Abstract
The present investigation examined and compared the pilot's decision-making capabilities when visual stimuli, similar in nature to those used in helmet-mounted displays, were displayed separately in each visual field. Fifteen student subjects experienced three different combinations of spatial and verbal hemiretinal stimuli. On one third of the trials, the left hemiretinae received verbal information, while the right hemiretinae simultaneously received spatial-type information. On another third of the trials, each set of hemiretinae received the opposite type of stimuli. On the remainder of the trials, both hermiretinae simultaneously received the same verbal and spatial-type inputs. Results indicate that the performance measure of latency was significantly decreased under the condition of verbal input to the right hemiretinae and spatial-type input to the left. No accuracy effects were seen as a result of the varying hemifield of stimulation. It was concluded that responses to the verbal right presentations were faster because transcallosal transmission was either unnecessary or inconsequential to the response.
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