Erratum

This article refers to:

A speech motor learning approach to treating apraxia of speech: Rationale and effects of intervention with an adult with acquired apraxia of speech

Van der Merwe, A. (2011). A speech motor learning approach to treating apraxia of speech: Rationale and effects of intervention with an adult with acquired apraxia of speech. Aphasiology, 25(10), 1174–1206. doi: 10.1080/02687038.2011.582246

It has been brought to the attention of Psychology Press that there was an error in Table 1 (p. 1185) of the above paper. In Stages 5 and 6, the syllable structure should have been reported as CVC (and not CVCV, as originally published).

A corrected version of Table 1 of this paper is shown below. Psychology Press would like to apologise for any inconvenience caused by this error.

TABLE 1 Stages in treatment

Stages across time	*Stage number	Speech sounds and syllable structures	Untreated probe stimuli (*four examples per stage)
Consecutively treated across treatment period	Stage 1	Consonants (C): p,m,s,x,	Nonwords:	Words:
		Vowels (V): a,i,u,ɔ,o,e,ə,	pama	mamma
		Syllable structure: CVCV	magee	poppie
	Stage 2	Consonants: l,t,k,p,m,s,x,	kiela	lappie
		Vowels: a,i,u,ɔ,o,e,ə,	tiekoo	tasse
		Syllable structure: CVCV
	Stage 3	Consonants: n,d,b,f,l,t,k,p,m,s,x,	natoo	nasie
		Vowels: a,i,u,ɔ,o,e,ə,	dôsoe	bokkie
		Syllable structure: CVCV
	Stage 4	Consonants: n,d,b,f,l,t,k,p,m,s,x	pouka	sousie
		Vowels: ϵ, əu, əi, a,i,u,ɔ,o,e,ə	mysô	boute
		Syllable structure: CVCV
	Stage 5	Stage 1 sounds	pam	mop
		Syllable structure: CVC	miep	gas
	Stage 6	Stages 2 to 4 sounds	noul	duif
		Syllable structure: CVC	dêt	net
Untreated (due to circumstantial reasons, not experimental reasons)	Stage 7	Stages 1 to 4 sounds	pienoul	belet
		Syllable structure: CVCVC	moedêt	mossies
	Stage 8	Stages 1 to 4 sounds	mipienoul	moedeloos
		Syllable structure: CVCVCVC	pimoedet	sakeman
	Stage 9	Stages 1 to 4 sounds and consonant clusters: sn,sp,sk,tw	snapiespôgee	spanneskoene
		Syllable structure: CCVCV
	Stage 10	Stages 1 to 4 sounds and consonant clusters: st,pl,sl,gl	stapô ploeni	stappieplasse
		Syllable structure: CCVCV
	Stage 11	Stage 1 to 4 sounds and h,v,j,r	hapô	here
		Syllable structure: CVCV	wamee	woede
		*In a treatment programme the number of stages for individual clients will vary depending on the severity of apraxia and the rate at which sounds can be added to the treatment stimuli.	*Probe stimuli are idiosyncratic to the participant and only four examples per stage are provided N = 10 nonwords and 10 words
Stages in treatment as determined by the ease of production of consonants and vowels and the hierarchy of syllable structures determined by the SML approach. New sounds that are introduced at each stage are underlined. Examples of probe stimuli per stage are also provided.