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- Date: Sun, 13 Dec 1992 08:52:50 -0700
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- From: "William T. Powers" <POWERS_W%FLC@VAXF.COLORADO.EDU>
- Subject: Camma and alpha coactivation
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-
- [From Bill Powers (921213.0845)]
-
- Avery Andrews (921213) --
-
- Avery, you also asked for a source on the combining of gamma and
- alpha reference signals for the Little Man model.
-
- A reference is McMahon, Thomas A.; _Muscles, Reflexes, and
- Locomotion_ (Princeton, NJ; Princeton University Press, 1984).
- See Chapter 6, Reflexes and Motor Control, subhead Coactivation
- of Alpha and Gamma Motor Neurons (p. 148). " ... so the
- experiments are in harmony with the idea that both alpha and
- gamma motor neurons are excited by higher motor centers at the
- same time."
-
- I think that gamma outputs are also involved in autonomic
- reflexes, but don't want to get into that kind of detail.
- -------------------------------------------------------------
- Best,
-
- Bill P.
-