Question

question 7
1 pts
in the brain, communication within a messenger cell is electrical and between those cells is chemical. those chemicals are called:
hormones
neurotransmitters
neurons
glial
question 8
1 pts
josh had to give a book report in class. to do this, he read the entire book and knew the plot line. however, a question on the report made him break the material down and talk specifically about one chapter. to do this, he would have to use:
bottom - up processing
parallel processing
top - down processing
serial processing
question 9
1 pts
short - term memory has a ______ duration and a ______ capacity compared to sensory store.
shorter; smaller
shorter; larger
longer; larger
longer; smaller

Explanation:

• Question 7:
• Hormones are chemical messengers in the endocrine system, not specifically for brain - cell - to - cell communication.
• Neurons are the cells themselves, not the chemicals.
• Glial cells are support cells in the nervous system, not the chemical messengers.
• Neurotransmitters are the chemicals that neurons use to communicate with each other.
• Question 8:
• Bottom - up processing starts from the details (like individual elements) and builds up. But Josh had the whole (the entire book) and then focused on a part (a chapter), which is not bottom - up.
• Parallel processing is about doing multiple things at once, not relevant here.
• Serial processing is about doing things one after another in a sequence, not relevant to the described cognitive task.
• Top - down processing uses prior knowledge (Josh knew the whole book's plot) to understand and analyze a part (a chapter).
• Question 9:
• Sensory store has a very short duration (milliseconds to a few seconds) but a relatively large capacity (it can take in a lot of sensory information).
• Short - term memory has a longer duration (seconds to about 30 seconds without rehearsal) compared to the sensory store. But its capacity (about 7 ± 2 items) is smaller than the sensory store's large capacity (which can hold a vast amount of unprocessed sensory information).

Answer:

• Question 7: Neurotransmitters
• Question 8: Top - down processing
• Question 9: Longer; smaller