Rhythmic Behavior

1. Xenopus swimming

2. locust Flight

3. leech swimming

4. CPGs

4.1. endogenous

4.2. network

4.2.1. reciprocal inhibition

4.2.2. recurrent cyclic inhibition

4.3. sensory feedback

4.3.1. part of the CPG

4.3.1.1. locust

4.3.2. not necessary

4.4. modulation by chemical signals

4.5. control by descending centers