The "all or none law" is the principle stating that ________
a. a neuron fires at full strength or not at all
b. all neurons in an area fire at the same intensity or not at all
c. a neuron must be receiving only "fire" messages through its dendrites or it will not fire at all
d. all the neurons in a particular area of the brain fire simultaneously or not at all
Answer: a
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The interquartile range is the score at the 75th percentile minus the score at the 25th percentile.
Answer the following statement true (T) or false (F)
When an individual accumulates a specified number of tokens in a token economy, the tokens are exchanged for ____________ reinforcers
a. conditioned b. backup c. secondary d. negative
Joseph goes out with his friends for pizza. Unbeknownst to him, he is coming down with a stomach virus. When the nausea associated with the virus kicks in, he vomits. Now, Joseph cannot even look at a pizza without feeling nauseous. In this example, the conditioned stimulus is ____
a. ?the friends b. ?vomiting c. ?the pizza d. ?the flu
James suffered brain damage due to carbon monoxide poisoning. He is now unable to remember events from his past. James is experiencing _____________
a. forgetfulness c. retrograde amnesia b. early onset dementia d. anterograde amnesia