Development of the Blind Child: Implications for Assessment and Intervention
Landau's chapter investigates object perception, spatial search, and the representation of objects in language. Rather than permanent deficits in these areas, the performance of the blind is comparable to that of the sighted, when sensory conditions are carefully matched. Reaching for objects develops later in blind infants-at an average of 7 to 12 months rather than 4 to 5 months in sighted infants. Reaching is facilitated, when sound cues are provided, but acquisition of the skill can be achieved following a normal sequence of precursor behaviors.