Table 5.

Letter targets and nontargets for each of the OVST conditions. Trained, untrained and illegal letter bigram search targets

Array condition	Trained		Untrained		Illegal
	Target bigrams	Nontarget letters	Target bigrams	Nontarget letters	Target bigrams	Nontarget letters
Visually confusable	sh	b k a e n	gn	o m h q a	cb	p e d h s
	ck	o h e f x
	br	q p i n d
Nonconfusable	sh	U m f j p	gn	t i k z y	cb	Y m z j w

Targets were presented within arrays of the nontarget letters that were either visually confusable with one of the target letters (confusable array condition), or within arrays of letters that were not visually confusable with the target letters (nonconfusable array condition)