Heart Rate: Changes during Conditioned Suppression in Rats
Leyla De Toledo 1 and
A. H. Black 1
1 Department of Psychology, McMaster University, Hamilton, Ontario
In the report "Heart rate: changes during conditioned suppression in rats" by L. de Toledo and A. H. Black (3 June, p. 1404), a line of type was dropped. On page 1404, column 3, the third full paragraph should have begun "Heart rate was recorded from permanently implanted Grass disc electrodes (5)."