Table 1.

Summary of significant experimental effects and post hoc analyses by ERP component.

Nc Component Analysis
Significant Effects	Post Hoc Analyses
Attention × Stimulus Repetition × Electrode Location interaction	Greater amplitude Nc during attention on early repetition trials
Age × Stimulus Repetition interaction	Greater amplitude Nc on late repetition trials for 6-month-olds
Age × Stimulus Type × Stimulus Repetition interaction	Reduced amplitude Nc to repeated stimuli from early to late trials for 7.5-month-olds at central electrodes
LSW Component Analysis
Significant Effects	Post Hoc Analyses
Attention × Stimulus Type interaction	Differences in LSW amplitude based on stimulus type only found on attentive trials