Autism spectrum disorder (ASD) is a complex neurodevelopmental disorder characterised by abnormalities in social behaviour, language, communication and behaviour (Mash & Wolfe, 2013; Cohen & Walkmar, 1997)) and unusual or stereotypical behaviours and interests (Johnson, Myers, & the Council on Children with Disabilities, 2007). Autism is defined as spectrum disorders because its symptoms are observed with many different clusters and degree of severity (Lord, Cook, Leventhl, & Amaral, 2000). Majority of ASD cases even being different on IQ, gender, and socio-economic status show common essential symptoms (Mayes & Calhoun, 2011) that widely vary in the intensity (Jones & Klin, 2009).
Such cases are characteristically engaged in unusual patterns of behaviour having confined range of restricted interests that are very common to such patients. These cases experience a strong desire to maintain routines and have a strong resistance to change (Carr, 1999). They often repeatedly perform stereotyped motor acts such as hand clapping or flapping or peculiar finger movements. Some of them present with self-injurious behaviours such as biting or striking themselves or banging their heads, but this is more likely to be presented with severe or profound mental retardation (MR) but is also observed in children with autism without MR (Kay & Tasman, 2006). There are many cases in which children with autism mild levels of MR (Hoeksema, 2004). They often have poor performance in measures of intellectual ability with 29% of mild to moderate intellectual impairments (Fombonne, 1999).
Neuropsychological explanations of these unusual and stereotypical behaviours pose towards the dysfunction of medial frontal lobe regions and related limbic structures. These motor disturbances resemble neurological symptoms of adult patients with dysfunction of the basal ganglia and associate regions of temporal lobe (Damasio & Maurer, 1978), which is proved by the further studies demonstrating increased frontal lobe functions in children with autism (Ozonoff, 1995; Ozzonoff et al, 1994; Prior & Hoffman, 1990). Some researchers argued that autism is a disorder of prefrontal cortex (Minshew & Godlstein, 1993; Rogers & Pennington, 1991). But others explained these behaviours in terms of combination of social cognitive and executive functions that may be linked to frontal brain areas. However, autopsy studies have revealed reduced neuronal size and increased cell packing destiny in the hippocampus, amygdala and adjacent limbic regions (Bauman & Kemper, 1994). These structures, especially the amygdala, mediate basic brain functions that may be required for skills in which persons with autism are typically impaired, such as motor imitation (Dawson, Meltzoff, Osterling & Rinaldi, 1998; Osterling & Dawson, 1994; Smith & Bryson, 1994). In other studies, motor functions amongst patients with autism are attributed to granule cell loss (Courchesne, 1989).
Behaviour-based non-pharmacological treatments have demonstrated a significant reduction in these challenging behaviours in controlled studies (Smith, 1993; Koegel & Kegel, 1996; Bregman & Gerdtz, 1997) but majority of studies have been performed on the co-morbid conditions, presenting with intellectual disabilities (Oliver, 1995).
As most of the treatments of ASD are symptom directed, they require diverse treatments simultaneously. Common behavioural problems of such cases are aggression, self-injurious behaviours and interfering repetitive behaviours (Kay & Tasman, 1996) and also developing therapeutic relationship (Porter, 2012). Physical exercise has been shown to decrease the repetitive behaviour in children diagnosed with ASD and for improving the cognitive functioning across the whole life time (Hanley et al., 2011). Mirroring approach is said to be effective in such cases where the movements are reflected on either side, therapist or the case. This is tested by the quality of the reflexion (Eberhard-Kaechele, 2012; McGarry & Russo, 2011). The positive results are due to fact that movement and exercise can spark the growth of new brain cells and facilitate learning (Ratey, 2008).
Majority of researchers focused on the development of interaction skills (Kestenberg, 1995; Keysers, 2011) and social skills (Oberman & Ramchandran, 2017; Koehne et al., 2015) as an early intervention with children (Martin, 2014). However, focused studies pertaining to improvements in the repetitive and stereotypical behaviour are less evident. Dance movement intervention in cases of ASD is a well-researched phenomenon in psychiatry or psychology, but its impact on stereotypical and repetitive behaviours is hardly explored. Furthermore, the studies are either on adolescents (Teixeira-machado, 2015) or on other aspects of autism (Inlayson, Fitzgerald, Murphey, & Brown, 2015). For this reason, focused studies are required to draw attention of researchers and practitioners to improve these symptoms. Hence, the current study was planned with an aim of assessing the effectiveness of dance movements on stereotypical and repetitive behaviours of children with ASD. Keeping in view these concerns, the current study aims to evaluate the effectiveness of dance movement on stereotypical and repetitive behaviour of children diagnosed with moderate ASD. It was hypothesised that dance movement will bring positive change in stereotypical and repetitive behaviour of children diagnosed with ASD.
The sample consists of five patients (three male patients and two female patients) with autism aged between 9 and 16 years from a special education school in Hyderabad city. These 5 patients selected from a pool of 15 patients were lying in the range of moderate symptoms with a higher score on stereotypical and repetitive behaviours.
Pre- and post-test scores were taken to evaluate the effects of dance movements on their behaviours. Only moderate ASD cases who showed no intellectual or any co-morbid disorder were included in the study. These children had repetitive behaviours such as hand flapping, rocking body, head nodding, thumb sucking, making peculiar sounds, shaking body, swinging round and round, and tip toe walking. All the participants had functional upper and lower limbs. Purposive sampling was used for the collection of sample.
These cases were selected because children with mild symptoms generally do not require much support but those with moderate level of symptoms require guided intervention. The moderate range of autism is more elaborated with less-specific boundaries; it increases the scope of intervention overall.
The ASSQ was developed as a screening instrument for high-functioning patients with autistic disorders. This test was designed to assess children aged 7–16 years with normal intelligence to mild MR. The ASSQ consists of 27 items rated on a 3-point scale (0, 1, or 2; 0 indicates normality, 1 some abnormality, and 2 definite abnormality). Test–retest reliability of this scale was found to be 0.96 in case of parents’ reports and 0.94 in case of teachers’ reports.
Validity scores with two general measures of psychopathology were 0.75 and 0.58 for parents’ reports and 0.77 and 0.70 with teachers’ reports. The ASSQ scores were significantly different amongst three groups of children with ASD, attention-deficit and disruptive disorders and learning disorder from children with ASD from children with attention-deficit and disruptive disorders, and learning disorder with a sensitivity of 62% and a specificity of 90% for parent reports and with a sensitivity of 70% and a specificity of 91% for teacher reports.
The Behavioural Assessment Scales for Indian Children with Mental Retardation (BASIC-MR) Part B has been designed to elicit systematic information on the current level of behaviours in school-going children with mental impairment. The scale is suitable for mentally impaired children aged between 3 and 16 (or 18) years. However, the teacher may find the scales useful for even older severely retarded individuals. The scale is relevant for behavioural assessment and can also be used as a curriculum guide for programme planning and training based on the individual needs of each mentally impaired child. The items included in part B of the scale helps to assess the current level of behavioural problem in the child. The BASIC-MR Part B consists of 75 items grouped under 10 domains (Violent and destructive behaviours, Temper tantrums, Misbehave with others, Self injurious behaviours, Repetitive behaviours, Odd behaviours, Hyperactive behaviours, Rebellious behaviours, Antisocial behaviour and Fears). The test–retest reliability of this tool was found to be 0.68. The construct validity was established by measuring the significant difference between the mean scores at pre- and post-test levels. This change was found to be statistically significant (p < 0.001).
The topic was approved by the Institutional Review Board of the institute. The letter of approval from the institute was shown to the head of the special education school and the final permission for data collection was obtained. Cases were identified after consulting with the psychiatrists and the selection was performed after checking the records. Afterwards, the parents were informed and the consent was obtained from the parents of the children. Pre- and post-test assessments in A-B-A sequence were performed done through BASIC-MR Part B and ASSQ screening tool, where A was baseline assessment, B was intervention and A was re-assessment. This intervention plan consisted of 15 sessions (1 hour per session on a daily basis). One week of regular observation was performed followed by 15 sessions and then again 1-week observation. Techniques used to ensure participation in dance activity were prompting, modelling, reinforcement and instructions in the intervention of dance movement.
The dance movement therapy combines creative expression through dance and movement, the use of music, play and body awareness exercises. The below-mentioned parts are included in preparing the dance movement therapy session. Group sessions are often divided into five parts:
Opening ritual (saying hello and good morning to each other). Check-in (forming a circle to get adjusted with everyone and then walking hand in hand with any partner) Body warm-up (exercising. walking in, sports and some hand movement exercises). Actual session with music: Rhymes and poems of different types were played and dance steps including jumping, zigzag movements, clapping and touching the ground, feet and shoulders were involved Closing ritual (saying goodbye to everyone).
Opening ritual (saying hello and good morning to each other).
Check-in (forming a circle to get adjusted with everyone and then walking hand in hand with any partner)
Body warm-up (exercising. walking in, sports and some hand movement exercises).
Actual session with music: Rhymes and poems of different types were played and dance steps including jumping, zigzag movements, clapping and touching the ground, feet and shoulders were involved
Closing ritual (saying goodbye to everyone).
This 9-year-old boy had much suffering with the head nodding, rocking body, making peculiar sounds and shaking body. In the initial sessions of interventions, he was quiet observant of others and did not follow any of the instructions. No response was generated from his side. He was very aggressive and stubborn by his behaviour and did not try to participate in the activities and made any movements. He used to stand still in the sessions. After the fourth session, he gradually started getting involved in the activities and started enjoying the music and dance. In the eighth session, he himself started doing activities on single instruction and making little movements of dance on music. From 10th session onwards, he started doing opening rituals and passing smile. The instructor could notice the improvements in head nodding and peculiar sounds. He became less aggressive as he started enjoying the sessions and the company of other children. He scored 87.5% cumulative scores in the pre-test evaluation and 75% cumulative scores in the post-test evaluation, which indicates a positive change in the repetitive and stereotypical behaviour of the case.
A 10-year-old boy had speech impairments and difficulty in verbal communication. He was showing symptoms such as rocking body, head nodding, thumb sucking and shaking body. He initially had very strong resistance and showed no interest in joining the sessions in the beginning. He used to cry during the initial sessions. So, the instructor started giving him the reinforcement such as clapping after each movement. Then in the fifth session, he himself picked one ball and kept it in the bowl and clapped for himself. From that very day, he started getting engaged in the activities. Whenever he was in a good mood, he used to move his head all around. It was not difficult to engage him in the activity with music because he had liking towards music. He also used to follow instructions not only in the session room but also in the class room. The instructor noticed improvement in head nodding and body shaking of the case. He scored 87.5% cumulative scores in the pre-test evaluation and 81.2% in the post-test evaluation, indicating a positive change in the repetitive behaviour of the case.
Case-wise scores of Autism Spectrum Screening Questionnaire (ASSQ) and other details
Note: A score above 20 indicates symptoms of autism spectrum disorder
Pre- and post-test scores of BASIC-MR Part B (subscale for repetitive behaviour)
Head nodding, thumb sucking and making peculiar sounds was evident in this case of 15-year-old girl. She was fairly participating in activities and following all instructions, but she always left the activities in the middle. She was very lethargic in doing movements. The instructor had to intervene for making the dance moves. She used to make peculiar sounds again and again while dancing also. This case used to repeat her name during the activities. The case started showing progress from the fourth session when she started to move her body by herself without assistance. During these movements, the peculiar sounds were also reduced. She started completing the activities towards the end of eighth sessions and could completely follow it by towards the last sessions. She also had inclination towards the song ‘Lakdi Ki Kathi’ (a famous Hindi rhyme). She scored 81.2% cumulative scores in her pre-test evaluation and 75% cumulative scores in her post-test evaluation. This indicates a positive change in the repetitive and stereotypical behaviour of the case.
A 9-year-old boy had been so stubborn and restless throughout the sessions. He was struggling with head nodding, rocking body, making peculiar sounds and swinging round and round. Immediately after entering the room, he used to remove his shoes and jump on the trampoline. He never followed the instructions in the beginning. The instructor had to intervene for his participation. Moreover, he was much interested in listening to the music and watching the video instead of doing dance movements. However, he started doing ball activity from the eighth session and also started following few instructions; his participation in the activities was very inconsistent and irregular. He was always interested in running away from the room. He scored 87.5% in the pre-test as well as in the post-test evaluation. Hence, no improvements could be observed in this case pertaining to repetitive and stereotypical behaviours.
This 11-year-old girl was very rigid, aggressive and stubborn, having symptoms such as rocking body, head nodding, thumb sucking and making peculiar sounds. She was absent minded and never listened to the instructor. She always wanted to sit in the room but never wanted to dance in the beginning of the sessions. The instructor had to intervene her every time to make her move. She was resistant about doing any activity. She used to put everything in her mouth. Despite the reinforcements, this case did not show any improvements. She scored 81.2% cumulative scores in her pre-test as well as in her post-test evaluation. Hence, a positive change could not be observed in repetitive and stereotypical behaviour of the case.
The study consisted of five participants diagnosed with moderate ASD. Three of the five cases have shown improvement in the stereotypical and repetitive behaviour such as head nodding, making peculiar sounds and rocking body. Hence, the hypothesis that dance movement will bring positive change in stereotypical and repetitive behaviour of children diagnosed with ASD is partially approved. The participants took three to five sessions to adapt the activity and to get connected with others in the group. The findings of the current study are partially in accordance with the findings of Martin (2014), where he assessed the effectiveness of dance movement on children with autism.
Research shows that movement and exercise can spark the growth of new brain cells and facilitate learning (Ratey, 2008). However, the research is more focused on body awareness and sense of self, creativity, leadership and taking initiative in both children and adults (Kalish, 1968; Levy, 1988; Payne, 1990). Nadel and his associates (1999) worked on imitation as a communicative means in infant with autism and found significant correlation between imitation and positive social behaviour and also found imitation as a good predictor of social capacities in children with autism. These findings were in consistence with the similar studies (Dawson & Adams 1984; Tiegerman & Primavera, 1981). Older studies have been conducted on imitation, reflection and synchronous movement work in children with autism to cultivate social interactions amongst them (Costonis, 1974). Amongst later studies, one focused on substituting the instructor with humanoid robot (Robins at al., 2004) in which positives effects were observed on responsiveness and social skills of people with autism. Most recent pre- and post-test study aimed to investigate the influence of dance movement on children diagnosed with ASD was conducted on a sample of 45 participants who were given 24 sessions of 1 hour each, twice in a week. The results brought significant changes in the participants including enhancing language and facilitate communication in the children with autism (Souza-Santos, Dos Santos, Azevedo-Santos, & Teixeira-Machado, 2018).
Another research was conducted to assess the effect of exercycle on repetitive behaviour of children diagnosed with ASD. The exercycle involved both physical as well as mental exercises simultaneously. This research did not give much effective results to the repetitive behaviour of children with autism, hence, suggested for further investigations to observe the effective changes in children (Hanley et al., 2011).
Most of the studies concern common behavioural problems of such cases, such as aggression, self-injurious behaviours and interfering repetitive behaviours (Kay & Tasman, 1996), and some studies were performed on developing therapeutic relationship (Porter, 2012) in which effectieve changes are observed in response to dance movements and mirroring, which is said to be an effective approach in such cases (Eberhard-Kaechele, 2012; McGarry & Russo, 2011).
As the individual scores do not suggest strong difference in the pre- and post-test assessments of all the cases, it will be superlative to conclude that dance movements will bring positive change in stereotypical and repetitive behaviours of children with ASD. In some cases, it may be useful. However, future studies are required pertaining to this domain because the available literature emphasises more on the role of dance movements on social communication, language and other aspects. Stereotypical and repetitive behaviours are very less explored in this context.
The current study explains the positive role of dance movement on stereotypical and repetitive behaviours of children with ASD. It is concluded that stereotypical and repetitive behaviours such as head nodding, rocking body and making peculiar sounds may be improved with dance movements in some cases. However, this facilitation does not provide complete assurance.
Pre- and post-test scores of BASIC-MR Part B (subscale for repetitive behaviour)
Case-wise scores of Autism Spectrum Screening Questionnaire (ASSQ) and other details
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