Origin of Third Degree. The classification of the qualities of objects by degree - heat and cold, moisture and dryness etc. - was commonplace in the middle ages. Henry Lyte's translation of Dodoens' Niewe herball or historie of plantes , 1578 includes a description of rue:
"Rue is hoate and dry in the thirde degree."
Dr. Nancy Alvarado
Early stroboscopic entertainment devices
Poor performance on perceptual closure tests (right) has been associated with right hemisphere impairment.
In both cases, the horizontal line seems shorter than the vertical one, yet they are the same lengths.
Dogs and one-year-old children could do this task easily but chickens could not.
In both tasks the chicken pecks the square on the right.
Predicted by S-R theory
Predicted by Gestalt theory
Are chickens recognizing a particular gray stimulus or are they making a comparative judgment?
Sample devil masks used in Sri Lankan dancing (Ceylon) where the Cingalese people live.
where behavior (B) is a function f of a person (P) interacting with an environment (E).
E (P) E
Lewin used diagrams like this to describe life spaces
This task is difficult for a young child because the child must move in a direction opposite to the vector to obtain the chocolate.
play with friends
This choice is easy because both options are positive
The child wants to climb the tree but is frightened creating an approach/avoidance conflict – vectors wax and wane.
Task the child doesn’t want to do
Here the conflict between two undesirable events results in deflection sideways to a third vector R – escape from the field.