TY  - GEN
AU  - Roberts,S
AU  - Holder,M D
TI  - What starts an internal clock?
SN  - 0097-7403
PY  - 1984///0906
KW  - Animals
KW  - Association Learning
KW  - Discrimination Learning
KW  - Extinction, Psychological
KW  - Male
KW  - Psychophysics
KW  - Rats
KW  - Time Perception
KW  - Transfer, Psychology
N1  - Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S
ER  -