**5. Conclusion**

Although the synaesthetic perception is considered a sensory experience, it has ramifications for language learning and processing. Synaesthesia has been linked to changes in perception, language, memory, and creativity. The claims of Ramachandran and Hubbard, on the contribution of synaesthesia in the evolution of language, inspire the speech-language pathologist to explore its impact on atypical language development. Differences in sensory perception may be one of the causes of the onset of rote language in children with ASD. The most common feature in the cases mentioned above is the use of rote language. The presentation of rote language varies across individuals, with one having superior verbal recall for numerals, the other for letters, and so on. The ability to recall these mnemonic-ordered verbal expressions can be exploited in language intervention. Although there are various presentations, the basic proclivity for rote language suggests that it should be used to learn a functional language [29]. The observations described here as case examples are inferential and incidental. Despite an early diagnosis and intervention, the children remained unresponsive to stimuli or methods used for language intervention until the intervention was facilitated by their perceptual processing skills, as demonstrated by these case studies. Complete profiling of the synaesthetic skills in children with ASD is important to understand the underlying perception that could be exploited to facilitate language. Children's heterogeneity and inter-subject variability must not interfere with the understanding of the existing synaesthesia. The perceptual skills of children with ASD are sparsely recorded and documented in language evaluations. The sensory processing differences cannot be bypassed while addressing the language impairment in these children. These sensory differences have implications for understanding phenomena such as synaesthesia, which could be exploited for language learning during the intervention. The narrative accounts of individuals on the spectrum give an understanding of how they perceive the world differently. The difference in perception is often explicit in their verbal and non-verbal behaviours. When these verbal and nonverbal behaviors are observed, analyzed cautiously, and related to their specific activities of interest, the underlying synaesthetic skills can be understood and utilized. There is a research gap in mapping the existing sensory profile in children with ASD to the synaesthesia types due to the heterogeneity in the presentation of both conditions. However, as a saying by Carl Jung goes, "In all chaos, there is a cosmos, in all disorder, there is a secret order." The order behind these two heterogeneous scenarios must be explored to develop protocols for language intervention for children with ASD.

*Perspective Chapter: Synaesthesia in Children with Autism – Observations Related to Language... DOI: http://dx.doi.org/10.5772/intechopen.108673*
