

If his parents weren’t distracted, the resistance would become more definite and he might offer excuses such as, ‘I’m busy… I’ll do it in a minute… I want to do this first.’ His next level would be to say, ‘I feel sick… my tummy hurts’ and so on. Initially he would giggle, tease and run away. The smallest of demands would initiate ‘avoidance mode’ and he spent a huge amount of time and energy fighting off the demand, when a fraction of that time and energy would have accomplished the task.Ĭharlie would offer an escalating amount of resistance. This can take the form of shouting, screaming, throwing things and physically lashing out, often in very sudden and dramatic ways.Ĭharlie’s parents described how, at six years old, he wouldn’t co-operate with simple day-to-day tasks such as getting dressed and feeding himself. This is a form of panic on their part and is usually displayed when other strategies haven’t worked or when their anxiety is so high that they will ‘explode’ or have a ‘meltdown’. Those with PDA may also use straightforward refusal or outbursts of explosive behaviour, including aggression.

Underpinning this avoidance is an anxiety about conforming to social demands and of not being in control of the situation.

Newson proposed that PDA should be seen as a separate syndrome within the pervasive developmental disorders (PDDs), which was the recognised category used within the versions of the psychiatric classification systems current at the time (ICD-10, put forward by the World Health Organisation, and DSM-IV, by the American Psychiatric Association). 1 This was combined with sufficient social understanding and sociability to enable the child to be ‘socially manipulative’ in their avoidance.

The central feature was ‘an obsessional avoidance of the ordinary demands of everyday life’. As time went by it became apparent that, while these children were atypical of those with autism or Asperger syndrome, they were very similar to each other in some important ways. Newson and her colleagues felt increasingly dissatisfied with the description of ‘atypical autism’, feeling that it wasn’t helpful in removing the confusion that was often felt by parents and teachers who were struggling to gain greater insight into the child’s behaviour.
