Table 3.

Summary of electrophysiological ANCOVA findings.

Component Amplitude	Differences in Stimulus Type or Order Condition	Group × Stimulus Condition interaction effect	Time window × Stimulus Condition interaction effect
Encoding: Stimulus type and order of stimulus
P1	Distractor > Target	n.s.
N1	Third, Second > First	n.s.
LPP	Distractor > Target	n.s.	Significant: - Distractors > Targets for 200–250 ms, 300-600 ms - Targets > Distractors for 800–850 ms
LPP	n.s. (First, Second, Third)	n.s.a	Significant: - Second and Third stimuli > First for 200–450 ms - Third stimulus < First and Second after 700 ms
Retrieval: Probe location based on encoded stimulus type and encoded stimulus order
N1	Target, Distractor > Elsewhere	Significant: - CTRL: Target, Distractor > Elsewhere - PSZ: No differences across locations - REL: Distractor > Target > Elsewhere
N1	Third > Second, First	Significant: - CTRL: Third > First - PSZ: No difference across order - REL: Third > First
LPP	Target, Distractor > Elsewhere	n.s.b	Significant: - Distractors > Targets for 250–350 ms - Distractors > Elsewhere for 300-650 ms, 700–850 ms - Targets > Elsewhere for 350–600 ms - Elsewhere > Targets for 250–300 ms

Indicated effects are significant at α = .05. All main effects of group were non-significant. Superscripts indicate analyses where within-group ANCOVAs were performed on the basis of observable differences between group waveforms despite a lack of a significant group by manipulation interaction. For retrieval results, “Target” refers to probes in the position of an encoding target stimulus, “First” to probes in the position of the first encoding stimulus, “Elsewhere” to probes that did not appear in the position of an encoding stimulus, etc.

^aThe stimulus order × time window interaction was significant for CTRL, REL.

^bThe encoded stimulus order × time window interaction was significant for CTRL alone.