Table 1.

Summary statistics [mean and (standard deviation)] for each of the (single-word) semantic categories presented in both the SD and LD task and for pseudowords presented only in the LD task

	Number of letters	Frequency	Orthographic neighborhood size	Bigram frequency	Trigram frequency
Action	5.02 (1.20)	19.67 (30.86)	5.44 (5.25)	17,368.95 (9,580.53)	1,690.77 (2,505.16)
Auditory	5.16 (1.22)	11.03 (17.25)	5.28 (5.24)	17,599.13 (9,181.36)	1,825.17 (2,426.59)
Visual	5.18 (1.48)	13.32 (17.58)	4.50 (5.44)	20,089.52 (11,698.66)	1,867.21 (3,314.68)
Abstract	5.28 (0.93)	23.64 (23.76)	3.26 (3.84)	19,495.50 (9,564.39)	1,597.65 (955.62)
Pseudowords	5.00 (1.00)	N/A	4.70 (4.50)	19,465.83 (10,435.78)	1,670.66 (2,029.80)