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. 2014 Aug 12;4(8):e424. doi: 10.1038/tp.2014.65

Table 2. The eight behaviors presently evaluated by the observation-based classifier together 20 .

Behavior targeted
Core domain
Frequency of vocalization directed to others Communication
Eye contact Social interaction
Social smile Social interaction
Shared enjoyment in interaction Social interaction
Showing Social interaction
Initiation of joint attention Social interaction
Functional play with objects Play
Imagination/creativity Play