ferber • Brian DeNardo