Which option best describes Phase 2?

• A. Movement coordination emerges in adolescence
• B. Auditory and visual integrate in infancy
• C. Phase 2: tactile, vestibular, proprioceptive integrate for emotional stability, second year
• D. Speech and language depend on senses

Answer: (C)

The main idea here is how a toddler’s nervous system begins to organize sensation to support emotional regulation. In Phase 2, the child starts to integrate tactile input with movement-related senses (vestibular and proprioceptive) to achieve emotional stability. This combination helps the child calm down, stay organized, and engage with people and activities more predictably during the second year.

Why this fits best: tactile input gives the child information about touch, textures, and pressure; vestibular input helps with balance, head position, and movement through space; proprioceptive input provides a sense of body position and effort. When these senses are integrated, the child has better self-regulation and can approach play, social interactions, and daily routines with more emotional steadiness. This is developmentally appropriate for the second year when exploration, mobility, and social engagement increase.

Why the other statements don’t fit Phase 2 as described: the idea that movement coordination emerges in adolescence is too late for the phase in question; auditory and visual integration is something that typically occurs earlier in infancy; and while speech and language rely on sensory input, this option doesn’t capture the Phase 2 focus on combining tactile, vestibular, and proprioceptive inputs for emotional regulation in the second year.