Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
4 Phases of male sexual behavior
|
Phase 1: appetite
Phase 2: consummatory reaction Phase 3: Aversion Phase 4: Freedom from stimulus |
It is also calles the model of instrinctive behavior in males.
|
|
|
Hormone which affects the sex drive in males
|
Testosterone.
|
this hormone starts secreting in high doses during puberty.
|
|
|
hormone which STIMULATES the sexual behavior in males
|
Estrogen
|
motivation part
|
|
|
Hormone involved in the penile performance part in males.
|
DHT (dihydrotestosterone)
|
|
|
|
Part of the brain in males responsible for brain circuitry mediating the rewarding properties
|
MPOA (medial preoptic area)
|
|
|
|
What stimulates the VTA which in turn stimulates the reward and motivation system in males?
|
MPOA. stimulates MPOA>>stimulates VTA>>stimulates reward and motivation system.
|
|
|
|
What does ablation and replacement in behavioral endocrinology do?
|
Ablation: e.g castration of rats reduces activity to sex stimuli.
Replacement: implanting testosterone restores sex behavior in castrated rats. |
|
|
|
What hormone in males aside from testosterone can restore sexual behavior?
|
Estrogen
|
|
|
|
Why DHT does not work in restoring sex behavior of males?
|
This is because DHT does not convert to estrogen.
|
|
|
|
3 components of male rodent sexual behavior
|
Mounting, intromission, ejaculation. (page 211 in textbook).
|
|
|
|
What happens when there are lesions along the neural circuit that mediates olfactory information in male rodents?
|
Diminished sexual behavior can be observed.
|
MPOA will be affected.
|
|
|
Most humans mate in which position?
|
Face to face.
|
Very different from cats, dogs, rodents etc.
|
|
|
What hormone are hypogonadal men treated with for increase in sexual behaviors in humans?
|
ANDROGEN. usually long lasting, for a period of time.
|
|
|
|
What hormone must be converted to another hormone in order to have behavioral effect?
|
Testosterone MUST be converted to estrogen for behavioral effect to occur.
|
|
|
|
Males are ____________ (dependent OR independent) on estradiol receptors in the brain to display normal sexual behavior.
|
Answer: Dependent.
|
|
|
|
Some cattles have been genetically selected for homosexual behaviors.
|
True. There are indeed small percentage of cattles which are selectively homosexuals.
|
|
|
|
What false mounting does?
|
False mounting is an effective way to sexually stimulate the bull. Providing two false mounts with two minutes of active restraint and one additional false mount maximizes sperm cell numbers. Thus, it increases the no. of sperm in an ejaculation.
|
|
|
|
___________ (hormone) is primary involved in the movement of sperm from the cauda epididymis to the colliculus seminalis in the emission process?
|
Oxytocin.
|
|
|
|
What is post-ejaculatory interval?
|
The time between an ejaculation and the onset of the next copulatory series. (page 213 in textbook).
|
|
|
|
What are the 4 basic behaviors that occurs in mating bout?
|
copulatory lock, thrusting, multiple intromissions, and multiple ejaculations. Page 213 in textbook, figure 5.11.
|
|
|
|
Castration and sexual responsiveness in males.
|
Castration leads to reduction in sexual responsiveness. Both motivation and performance.
|
|
|
|
What treatment can reverse the effects of castrated male rodents with regards to their reproductive behavior?
|
Testosterone treatment. page 215 in textbook, figure 5.13.
|
|
|
|
Normal penile reflexes are maintained or restored by ______________.
|
Testosterone. page 219 in textbook.
|
|
|
|
What do male rats usually do after ejaculation?
|
"sing", a special ultrasonic detector is required to hear these vocalizations. (page 213 in textbook).
|
|
|
|
Role of amydala.
|
Located in each temporal lobe of the brain, which is critical for the integration of sensory information important in sexual behavior. (page 224 in textbook).
|
|
|
|
Effects on endorphins in copulation and penile erection?
|
activity decreases copulation, and decreases erection. (page 231 in textbook)
|
|
|
|
Effects on oxytocin in copulation and penile erection?
|
increases copulation and increases spontaneous erection. (page 231 in textbook)
|
|
|
|
Human copulation is not contrained to stereotyped positions. True or false?
|
True. page 247 in textbook, figure 5.29.
|
|
|
|
Androgens are converted to estrogen in ________ to mediate copulatory behavior.
|
POM. preoptic medial nucleus.page 272 in textbook.
|
|
|
|
Androgens are converted to ____________ in other regions to mediate vocalizations.
|
DHT.
|
|
