Psychology Problems Advice Info

Here’s the deal: I’m teaching myself about Psychology using a text book. The only problem is, there are lots of self-assessments but no answer guides. So I have no way of knowing if my answers are correct or not. I was hoping to get your input on my answers (and on the few questions I just don’t know) in order to make up for not having an actual guide to grade them by.

Thanks for any help you can give! :)

1. One example of selective attention is
a. sound perception.
b. cocktail party effect.
c. figure-ground relationship.
d. misperception.

My answer: b

2. Brain-related exercises like crossword puzzles can combat age-related memory problems by strengthening the
a. cerebellum.
b. occipital lobe.
c. neural pathways.
d. dendrites.

My answer: c

3. Hans is watching television while talking on the phone to his friend about their favorite video game. When he hangs up, Hans doesn’t remember what was on television while he was talking to his friend. Which of the following best explains Hans’s experience?
a. A human brain can’t process and interpret visual and auditory stimuli at the same time.
b. Selective attention allows us to sense some stimuli without actually perceiving them.
c. When we encounter several stimuli, we will only sense the ones that are loudest.
d. When we encounter a figure-ground relationship, we have to separate stimuli from one another.

My answer: b

4. Which best explains why some parts of the body are more sensitive than others?
a. Sensitive areas of the body have thinner skin.
b. Sensitive areas of the body have more nerve endings.
c. Sensitive areas of the body have the dermis closer to the epidermis.
d. Sensitive areas of the body have a greater concentration of hair follicles.

My answer: b

5. Which most likely results from damaged nerve endings?
a. The person gives an inappropriate response to stimuli.
b. The person does not sense pain.
c. The person experiences heat as cold.
d. The person’s surrounding nerve endings become more sensitive.

My answer: unsure…definitely not c

6. Which of the following provides the strongest evidence that nonhuman animals dream?
a. Recordings of brain activity show that nonhuman animals undergo REM sleep.
b. Recordings of brain activity show that nonhuman animals register alpha brain waves.
c. Nonhuman animals need consistent sleeping patterns and require a specific amount of sleep.
d. Observations of nonhuman animals sleeping show movement of the eyes and legs.

My answer: unsure…but, again, definitely not c. And I don’t think it’s b, either.

7. Meditation may be helpful in the reduction of pain. What is a possible explanation for this effect?
a. Meditation clears the mind so that painful stimuli cannot be sensed or processed.
b. Meditation relaxes the muscles and nerve endings so they are less likely to sense painful stimuli.
c. Meditation reduces the stress and anxiety which contribute to our perception of painful stimuli.
d. Meditation is challenging and can make you a stronger person capable of handling pain.

My answer: unsure, but I’m pretty positive it’s not d.

Thanks again for your help! :)