Attention to 3-D shape, 3-D motion, and texture in 3-D structure from motion displays

J Cogn Neurosci. 2004 May;16(4):665-82. doi: 10.1162/089892904323057371.

Abstract

We used fMRI to directly compare the neural substrates of three-dimensional (3-D) shape and motion processing for realistic textured objects rotating in depth. Subjects made judgments about several different attributes of these objects, including 3-D shape, the 3-D motion, and the scale of surface texture. For all of these tasks, we equated visual input, motor output, and task difficulty, and we controlled for differences in spatial attention. Judgments about 3-D shape from motion involve both parietal and occipito-temporal regions. The processing of 3-D shape is associated with the analysis of 3-D motion in parietal regions and the analysis of surface texture in occipito-temporal regions, which is consistent with the different behavioral roles that are typically attributed to the dorsal and ventral processing streams.

Publication types

  • Clinical Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Attention / physiology
  • Discrimination, Psychological / physiology
  • Female
  • Fixation, Ocular / physiology
  • Form Perception / physiology*
  • Humans
  • Image Processing, Computer-Assisted
  • Magnetic Resonance Imaging
  • Male
  • Motion Perception / physiology*
  • Nerve Net / physiology
  • Occipital Lobe / physiology
  • Parietal Lobe / physiology
  • Photic Stimulation
  • Psychomotor Performance / physiology
  • Rotation
  • Temporal Lobe / physiology