Table IV
EXTINCTION
means and standard deviations (+/-)

The left natural eye was removed from animals in Normal-B prior to extinction. Normal-A animals were left intact. Both natural eyes were removed from Triclops-B subjects prior to extinction trials. Animals in Triclops-A group were intact during extinction.
Avoidance* Decrement
(Rate)
IIIIII
Minus13.1 +/- 2.27.1 +/- 3.13.0 +/- 2.70.210
Normal-A15.5 +/- 2.98.0 +/- 2.83.2 +/- 2.10.246
Normal-B15.5 +/- 2.99.4 +/- 2.85.4 +/- 2.30.210
Triclops-A17.6 +/- 2.012.0 +/- 3.46.0 +/- 4.60.232
Triclops-B17.6 +/- 2.09.0 +/- 3.04.8 +/- 5.30.256
Cyclops21.0 +/- 3.214.7 +/- 3.69.0 +/- 2.90.240
*I is aquisition in the last block of 25 trials; II and III refer to blocks of 25 extinction trials each.