Day 4 Quiz

[vc_row][vc_column][vc_text_separator title=”Day 4 Question”][vc_column_text]A relatively new hypothesis called the Synaptic Homeostasis Hypothesis posits that sleep is the ‘price we have to pay’ for remaining flexible and adaptive to our environment.  This flexibility is called plasticity and refers to the capacity of the brain to change and learn.   The hypothesis makes a prediction that slow wave sleep is the way we “recover” from our daily learning, and hence would increase in proportion to how long we stay awake.  Which of the following would BEST supports the Synaptic Homeostasis Hypothesis?

A) The finding that the need for faster wave sleep decreases after a non-stressful day.
B) The finding that the capacity to drive a car is impaired as sleep decreases.
C) the finding the time spent in slow wave sleep decreases after a stressful day.
D) the finding that the time spent in slow wave sleep increases after a stressful day.[/vc_column_text][vc_text_separator title=”Day 4 Answer Explanation”][/vc_column][/vc_row][vc_row][vc_column][vc_column_text]Since the hypothesis makes a prediction that slow wave sleep would increase due to some factor, we should look for evidence that shows that some factor is correlated with an increase in slow wave sleep.

(A), (B), and (C) all do not support the hypothesis because they don’t show a positive correlation between some factor and an increase in slow wave sleep.

The correct answer is (D).  This is because an increase in stress is correlated with an increase in slow wave sleep.  Since the paragraph states that slow wave sleep is one way we recover, we can reasonably infer that stress creates more demand for recovery, which would increase the demand for slow wave sleep and support the hypothesis.[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_text_separator title=”Key Fact To Learn”][/vc_column][/vc_row][vc_row][vc_column][vc_column_text]Never put a comma between two verbs.

I ran and sat.  I ate and flew.  I sang and danced.[/vc_column_text][/vc_column][/vc_row]