Positional acuity without monocular cues

The accuracy with which human observers can determine the spatial location of a shape boundary was measured by vernier alignment. The vernier targets were presented as random-dot stereograms, with varying amounts of camouflage in the monocular image. Camouflage decreased vernier acuity, but when the camouflage was broken by stereoscopic disparity, acuity was improved. In the limiting case when the shape boundaries were defined by disparity information alone, vernier thresholds (75% correct, binary forced-choice) were in the region of 40 s visual angle. This is poor acuity in comparison to vernier thresholds with monocular contour, but if the limited resolution acuity for stereopsis is taken into account, cyclopean and monocular positional acuities can be considered quite similar in relation to their respective resolution limits.     

Primary school children rate children with autism negatively on looks,speech and speech content

Adults and adolescents form negative first impressions of ASD adults and children. We examined the first impression ratings of primary school children (6–9 years) of their ASD peers. 146 school children rated either silent videos, speech or transcribe speech from 14 actors (7 ASD, 7 TD). The ASD actors were rated more negatively than the typically developing actors on all three stimulus types. Children with ASD are likely to be judged more negatively than their peers at the very start of their formal education. Contrary to previous research, for primary school children, the content of the speech was judged as negatively as the delivery of the speech.