The paper addresses the need to define terms used in vision training before successful programs can be formulated. Critical behaviors in three categories (visual attending, visual examining, and visually guided motor) are considered as are program alternatives focusing on visual environment management, visual skills training, and visually…

Tests infants' dual-process performance (a process mediating response decrements called habituation and a state-dependent process mediating response increments called sensitization) on visual habituation-dishabituation tasks. (HOD)

Most children who are congenitally deafblind are severely delayed in their communication development and many will not achieve symbolic understanding and expression. This article discusses developmental markers cited in the research literature as predictive of or facilitative of the development of symbolism. These markers include the growth toward…