Appendix.

Orientation memory in Experiments 2–5.

Experiment 2. Auditory targets
Position	T−3	T−2	T−1	Target	T+1	T+2	T+3
Accuracy	.50	.57	.47	.45	.59	.53	.40
S.E.	.07	.07	.03	.07	.06	.05	.08

Experiment 3. Single-task
Position	T−6	T−5	T−4	T−3	T−2	T−1	Target	T+1	T+2	T+3	T+4	T+5	T+6
Accuracy	.44	.52	.48	.49	.42	.55	.54	.47	.41	.48	.59	.46	.49
S.E.	.04	.04	.04	.04	.04	.04	.05	.04	.04	.06	.04	.05	.05

Experiment 4. Feature-conjunction detection
Position	T−3	T−2	T−1	Target	T+1	T+2	T+3	T+4	T+5
Accuracy	.52	.62	.58	.66	.52	.56	.59	.56	.58
S.E.	.05	.05	.04	.04	.07	.06	.06	.06	.04

Experiment 5a. Red & green simple-detection
Position	T−3	T−2	T−1	Target	T+1	T+2	T+3
Accuracy	.47	.50	.49	.51	.51	.54	.52
S.E.	.03	.03	.03	.04	.03	.03	.03

Experiment 5a. Red & green arbitrary stimulus-response mapping
Position	T−3	T−2	T−1	Target	T+1	T+2	T+3
Accuracy	.55	.53	.46	.54	.47	.52	.53
S.E.	.04	.04	.04	.04	.03	.02	.04