中樞神經系統、神經元、神經遞質與突觸傳遞：练习题

• a.

  Circadian rhythms occur once every 24 hours, whereas infradian rhythms take longer than 24 hours to complete one cycle.

• b.

  Circadian rhythms only refer to the sleep-wake cycle, while infradian rhythms only refer to seasonal changes.

• c.

  Circadian rhythms are controlled by external zeitgebers, while infradian rhythms are purely endogenous.

• d.

  Infradian rhythms occur multiple times within a 24-hour period, unlike circadian rhythms.

• a.High levels of cortisol in the pre-frontal cortex trigger the limbic system to produce physical violence.
• b.The limbic system acts as a rational processor that filters the aggressive instincts of the pre-frontal cortex.
• c.Aggression is caused exclusively by the over-activity of the pre-frontal cortex during social interactions.
• d.Aggression may occur if the pre-frontal cortex fails to inhibit the emotional impulses generated by the amygdala.

• a.

  fMRI provides a direct measure of neurotransmitter levels like serotonin, whereas PET only measures blood flow.

• b.

  fMRI is significantly cheaper to operate and requires less specialized training for data interpretation.

• c.

  fMRI has superior temporal and spatial resolution and does not require the injection of radioactive tracers.

• d.

  fMRI is less sensitive to movement, making it easier to scan participants while they are physically aggressive.

• a.

  It is the primary area for the production of testosterone, which directly triggers aggressive outbursts.

• b.

  It is responsible for the immediate 'fight or flight' response when a threat is detected in the environment.

• c.

  It serves as the master endogenous pacemaker, regulating the timing of aggressive behaviors throughout the day.

• d.

  It acts as an executive control center that regulates and inhibits impulsive behaviors originating from the limbic system.

• a.

  It is an infradian rhythm that regulates the menstrual cycle and seasonal affective disorder.

• b.

  It acts as a neurotransmitter that carries electrical impulses across the synaptic cleft to the limbic system.

• c.

  It serves as an external zeitgeber that helps reset the internal biological clock to a \( 24 \)-hour day.

• d.

  It is an internal pacemaker located within the pre-frontal cortex that triggers aggression.

先自己写一遍答案，再对照解题步骤。

先自己写一遍答案，再对照解题步骤。

先自己写一遍答案，再对照解题步骤。

先自己写一遍答案，再对照解题步骤。

先自己写一遍答案，再对照解题步骤。