This is a mentored Research Scientist Career Development Award for research and training support. Object recognition is an essential function of the human visual system and is subserved by activation in the temporal lobe of the brain. People with autism sometimes display atypical object recognition and decreased temporal lobe activation compared to controls. Although object recognition skills usually improve into adulthood, preliminary data from these researchers show that the accuracy of face recognition does not change from childhood to adulthood in people with autism, indicating differing developmental processes. This study will: 1) examine the late developmental changes in object recognition skills in children and adolescents with and without autism, and 2) better characterize changes in brain function related to this behavioral development and how it differs in autism. Eye tracking will reveal whether people with autism use unique, possibly immature, strategies on many of these tasks. Neuroimaging studies will examine whether people with autism display an immature pattern of brain function or utilize a distinct network. These studies will help identify the neural bases for atypical face recognition in autistic adolescents, begin to delineate the range of deficits, and examine the developmental trajectory of these skills.