SENSATION AND PERCEPTION

madbrainedmudlickΤεχνίτη Νοημοσύνη και Ρομποτική

20 Οκτ 2013 (πριν από 3 χρόνια και 5 μήνες)

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SENSATION AND PERCEPTION

Department of Psychology and Sociology

PSYC 4250










CSN/NGCSU

Ramachandran, V.S. & Rogers
-
Ramachandran, D. (2009) Half a World.
Scientific American Mind
,

20

(1), 18
-
20.

1. With respect to the symptoms mentioned in the
article what seems to be the locus for this pheno
-

menon? What seemed to be normal in Sally’s behavior?

2. Describe the symptoms of Sally’s stroke? What are her symptoms referred to?

3. What kind of disorder is Sally’s? How is similar to normal issues seen

in processing attention?

4. Which
neural
pathway
associated with visual attention is involved in Sally’s stroke?

5. Why is there no neglect with damage to same area on the left hemisphere? (see Mesulam’s notion)

6. Distinguish between the effects of strok
e to the right parietal cortex from those seen with similar

damage to the right occipital cortex.

7. What is significant about the authors’ referring to this form of neglect as “existential annihilation”?

8. What are the symptoms of
anosognosia

and
mirror

agnosia
?

9. Describe what took place when Sally was asked to respond to the image in the mirror? What was so

Surprising?

10. In the final analysis what was seen as “a more general disorder” in Sally’s case? Discuss in detail.


Quill, E. (2009) It’s writte
n all over your face.
Science News
,
175

(2), 24
-
28.

1. Identify and enumerate the variables mentioned in this article which influence facial attractiveness.

2. Discuss: “[A] new study links attractiveness to diversity in major histocompatibility complex.”

3. Identify “universal standards to attractiveness that everyone seems to apply.”

4. Describe the role of computer technology in research on facial attractiveness.

5. Why is that “distinctiveness”
in

one’s facial features may not be perceived as attractive
?

6. Describe the influence of facial movement in perceived attractiveness.

7. Discuss the apparent link between attractiveness and histocompatibility. (see Lie,
et al
.’s findings)

8. Describe the relationship between the menstrual cycle and male
attractiveness.

9. Account for the relationship between hormones in the male and female attractiveness.

10. How does one’s own perception of personal attractiveness and having others say influence
preferences?

11. What did fMRI data seem to reveal regardin
g the brain and attractive faces?

12.
What data cited in the article might suggest an innate tendency toward features of attractiveness?


Jacobs, G.H. & Nathans, J. (2009) The Evolution of Primate Color Vision.
Scientific American
,
300

(4),

56
-
63.

1. Defi
ne: trichromacy. Distinguish trichromacy from dichromacy (include an example of each).

2. Describe transduction in the retinal cones.

3. Discuss the genetic basis for trichromacy in the human.

4. What may be the adaptive significance of trichromacy?

5. Ide
ntify and discuss the two roads to trichromacy. Differentiate Old World

from New World primates.

What is “the poor woman’s” version of trichromacy?

6. At what point in development is S
-
pigment formed?

7. Describe what is meant by
X
-
inactivation

in female N
ew World primates.


8. What does it mean to say that a system or neural network is highly plastic? (include an example)

9. Discuss “plasticity” that may exist between M
-

and L
-
cones and the visual system.

10. What appears to be the relationship between L
-
wavelengths and spatial vision? How is it that

trichromacy may be “a hobby of the preexisting spatial vision system”?

11. In reference to the contents of this article what did the authors mean by saying that changes in the

“front end” of the visual syste
m is heavily involved in trichromacy? What was demonstrated with
genetic manipulations implanted in laboratory mice?

12.
Define: tetrachromacy. To what do scientists attribute this phenomenon?