Kimberley Docking

Why Word Learning is not Fast.

Upon fast mapping, children rarely retain new words even over intervals as short as 5 min. In this study, we asked whether the memory process of encoding or consolidation is the bottleneck to retention. Forty-nine children, mean age 33 months, were exposed to eight 2- or-3-syllable nonce neighbors of words in their existing lexicons. Didactic training consisted of six exposures to each word in the context of its referent, an unfamiliar toy. Productions were elicited four times: immediately following the examiner’s model, and at 1-min-, 5-min-, and multiday retention intervals. At the final two intervals, the examiner said the first syllable and provided a beat gesture highlighting target word length in syllables as a cue following any erred production. The children were highly accurate at immediate posttest. Accuracy fell sharply over the 1-min retention interval and again after an additional 5 min. Performance then stabilized such that the 5-min and multiday posttests yielded comparable performance. Given this time course, we conclude that it was not the post-encoding process of consolidation but the process of encoding itself that presented the primary bottleneck to retention. Patterns of errors and responses to cueing upon error suggested that word forms were particularly vulnerable to partial decay during the time course of encoding.

A play-based intervention for children with ADHD : A pilot study

INTRODUCTION Many children with attention deficit hyperactivity disorder (ADHD) have serious social and peer difficulties that can lead to adverse outcomes in adolescence and adulthood. To date, psychosocial treatments have produced poor outcomes in reducing social impairments commonly associated with ADHD. This study aimed to examine the efficacy of a new intervention designed to improve the play and social skills of children with ADHD and their playmates within the natural context of play. METHODS Participants included children (aged 5-11 years) diagnosed with ADHD, age-matched typically developing playmates (n=14/group) and parents of children with ADHD. The intervention involved seven weekly video-recorded free-play sessions; video feed-forward/feedback and therapist- and peer-modelling were used to promote social play. The Test of Playfulness was used as a pre-/post-test measure. Data were subjected to Rasch analysis to calculate measure scores on interval level; dependant sample t-test and Cohen-d calculations were used to measure effect. RESULTS A dependant samples t-test revealed that both children with ADHD (t=8.1; d.f.=13; P<0.01) and their playmates (t=6.9; d.f.=13; P<0.01) improved in their social play. Results demonstrated a large effect in improving the social play of children with ADHD (d=1.5) and their playmates (d=1.3). DISCUSSION Results support the use of play, video feed-forward/feedback techniques, therapist- and peer-modelling and parent involvement as an effective means to develop the social play skills of children with ADHD. Further larger-scale research is required.

Interpretation and comprehension of linguistic humour by adolescents with head injury: a group analysis

The aim of the present study was to determine the ability of adolescents with a head injury to interpret and comprehend linguistic humour. Nine adolescents with head injury aged between 12 years 1 month and 15 years 4 months, and nine individually matched adolescents aged between 12 years 1 month and 16 years 1 month were administered a humour test, a standard language battery, the CELF-3, and the Self-Esteem Index. The test of humour abilities required each subject to recognize and select an explanation from a group of three, as to what made each item funny. Items were based on morphological, semantic and syntactic humour elements. Comparison at a group level demonstrated that adolescents with head injury performed significantly poorer in the interpretation and comprehension of linguistic humour than a group of individually matched peers. Contrary to expectations, a relationship between the level of self-esteem and humour comprehension did not exist. The findings of the present study suggest that further research into the effects of head injury on linguistic humour in adolescents is warranted, particularly from a case-by-case perspective.The aim of the present study was to determine the ability of adolescents with a head injury to interpret and comprehend linguistic humour. Nine adolescents with head injury aged between 12 years 1 month and 15 years 4 months, and nine individually matched adolescents aged between 12 years 1 month and 16 years 1 month were administered ahumour test, astandard language battery, the CELF-3, and the Self-Esteem Index. The test of humour abilities required each subject to recognize and select an explanation from a group of three, as to what made each item funny. Items were based on morphological, semantic and syntactic humour elements. Comparison at a group level demonstrated that adolescents with head injury performed significantly poorer in the interpretation and comprehension of linguistic humour than a group of individually matched peers. Contrary to expectations, a relationship between the level of self-esteem and humour comprehension did not exist. The findings of the present study suggest that further research into the effects of head injury on linguistic humour in adolescents is warranted, particularly from a case-by-case perspective.

Casual conversations between individuals with traumatic brain injury and their friends.

Primary objective: To investigate casual conversations with friends following severe traumatic brain injury (TBI). Methods: Nine participants with severe TBI were matched by age, gender and education to nine control participants. Each participant also invited a friend to partake in the study. Participants were recorded engaging in a brief casual conversation with a friend. The resulting discourse was analysed using Exchange Structure Analysis (ESA). Rates of information giving, information requesting and communication repair and negotiation were collated. Non‐parametric statistical analyses were performed. Results: Participants with and without TBI obtained similar rates of information giving and information requesting. The friends of the participants with TBI produced significantly lower rates of information giving measures when compared to the controls, but achieved comparable rates of information requesting and communication repair and negotiation measures. Participants with TBI were observed to produce tangential language and to have difficulties identifying communication breakdown, asking questions and engaging in conversational joking. Conclusions: People with TBI are able to engage in casual conversations with friends in a similar way to matched controls. Friends of people with TBI are often restricted in contributing information in conversations. Further research is needed to specify the facilitative and restrictive communication behaviours so that they may be translated to clinical practise.

Assessment practices of speech-language pathologists for cognitive communication disorders following traumatic brain injury in adults: an international survey.

Abstract Primary objective: This study’s objective was to examine the current assessment practices of SLPs working with adults with acquired cognitive communication impairments following a TBI. Methods and procedures: Two hundred and sixty-five SLPs from the UK, the US, Canada, Australia and New Zealand responded to the online survey stating the areas of communication frequently assessed and the assessment tools they use. Main outcomes and results: SLPs reported that they routinely assessed functional communication (78.8%), whereas domains such as discourse were routinely assessed by less than half of the group (44.3%). Clinicians used aphasia and cognitive communication/high level language tools and tools assessing functional performance, discourse, pragmatic skills or informal assessments were used by less than 10% of the group. The country and setting of service delivery influenced choice of assessment tools used in clinical practice. Conclusions: These findings have implications for training of SLPs in a more diverse range of assessment tools for this clinical group. The findings raise questions regarding the statistical validity and reliability of assessments currently used in clinical practice. It highlights the need for further research into how SLPs can be supported in translating current evidence about the use of assessment tools into clinical practice.

The impact of a cerebellar tumour on language function in childhood

Background/Aims:Childhood-acquired cerebellar studies to date have appeared to present a concordant pattern of specific neuropsychological profiles depending on lesion site. The aim was to determine the impact of a cerebellar tumour specifically on language function in children by reporting both the general and high-level language abilities of 4 cases with differing sites of hemispheric and vermal involvement. Methods: The language abilities of 4 children (aged from 7 years 9 months to 13 years), treated with surgery and/or radiotherapy for cerebellar tumour 6 months to 3 years previously, were examined. A standardized battery of general and high-level language assessments was administered. Results: Analysis revealed intact abilities across all 4 cases on measures of general language, including receptive language, expressive language, receptive vocabulary and naming. While 2 of the 4 cases also demonstrated intact high-level language skills across all measures, the remaining 2 demonstrated specific deficits in linguistic problem solving at 6 months after treatment. Follow-up assessment of 1 case also demonstrated further decline in this area 12 months later. Conclusion: Findings of high-level language deficits in problem solving in 2 of the 4 cases examined supported previous reports of specific impairments in high-level language and in thinking flexibility and problem solving following cerebellar hemispheric damage in childhood.

Interpretation and comprehension of linguistic humour by adolescents with head injury: a case-by-case analysis

The aim of the present study was to examine the linguistic humour abilities of a group of adolescents with head injury on a case-by-case basis. Nine adolescents with head injury aged between 12 years 1 month and 15 years 4 months, and nine individually matched adolescents aged between 12 years 1 month and 16 years 1 month were administered a humour test, a standard language battery, the CELF-3, and the Self-Esteem Index. The test of humour abilities required each subject to recognize and select an explanation from a group of three, as to what made each item funny. Items were based on morphological, semantic and syntactic humour elements. Examination of the individual profiles of each subject with head injury illustrated the existence of variability between subjects representing three language abilities in the presence of mild head injury; and impaired humour ability with concurrent language skills that are within normal limits. This third pattern supports previous studies, which have documented the occurrence of high-level language impairment while language abilities are intact. The present study emphasized the importance of investigating the abilities of individuals who have had a head injury in childhood, within a developmental framework. This perspective serves to highlight the context of contributing aspects that impact on future language development and recovery of injury, such as the time that the injury occurred in a childs development, in addition to injury severity and main trends: reduced humour abilities together with below average language skills; intact humour and the time that has elapsed post-injury.

The pragmatic language abilities of children with ADHD following a play-based intervention involving peer-to-peer interactions.

Abstract Children with Attention Deficit Hyperactivity Disorder (ADHD) commonly experience significant pragmatic language deficits which put them at risk of developing emotional and social difficulties. This study aimed to examine the pragmatic language exhibited in a peer-to-peer interaction between the children with ADHD and their playmates following a pilot play-based intervention. Participants were children (aged 5–11 years) diagnosed as having ADHD (n = 14) and their self-selected typically-developing playmate. Pragmatic language was measured using the Pragmatic Protocol (PP) and the Structured Multidimensional Assessment Profiles (S-MAPs). Childrens structural language was also screened and compared against their pragmatic language skills pre–post play-based intervention. The pragmatic language of children with ADHD improved significantly from pre–post intervention as measured by both the PP and S-MAPs. Both children with and without structural language difficulties improved significantly from pre- to post-intervention using S-MAPs; only children with structural language difficulties improved significantly using PP. The findings support the notion that pragmatic skills may improve following a play-based intervention that is characterized by didactic social interaction. As pragmatic language is a complex construct, it is proposed that clinicians and researchers reconsider the working definition of pragmatic language and the operationalization thereof in assessments.

Examining the language skills of children with ADHD following a play-based intervention

Communication and play skills are important aspects of development yet are largely uncharted in children with attention deficit hyperactivity disorder (ADHD). This exploratory study examined whether changes in pragmatic skills and problem-solving skills were observed in children with ADHD pre- and post-participation in a play-based intervention conducted by occupational therapists and speech-language pathologists. The study also investigated whether the presence of language difficulties affected the children’s play outcomes. Fourteen children with ADHD (5;0–10;7 years) participated in a 7-week, pilot intervention to address play and social skill deficits. Pre- and post-intervention testing included: (a) the assessment of play and problem-solving skills via standardized testing, and (b) pragmatic skills via parent report. The children’s language skills were also screened and compared with their play scores. Play skills significantly improved post-intervention. No significant differences were observed for pragmatic skills while prediction skills, an aspect of problem-solving, significantly improved pre- and post-play-based intervention. Fifty percent of children failed the language screener, yet separate paired t-tests identified significant play improvements irrespective of the presence or absence of language difficulty. Two independent t-tests revealed significant differences in play scores between these groups at pre- but not post-intervention. While play and predicting skills significantly improved post-play-based intervention, other aspects of problem-solving and pragmatics did not. Reasons for the lack of change in these areas are discussed. The presence of language difficulties did not appear to affect the play outcomes of children with ADHD following a play-based intervention. A larger scale experimental trial investigating the play and language skills of children with ADHD is warranted, as is future collaborative research between occupational therapists and speech-language pathologists in the assessment and management of children with ADHD.

Cerebellar language and cognitive functions in childhood: A comparative review of the clinical research

Background: Recent research addressing evidence from functional neuroimaging studies, neurophysiological research, and new advances in neuropsychology together with traditional cerebellar lesion studies have recently implicated the cerebellum in adult language and cognitive functions. However, more limited information is currently available in describing the functional connectivity present in the paediatric population. Aims: It is the purpose of this paper to review recent clinical research pertaining to paediatric populations, outlining the impact of site of lesion and specific associated clinical changes in children with cerebellar disturbances. Main contribution: The specific contribution of the right cerebellar hemisphere to language function is identified to also exist in the paediatric population, highlighting the existence of functional connections between this region of the brain and left frontal cortical areas early in development. Conclusions: Implications for future research in paediatric populations are extensive, as a greater awareness and an understanding of the recently acknowledged involvement of the cerebellum in cognition and nonmotor linguistic function is anticipated to also add new dimension and direction to the analysis of childhood language outcomes associated with the cerebellum.