POWERPOINT PRESENTATION OF

Dr.KESIRAJU RAMPRASAD

PERCEPTION

WHAT IS PERCEPTION

• THE PROCESS BY WHICH AN INDIVIDUAL SELECTS, ORGANISES, AND INTERPRETS STIMULI INTO A MEANINGFUL AND COHERENT PICTURE OF THE WORLD.

PERCEPTION MEANS

• YOUR INTERPRETATION OF REALITY AFTER INFORMATION/ STIMULI IS……

• (A) FILTERED OUT• (B)SELECTED• ©ORGANISED• (D)DEFINED

• CONTD…..

• USING YOPUR EXISTING KNOWLEDGE• (A) KNOWLEDGE• (B)NEEDS• © BELIEFS• (D) VALUES• (E)ASSUMPTIONS• (F) ATTITUDES

PERCEPTION

In this BELOW test DO NOT READ the words, say aloud the COLOR of each word

YELLOW BLUE ORANGEBLACK RED GREENPURPLE YELLOW REDORANGE GREEN BLACKBLUE RED PURPLEGREEN BLUE ORANGE

Which of the following two images of the tower of Pisa seems to be leaning more

PERCEPTION

PERCEPTION• The images are actually identical, but the tower on the right seems to lean

more because the human visual system treats the two images as one scene.

• Our brains are conditioned to expect parallel towers to converge toward a common vanishing point, but because the tower on the right does not converge, our visual system interprets that it is leaning at a different angle

• . A common example of this conditioning is the way 3D movies and 3D TVs trick our minds into believing that images are actually coming out of the screen, when in fact they are not. Our minds are conditioned to believe 3D images move in 3 dimensions.

• With a bit of technical help, we can trick our minds into visualizing this on a 2D screen. Below is a perspective drawing with three vanishing points of what our eyes expect

• Hold your head steady and fix your eyes on the dot in the center of the picture. The colored dots will seem to disappear in a few seconds. The effect is due to retinal fatigue which occurs when the afterimage of an object cancels the stimulus of the object on the retina. The effect is most pronounced when the objects do not have well-defined edges that are detectable by small eye movements

• The circles appear to rotate when you move your head closer and further away from the screen while looking at the dot in the center. Our peripheral vision interprets the relative increase or decrease of the image in the retina as rotational motion of the slanted lines.

PERCEPTION

• WHICH VERTICAL LINE IS BIGGER IN THE NEXT SLIDE?

• (a) LEFT PICTURE • (B) RIGHT PICTURE

PERCEPTION

PERCEPTION

• The Vertical lines are both the same length.

•WHICH DIAGONAL LINES A-B AND B-C ARE BIGGER IN THE NEXT SLIDE?

PERCEPTION

•The diagonal lines A-B and B-C are equal in length.

•ARE THE DIAGNAL LINES ARE PARALLEL?

PERCEPTION

PERCEPTION

•The diagonal lines are parallel

• Blind Spot ExperimentThe retina is the part of the eye covered with receptors that respond to light. A small portion of the retina where the optic nerve connects to the brain has no receptors. An image that falls on this region will not be seen. Close your right eye.

Close your right eye. With your left eye, look at the L below. Slowly move your head closer or further away from the screen while looking at the L. The R will disappear when your head is approximately 50 cm (20 in) from the screen. You can repeat the experiment with your right eye by looking at the R.

PERCEPTION

•ARE THE THESE LINES ARE PARALLEL IN THE NEXT SLIDE?

PERCEPTION

The radiating lines influence our perception of the parallel lines

.The radiating lines influence our perception of the parallel lines

•WHICH CENTRE CIRCLE IS BIGGER IN THE NEXT SLIDE?

PERCEPTION

PERCEPTION

• The center circles are both the same size

PERCEPTION

• There are only white circles at the intersections

PERCEPTION

PERCEPTION

Illusory ContoursAlthough there are only circles with sections taken out of them, our eyes strive to see triangles. The sides of the triangles may appear curved when the angles of the sections do not add up to 180 degrees

PERCEPTION

Rotating Wheels

The circles appear to rotate when you move your head closer and further away from the screen while looking at the dot in the center. Our peripheral vision interprets the relative increase or decrease of the image in the retina as rotational motion of the slanted lines.

PERCEPTION

• Warped Squares?There are no curved lines in these figures. You can use a ruler to check it out.The diagonal patterns created by the tiny squares distort the perception of the pictures

PERCEPTION

PERCEPTION

PERCEPTION

• Shifting gearsAfterimages of complementary colors create apparent movement in our peripheral visionas our eyes shift across the page

PERCEPTION

•A portion of misplaced lines can be clearly identified as forming a circle, even when there is no outline of a circle

PERCEPTION

•OBSERVE THE NEXT FEW SLIDES CAREFULLY.

PERCEPTION

• THE WORD IN THE PICTURE IS ILLUSION.• LOOK CAREFULLY.

PERCEPTION

• THE WORD IN THE ABOVE PICTURE IS

•LIFT

•Two Words in One Painting

•One face? Or two profiles facing each other

See this photo of Albert Einstein?

Get out of your seat and look at it from ten feet away,

It will morph into Marilyn Monroe

A Native American profile?

Or an Eskimo entering a cave?

PERCEPTION

•ARE YOU ABLE TO SEE THE SERIES OF YATCHES OR PILLERS?

•THE ABOVE PICTURE IS FLAT

• YOU CAN FIND DIFFERENT PICURES IN THE BELOW SILDE

PERCEPTION

• YOU CAN FIND ONE MORE PICTURE IN THE ABOVE SLIDE

• WHAT ARE YOU OBSERVING IN THIS SLIDE? A OLD WOMAN OR

• A YOUNG LADY

WHAT IS THE NUMBER IN THIS PICTURE?

•PRESENTED BY•Dr.KESIRAJU RAMPRASAD• EDUCATIONAL

PSYCHOLOGIST AND COUNSELOR

• THANKS TO MANY PEOPLE WHO CONTRIBUTED GREAT KNOWLEDGE ABOUT THE PERCEPTION CONCEPT.

• MY GREATFUL THANKS TO ALL THE GREAT PEOPLE WHO CONTRIBUTED TO PREPARE THIS SLIDE.