Prevalence of stuttering and cluttering in adults with mental handicaps

Abstract

ABSTRACT. A survey (involving questionnaire, screening and assessment procedures) of 793 adults with mental handicaps revealed that 6.3% of the population had ideopathic dysfluencies. Issues in the differential diagnosis between stuttering, cluttering and other dysfluency are considered, and the contaminating factors involved in this diagnosis discussed.

Fluency disorders in genetic syndromes

“…Other investigators, however, did observe secondary characteristics in individuals with Down syndrome. These secondary behaviors included avoidance and postponement behavior, and synkinesias (for instance, facial grimaces or blinking the eyes) (Devenny & Silverman, 1990;Preus, 1973;Stansfield, 1990). The presence or absence of secondary behaviors does not seem to differentially diagnose differences between stuttering associated with Down syndrome and developmental stuttering.…”

Adults with intellectual impairment who stammer: a clinical case study

“…Bray et al 1995;Ferrier et al 1991;Lebrun & Van Borsel 1990;Stansfield, 1995;Van Borsel & Tetnowski 2007;Van Borsel et al 2008) report that stammered speech and associated behaviours of individuals with intellectual impairments are different in quality and more variable between individuals than those of the typical population. As reported by Stansfield (1990) and by Bray et al (1995), speech in adults can be severely dysfluent, with no apparent emotional overlay, or may be apparently mildly impaired with significant levels of distress. In addition, it can be difficult for adults with intellectual impairments to discuss their feelings about the effects of their stammer if they have limited expressive language skills.…”

“…The complexity of dysfluency in the intellectually impaired population has attracted comment by several authors over the years (e.g. Stansfield 1990; Van Borsel et al. 2008).…”

“…2008) report that stammered speech and associated behaviours of individuals with intellectual impairments are different in quality and more variable between individuals than those of the typical population. As reported by Stansfield (1990) and by Bray et al. (1995), speech in adults can be severely dysfluent, with no apparent emotional overlay, or may be apparently mildly impaired with significant levels of distress.…”

Stuttering: incidence and causes

“…These included examples of stuttering, cluttering, and atypical dysfluencies -the first group being the largest. 16 Another study involved 9930 pupils from 150 schools for children with hearing impairments. Only 12 of these children were said to stutter: three in the oral mode only, six in manual communication only with effortless repetition using sign language, and three in both modes.…”