DETERMINANTS OF

ATTENTION

BY-ANJALI RAI

ROLL NO. 07

ATTENTION Gateway to memory. Focusing on awareness. Process of psychological selectivity, by

which we select, from a vast number of available stimulus , only those which are related to present needs and interest

DETERMINANTS OF

ATTENTION

PHYSICAL CHARACTERSTICS

COLLATIVE CHARACTERSTICS

ORIENTATION RESPONSE

PHYSICAL CHARACTERSTICS OF STIMULI

PARADIGM USED: looking time, recording of eye fixation. More the SIZE / INTENSITY / MOVEMENT more is the attention. According to WOODSWORTH attention was more for moving,

large and bright stimuli. LEWIS EXPERIMENT (1973)

1. showed for 15 sec motion pictures of natural scenes and animated cartoons .

2. Asked observers to recall items

3. RESULT: size and movement captured attention.

COLLATIVE CHARACTERSTICS BERLYNE, 1960. Based on stimulus comparison. PARADIGM USED: looking time, number of times

looking to the same object, recording of eye fixation. NOVELTY/ INCONGRUITY/ COMPLEXITY determines

attention. Novel and incongruous objects are always preferred to

old and congruous objects. Complexity result was supported by inverted “U”

phenomenon, medium level more attention.

ORIENTATION RESPONSE LYNN, 1966. Based on skeletal (bodily) and psychological (internal)

changes that happens when stimulus is presented. Elicited by novel or intense stimuli.

1. LOCAL MOTOR RESPONSES.

2. GENERAL MOTOR RESPONSES.

3. ELECTROENCIPHAL GRAPH (EEG).

4. CONTRICTION AND DILATION OF BLOOD VESSELS.

CONTINUED….

1. HEART RATE.

2. RESPIRATION RATE.

3. PUPIL.

4. ELECTRODERMAL ACTIVITY.

THANKYOU…..