Final answer:
Loss of libido can result from damage to the limbic system structures such as the amygdala and nucleus accumbens. Damage to these areas can decrease the motivation to engage in sexual behavior.
Step-by-step explanation:
Loss of libido, or sexual drive, can result from damage to the limbic system structures such as the amygdala and nucleus accumbens. Animal research has shown that these areas are important for sexual motivation. Damage to these areas can lead to a decreased motivation to engage in sexual behavior, although the ability to do so remains intact. This has been observed in both male and female rats.