Edward B. Titchener defined perception âas a group of sensations to which meaning is added from past experiences.â In contemporary psychology, perception is commonly treated as an intervening variable dependent upon stimulus factor, earning sets, moods, and emotional and motivational conditions of the organism.
Piwakawaka or Fantail. The fantail or Piwakawaka is a small native forest bird with a small head and bill and a long tail which opens to a fan, giving the bird its name. It has a grey head, white eyebrow and white and black band under the chin on the upper chest.Its tail is black and white.The scientific name for fantail is Rhipidura fuliginosa. This well named bird has been able to adapt itself very satisfactorily to an environment that has changed over the centuries.t has a grey head, white eyebrow and white and black band under the chin on the upper chest. Its tail is black and white. The scientific name for fantail is Rhipidura fuliginosa. This well named bird has been able to adapt itself very satisfactorily to an environment that has changed over the centuries.
The American pika, known in the 19th century as the little chief hare, has a small, round, ovate body. Their body length ranges from 162 to 216 mm (6â8 in).Their hind feet range from 25 to 35 mm (1â1Â½ in). They usually weigh about 170 g (6 oz).he American pika is intermediate in size among pikas. The hind legs of the pika do not seem to be much longer than its front legs and its hind feet are relatively short when compared to most other lagomorphs. It has densely furred soles on its feet except for black pads at the ends of the toes.