Topic 9

Question 1

What are three steps outlined for how actions are produced using a brain-machine interface?

Answer 1

1. Read/ Record brain activity
   non-invasive EEG, human
   Invasive: implanted electrodes, animal research, and limited human application
2. Use computer algorithm to match recorded signals ( brain activity) to actions
3. Send interpreted signal to effector (machine) to make the action

Question 2

what is the difference between passive and active control of a prosthetic? what are examples of these types of prosthetics?

Answer 2

Passive prosthetics: are not directly controlled by the user’s intentions. They might use springs or other mechanical mechanisms to provide basic functionality. An example is a prosthetic hand with a fixed grip.

Active Prosthetics: are controlled by the user, using signals from their muscles or brain.
-Movement-based control: use other limb movement to activate action
-Myoelectric control:
Use EMG from muscles to control functions of prosthetic
-superficial
-implanted
Train for action

Question 3

How is the idea of internal models related to BMI’s