Table 3:

Individual linguistic results for the six Aβ-negative lvPPA subjects

Grammatical/language measures	Subject 1	Subject 2	Subject 3	Subject 4	Subject 5	Subject 6
Utterances	13	8	13	13	5	8
Mean length of utterance (MLU)	11.39	15.63	18.54	6.31	5.2	13.13
Word count	123	106	213	63	24	83
Ratio of Verbs: total words	0.15	0.14	0.13	0.16	0.08	0.22
Ratio of Nouns: total words	0.2	0.23	0.23	0.25	0.17	0.19
Ratio Function words: total words	0.38	0.37	0.38	0.44	0.33	0.33
Ratio of Correct verbs: total verbs	0.85	0.87	0.88	0.87	0.96	0.83
Ratio of Grammatical utterances: total utterances	0.31	0.5	0.54	0.77	0.2	0.38
Ratio of Ungrammatical utterances: total utterances	0.38	0.5	0.46	0.15	0	0.8
Ratio of Non-utterances: total utterances	0.31	0	0	0.08	0.8	0.13
Ratio of Complex utterances: total utterances	0.15	0.13	0.69	0	0	0.75
Ratio of Semantic errors: total words	0.06	0.01	0.03	0.02	0.08	0.05
Ratio of Syntactic errors: total words	0	0.01	0.01	0.03	0.04	0.05