Table 6.

Correlations in linguistic scores from writing and speech samples versus Broca's area volume.

Measure	Estimated false discovery rate p value
	Writing		Speech
	All subjects	agPPA & DAOS	All subjects	agPPA & DAOS
Mean length of utterance	r = .17, p = .28	r = −.04, p = .85	r = .28, p = .08	r = .25, p = .22
Word count	r = −.1, p = .55	r = −.18, p = .35	r = .12, p = .48	r = .13, p = .52
Verb ratio	r = .01, p = .93	r = .04, p = .83	r = .02, p = .89	r = .02, p = .92
Noun ratio	r = −.34, p = .03*	r = −.29, p = .13	r = −.12, p = .46	r = .02, p = .93
Function word ratio	r = .3, p < .05*	r = .12, p = .54	r = −.02, p = .9	r = −.13, p = .54
Correct verb ratio	r = −.08, p = .61	r = −.37, p < .05*	r = .28, p = .09	r = −.07, p = .75
Grammatical utterance ratio	r = .35, p = .03*	r = .01, p = .94	r = .38, p = .02*	r = .07, p = .73
Ungrammatical utterance ratio	r = −.36, p = .02*	r = −.14, p = .47	r = −.45, p < .0001*	r = −.17, p = .39
Nonutterance ratio	r = −.18, p = .26	r = .09, p = .65	r = −.07, p = .67	r = .2, p = .32
Semantic error ratio	r = −.35, p = .02*	r = −.17, p = .38	r = −.39, p = .01*	r = −.25, p = .21
Syntactic error ratio	r = −.02, p = .88	r = .26, p = .18	r = −.27, p = .1	r = .1, p = .62
Complex utterance ratio	r = .24, p = .13	r = .19, p = .34	r = .21, p = .21	r = −.15, p = .47

Note. * indicates significance after false discovery rate correction. agPPA = agrammatic primary progressive aphasia; DAOS = dominant apraxia of speech.