Two new experimental operations were used to distinguish between auditory and phonetic levels of processing in speech perception: the first based on reaction time data in speeded classification tasks with synthetic speech stimuli, and the second based on average evoked potentials recorded concurrently in the same tasks. (Editor)

Attempts to establish the degree of perspective convergence, which the Western observer will accept as a realistic portrayal of objects drawn in perspective, and to determine the relationship between acceptable convergence and viewing conditions. (Author/RK)