Humans and pigeons were trained to discriminate between 2 views of actual 3-D objects or their photographs. They were tested on novel views that were either within the closest rotational distance between the training views (interpolated) or outside of that range (extrapolated). When training views were 60? apart, pigeons, but not humans,…

Training programs for auditory and for visual figure-ground perception were constructed and tested with brain-damaged and mentally retarded children. Training groups showed higher gain scores than the control group on both tests, but the effect was significant only for visual training on visual figure-ground perception. (Author/SJL)

Seventeen visually impaired children, aged 7-11 years, were compared with sighted children on a test of facial recognition and a test of expression identification. The visually impaired children were less able to recognize faces successfully but showed no disadvantage in discerning facial expressions such as happiness, anger, surprise, or fear.…