Neural mechanisms underlying the facilitation of naming in aphasia using a semantic task: an fMRI study

BMC Neuroscience

Table 2 Behavioral results for participants with aphasia

	Max	P02	P03	P05	P06	P07	P08
Pre-tests:
- total accuracy		74.8%	49.5%	81.2%	81.4%	88.8%	53.0%
- phonological errors		1.6%	13.1%	11.9%	9.0%	3.9%	25.9%
- semantic errors		25.8%	15.4%	47.1%	42.3%	41.4%	9.6%
WAB:
- spontaneous speech	20	18	14	17.5	18	18	17
- comprehension	200	200	111	181	199	198	166
- repetition	100	86	68	70	97	98	46
- naming/word finding	100	91	71	87	92	96	85
- aphasia quotient	100	91.4*	66.8*	84.5*	93.7*	94.6	76.8*
- classification		Anomic	Wernicke’s	Anomic	Anomic	Anomic	Conduction
BNT:	60	42*	24*	55	41*	55	33*
P&PT:
- three pictures	52	50	45*	52	50	50	51
- spoken word, two pictures	52	52	45*	50	52	50	48*
CAT:
- spoken comprehension	66	62	48*	56*	60	61	48*
- repetition (5 subtests)	74	60*	43*	48*	70	60*	26*
- real words	32	30	22	26	32	29	17
- complex words	6	4	3	4	6	6	1
- non-words	10	6	6	6	8	5	0
- naming	58	47*		52*	53*	54*	46*
- fluency	un	15		24	15	18	20
- reading	70	64		64	68	58*	57*
- spoken picture description	un	13*		36	35	43	40
Possible Levels of Impairment		▪ semantics to phonology and/or phonological form	▪ semantics▪ semantics to phonology and/or phonological form	▪ semantics to phonology and/or phonological form	▪ semantics to phonology and/or phonological form	▪ semantics to phonology and/or phonological form	▪ semantics to phonology and/or phonological form
							▪ post-phonology
Facilitation Task Accuracy:
- total accuracy to targets		90.6%	50.6%	88.8%	96.0%	95.9%	79.9%
- to long-term targets		94%	45.9%	95.3%	100%	97.9%	81.9%
- to short-term targets		84%	60%	76%	88%	92%	76%
- to ‘no’ response fillers		100%	66.6%	66.6%	79.1%	100%	91.6%

Max = maximum raw score possible on each subtest; un = unlimited possible maximum score. * indicates score falls below normal range with reference to available normative data for the Western Aphasia Battery (“WAB”) [45], the Pyramids and Palm Trees Test (“P&PT”) [84], the Comprehensive Aphasia Test (“CAT”) [44], and in the case of the Boston Naming Test (“BNT”) with reference to Australian normative data [85].

ISSN: 1471-2202