Table 1.

Psycholinguistic and semantic properties of the critical word stimuli

Psycholinguistic and semantic properties of word stimuli	Mean (Naming)	SE (Naming)	Mean (Request)	SE (Request)	t test (2-tailed)
Number of letters	4.33	0.11	4.09	0.08	ns
Word form frequency	22.15	2.89	20.03	2.56	ns
Logarithmic to base 10 of word frequency	1.14	0.05	1.11	0.05	ns
Lemma frequency	54.53	8.02	46.84	6.55	ns
Logarithm to base 10 of lemma frequency	1.50	0.06	1.46	0.05	ns
Orthographic bigram frequency	38,500.02	2,035.61	33,852.68	2,005.34	ns
Orthographic trigram frequency	3,673.40	276.73	3,371.39	249.51	ns
Orthographic neighbourhood size	7.76	0.73	9.08	0.61	ns
Number of meanings	1.27	0.06	1.36	0.07	ns
Word from frequency when used as a noun	20.92	2.81	18.81	2.58	ns
Word from frequency when used as a verb	1.41	0.49	0.42	0.24	ns
Lemma frequency when used as a noun	44.31	6.63	38.58	7.81	ns
Lemma frequency when used as a verb	35.89	13.50	14.42	6.77	ns
Action-relatedness	3.93	0.14	3.87	0.13	ns
Hand-relatedness	3.75	0.17	3.64	0.18	ns
Face-relatedness	1.79	0.15	1.90	0.14	ns
Visual movement-relatedness	4.20	0.12	3.93	0.14	ns
Familiarity	4.73	0.14	4.67	0.14	ns
Imageability	6.46	0.06	6.45	0.06	ns
Concreteness	6.68	0.05	6.65	0.05	ns
Arousal	2.88	0.12	2.61	0.11	ns
Valency	4.40	0.08	4.18	0.08	ns
Potency	3.98	0.10	3.85	0.10	ns

Mean values and standard error (SE) for the critical words used to perform the speech acts of Naming and Requesting, and results of the t test comparing the two conditions