Is the dolphin a fish? ERP evidence for the impact of typicality during early visual processing in ultra-rapid semantic categorization in autism spectrum disorder

Table 4 Summary of statistically significant (p < .05) ERP results

	Theoretical meaning of the component	NT adults		Autistic adults
		Mean amplitude in μV	Peak latency in ms	Mean amplitude in μV	Peak latency in ms
N1 (120–170 ms)	Differences between subordinate and basic level categorization [63]				Presentation time
P2 (180–240 ms)	Inversely correlation with task difficulty [8] Target discrimination based on simple features [35]	Category Typicality		Category Category × Typicality
N2 (240–300 ms)	N2 is enhanced by those difficult to classify [71]	Category Presentation Time		Category
P3 (300–500 ms)	Categorization based on arbitrary features [52]			Typicality

Analyses were done separately for each group (cognitively able autistic and NT adults), including the factors category (animal vs. food), typicality (typical vs. atypical), and presentation time (23.5 vs 82.3 ms)

ISSN: 1866-1955