Is that a belt or a snake? object attentional selection affects the early stages of visual sensory processing

Table 2 Attentional effects of shape and location relevance (in the occipital-temporal cortex) for the later-latency time windows investigated.

Time Window	N1 (140-160 ms)	P300/N400 (380-450 ms)	Late positivity (450-520 ms)
Significant Factors
Location Relevance	p < 0.030	p < 0.001	p < 0.0000
Shape Relevance	n.s.	p < 0.001	p < 0.001
Shape Relevance × Electrode	n.s.	p < 0.001	n.s.
Location × Shape Relevance	n.s.	p < 0.002	p < 0.0004
Shape Relevance × Hemisphere × Electrode	p < 0.048	n.s.	n.s.

ISSN: 1744-9081