Using ultrasound visual feedback to remediate velar fronting in preschool children: A pilot study

Abstract

Anecdotally, velar fronting can be difficult to remediate in some children. This pilot study examined the use of ultrasound visual feedback in remediating velar fronting in typically developing children. A single-case, multiple-baseline across-subjects experimental design was used to examine acquisition, retention and generalization of velar treatment targets. Two otherwise typically-developing children (P1, aged 4;0; P3, aged 4;11) completed the study. The productions of /k/ and /g/ at syllable-level were targeted during treatment. P1 improved her productions of /k/ and /g/ at syllable-level during the treatment period and achieved correct production at word-level during follow-up. P3 made no improvements in his productions of velar targets. This study suggests that ultrasound visual feedback may be an option for remediating velar fronting in some preschoolers. Further study is required.

Traditionally vs sonographically coached pushing in second stage of labor: a pilot randomized controlled trial

“…Secondary outcomes included the incidence of operative delivery and complications of labor.Results Forty women were recruited into the study. Those who received sonographic coaching had a shorter active phase of the second stage (30 min (interquartile range (IQR), 24-42 min) vs 45 min (IQR,(39)(40)(41)(42)(43)(44)(45)(46)(47)(48)(49)(50)(51)(52)(53)(54)(55); P = 0.01) and a greater increase in the angle of progression (13.5 • (IQR,(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) • ) vs 5 • (IQR, 3-9.5 • ); P = 0.01) in the first 20 min of the active second stage of labor than did those who had traditional coaching. No differences were found in the secondary outcomes between the two groups.…”

Systematic review of ultrasound visual biofeedback in intervention for speech sound disorders

“…Only one study (Heng et al . ) reported on the number of production trials provided in the pre‐practice phase of intervention; in this study, the two participants produced a mean of 65.8 and 52.8 pre‐practice trials in each session respectively. Regarding the total number of sessions provided, participants received between one (e.g., the children from the south‐central communities in Bernhardt et al .…”

“…Participants ranged in age from 4;0 years (Participant P1 from Heng et al . ) to 27 years (P3 from Fawcett et al . ), with a mean age of approximately 11 years (median = approximately 10 years).…”

“…In these 19 studies, U‐VBF was provided in a variety of schedules: in the pre‐practice phase of intervention only (e.g., Heng et al . ), in alternating periods within an intervention session (e.g., Preston et al . ), on a gradually decreasing basis determined by the participant's progress (e.g., Hitchcock and McAllister Byun ), or it may have been used in some but not all sessions (e.g., Foss et al .…”

“…() and Heng et al . () reported that some participants responded to the intervention whereas others demonstrated no effect of treatment to target sounds or words. Several studies reported low levels of generalisation to untreated words (e.g., Preston et al .…”