CBSE Class 11 Psychology Sensation Attentional And Perceptual Processes Assignment

1. Define the following: 

I. Sensation
II. Attention
III. Selective Attention
IV. Sustained Attention
V. Span of Attention
VI. Divided Attention
VII. Light adaptation
VIII. Dark adaptation
IX. Perception
X. Kinesthetic system
XI. Vestibular system
XII. Cognitive styles
XIII. Illusion

2. Why is dark adaptation a slower process than light adaptation? 

3. What are the psychological dimensions of sound? 

4. What are the dimensions of colour? 

 4. What are the dimensions of colour? 

5. Explain the functional limitations of sense organs.

6. Fill in the blanks:

(i) _______ contains the photoreceptors in our eye.
(ii) ________ muscles are attached to eye lens for the process of accommodation.
(iii) _______ is the region of maximum visual acuity.
(iv) From retina, a bundle of axons of ganglion cells forms the _______, which leads to the brain.
(v) _______ area in eye has no photoreceptors.
(vi) The photosensitive chemical substance present in rods is ___________.
(vii)The photosensitive chemical substance present in cones is __________.
(viii) ________ is the main organ of hearing in the human ear.
(ix) Among all sense modalities, ________ is the most highly developed in humans.
(x) Our eyes are sensitive to a spectrum of light, the wavelength of which ranges from ____ nm to ___ nm.
(xi) The lens divides the eye into 2 unequal chambers, namely________chamber and ______ chamber.

7. Explain the structure of human ear. 

8. Describe the working of human ear.

9. What are the factors affecting selective attention? 

10. Explain the following theories of attention: 

(a) Filter theory