Prior experience of rotation is not required for recognizing objects seen from different angles.
An object viewed from different angles can be recognized and distinguished from similar distractors after the viewer has had experience watching it rotate. It has been assumed that as an observer watches the rotation, separate representations of individual views become associated with one another. However, we show here that once monkeys learned to discriminate individual views of objects, they were able to recognize objects across rotations up to 60 degrees , even though there had been no opportunity to learn the association between different views. Our results suggest that object recognition across small or medium changes in viewing angle depends on features common to similar views of objects.
Wang
Gang
G
Department of Bioengineering, Faculty of Engineering, Kagoshima University, Kagoshima, Kagoshima 890-0065, Japan.
Obama
Shinji
S
Yamashita
Wakayo
W
Sugihara
Tadashi
T
Tanaka
Keiji
K
D000818:Animals; D003071:Cognition / Q000502:physiology; D005133:Eye Movements / Q000502:physiology; D005403:Fixation, Ocular / Q000502:physiology*; D007858:Learning / Q000502:physiology; D008253:Macaca mulatta; D008297:Male; D009483:Neuropsychological Tests; D009949:Orientation / Q000502:physiology*; D010364:Pattern Recognition, Visual / Q000502:physiology*; D010775:Photic Stimulation / Q000379:methods; D012399:Rotation; D013028:Space Perception / Q000502:physiology*; D013702:Temporal Lobe / Q000502:physiology; D014793:Visual Cortex / Q000502:physiology; D014795:Visual Pathways / Q000502:physiology