|
| |
|
|
|
|
||||
| Home Help Feedback Subscriptions Archive Search Table of Contents | ||||
|
Fig. 6. Preventing RPeD1 impulse activity in operantly conditioned preparations
augmented the formation of long-term memory. (A) Upon completion of session 1
in conditioned, yoked, and naïve control preparations, RPeD1 was
penetrated with a microelectrode followed by the immediate injection of
hyperpolarizing current to prevent impulse activity for up to 20 min. (B)
Sample recordings in which RPeD1 impulse activity was prevented after the
completion of training session 1 (arrowheads denote the time of
hyperpolarizing current injection in B and C). (C) Conditioned preparations
significantly reduced their number of attempted pneumostome openings between
sessions 1 and 2 (learning; t=4.014, P<0.001) and session
1 and the memory test 18 h later (LTM; t=4.176, P<0.001).
Naïve preparations also significantly reduced their pneumostome openings
in session 2 (t=3.733, P<0.01), but not in the memory
test (t=0.6616, P>0.05) and thus did not show LTM.
**P<0.01; ***P<0.001.
|
