This study uses factor mixture modelling of the Short Sensory Profile (SSP) at two time points to describe subgroups of young autistic and typically-developing children. This approach allows separate SSP subscales to influence overall SSP performance differentially across subgroups. Three subgroups were described, one including almost all typically-developing participants plus many autistic participants. SSP performance of a second, largely-autistic subgroup was predominantly shaped by a subscale indexing behaviours of low energy/weakness. Finally, the third subgroup, again largely autistic, contained participants with low (or more “atypical”) SSP scores across most subscales. In this subgroup, autistic participants exhibited large P1 amplitudes to loud sounds. Autistic participants in subgroups with more atypical SSP scores had higher anxiety and more sleep disturbances.

本研究在两个时间点使用短感觉轮廓 (SSP) 的因子混合模型来描述年轻自闭症和正常发育儿童的亚组。这种方法允许单独的 SSP 子量表对不同子组的整体 SSP 性能产生不同的影响。描述了三个亚组，一个包括几乎所有典型发育的参与者以及许多自闭症参与者。第二个，主要是自闭症亚组的 SSP 表现主要由低能量/弱点的子量表索引行为塑造。最后，第三个亚组，同样主要是自闭症患者，包含在大多数分量表中 SSP 得分较低（或更“非典型”）的参与者。在这个亚组中，自闭症参与者对响亮的声音表现出较大的 P1 振幅。