P-24: Terrain Texture and 3-D Object Cues in the Control of Heading in Simulated Flight

The effects of terrain texture type and the height and density of 3D objects on heading control were studied in two experiments conducted in a high‐performance flight simulator. The results suggest an orthogonal‐extension principle which relates performance to the number and length of contours that are perpendicular to the ground plane, and also begin to define the stimulus conditions for which the principle is valid.