Table 2 Head-fixed task training stages

From: Perirhinal cortex learns a predictive map of the task environment

 

Performance criteria

NM/M

PA

Fast/slow

Delay (ms)

Withdraw (cm)

T1

d’ > 0.45, 2 sessions

0.9/0.1 to 0.5/0.5

over 5 sessions

No

0.95/0.05

100

0

T2

d’ > 1.68, 2 sessions

0.5/0.5

No

0.95/0.05

100

0

T3

d’ > 1.68, 2 sessions

0.5/0.5

Yes

0.95/0.05

100

0

T4

d’ > 1.68

0.5/0.5

Yes

0.95/0.05

100–2000 (100 inc.)

0

d’ > 1.68

0.5/0.5

Yes

0.95/0.05

200–2000 (200 inc.)

0

d’ > 1.68

0.5/0.5

Yes

0.95/0.05

300–2000 (300 inc.)

0

d’ > 1.68

0.5/0.5

Yes

0.95/0.05

400–2000 (400 inc.)

0

d’ > 1.68

0.5/0.5

Yes

0.95/0.05

500–2000 (500 inc.)

0

d’ > 1.68

0.5/0.5

Yes

0.95/0.05

1000–2000 (500 inc.)

0

d’ > 1.68

0.5/0.5

Yes

0.95/0.05

1500–2000 (500 inc.)

0

d’ > 1.68

0.5/0.5

Yes

0.95/0.05

2000

1.5

T5

 

0.5/0.5

Yes

0.75/0.25

2000/3000/4000 (0.5/0.25/0.25) prob.

1.5

  1. Summary of task settings utilized at each training stage. Performance criteria indicate the behavioral performance necessary to graduate to the next training stages. NM/M indicates the proportion of stimulus conditions belonging to each category. PA indicates whether that stimulus condition was included in the stimulus set. Fast/Slow indicates the proportion of speed stimulus conditions. Delay indicates the starting and ending delay period length along with the interval in which the delay was increased. Withdraw indicates the distance in which the rotor was withdrawn during the delay period.
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