Taking Action Flashcards
Gradient flow
Provides info about how fast one is moving
Focus of expansion
Provides info about our destination we are moving towards
Invariant information
Information that remains constant when observer is moving through the environment
Self-produced information
When a person makes a movement, that movement provides info that guides further movements
Ecological approach emphasizes
1) moving observer
2) identifying invariant information in environment to use for perception
3) senses work together
Proof for optic flow usage
- artificial optic flow pictures
- monitoring and stimulating of neurons in MST of monkeys performing optic flow task
Wayfinding
Type of navigation that requires you to take a route involving many turns
Landmarks
Objects in route that serve as cues to indicate where to turn
What area of brain helps in wayfinding?
Retrosplenial cortex
Affordances
Information that indicates what objects are used for
Areas involved in reaching for objects
Parietal reach region
Visuomotor grip cells
Respond when monkeys sees object and performs grasping action
Mirror neurons
Neurons that respond both when individual observes and performs an action
Research suggests mirror neurons help understand
1) communication with facial features
2) gestures while speaking
3) meanings of sentences
4) differences between ourselves and others
