Perceptual coupling induces co-rotation and speeds up alternations in adjacent bi-stable structure-from-motion objects

Data and analysis for the "Perceptual coupling induces co-rotation and speeds up alternations in adjacent bi-stable structure-from-motion objects" manuscript currently submitted to Journal of Vision.

Analysis

The complete analysis, including all figures and statistical comparisons, can be found in Jupyter notebooks.

Data files format

Experiment 1

Each row corresponds to a single event that occurred during a block.

Session-specific columns:

• Observer observer ID, matches the file name
• SessionID timestamp for the session start

Block-specific columns:

• Block block index
• Shape shape used for the block, either sphere-0500 or cross-0500
• Gap spatial layout condition for the block:
  • -0.15 the overlap condition
  • 0 the touching condition
  • 0.15 the gap condition
• Unambiguious ambiguity condition for the block
• Direction direction of rotation for the biased object, if applicable. -1 correspond to the rotation to the left, whereas 1 to the right.

Event-specific columns:

• Percept experimental event (start or stop, resplectively the start and end of the block) or the pressed button (up, left, down, right). unclear means that no key was pressed at that time. Buttons correspond to the following perceptual states:
  • left for both objects the direction of rotation was to the left (i.e., object’s front surface moved to the left)
  • right both objects rotated to the right.
  • down the left object rotated to the left, whereas the right object rotated to the right.
  • up the left object rotated to the right and the right object rotated to the left.

Experiment 2

The original data is stored in Matlab .mat files. Same raw data is also stored in a single CSV-file Experiment 2.csv with following columns:

• ObserverID unique observer ID
• DisplayType spatial layout of the two spheres:
  • H horizontally arranged
  • V Vertically arranged.
• RotationAxis axis of rotation:
  • X horizontal'
  • Y vertical
• Background background type:
  • 0 uniform
  • 1 textured
• Distance distance between the spheres in the units of the radius.
• Percept reported percept:
  • -2 unclear
  • -1 counter-rotation
  • 1 co-rotation
• Time time relative the start of the block in seconds

License

All data (and associated content) is licensed under the CC-By Attribution 4.0 International License. All code is licensed under the MIT License.