dead on time Flashcards
fischer 2005
my experiment for dopaminie—proof that it plays a part in love
they gathered 17 particiants (10f 7m) avarage age:21 (the range was from 18-26) <btw> all of the participants were crazy in love (not with each other) for 7 month</btw>
they put them in mri scans and there were four stages in all that
1) 30 seconds looking at a loved ones photograph
2)40 seconds of a filler activity which was counting
3)30 seconds of looking at a random emotionally neutral acquaintance
4) 20 second counting back from a number (filler activity)
they repeated those stages four times so in the end the whole thing took 720 seconds
result: a specific pattern of activation in the brains (in places rich with dopamine and its production) of participants as they were looking at their loved ones
Carré et al 2016
my experiment for testosterone; to check whether it (on its own) results in agression
121 healthy male participants were randomly selected to one of two groups
1) men who released a testosterone injection
2) men who received a placebo
(neither knew which group was which)
then they underwent a decision-making game that would provoke aggression and all and it needed leadership blahblahblah
measures of personality with regard to dominance and impulsivity traits were assessed using questionaries
the researchers found that an increase in testosterone alone is not enough to create aggression
only the men who released the dose AND had scored high in dominance and low in impulse control exhibited higher aggression than the control group and the rest of the testosterone group acted fine
threshold of excitation
basically neurones receive excitations from other neurones and if this excitation exceeds its threshold the neurone generates a brief pulse called action potential that travels through the axon to other neurones passing the excitation further
action potential
a brief pulse fired by the neurone, travels along the axon too other neurons ppassing the excitation further
note to self: the action potential is all or none, it either fires or not
synapse//synapsic gap
a structure, which connects two neurones
culter, friedmann and mccoy (1998)
my experiment on pheromones
investigation whether synthesised male pheromones increase sociosexual behaviour of men
participants (38m) were recruited through local press to analyse whether adding pheromones to their perfume will increase romance in their lives
criteria were: male, heterosexual, 25-42, healthy, not on medication, average appearance, shaving regularly, adequate social skills with women
(they had to fill in questionaries)
they divided participants into two random groups (in a double blind manner)
each participant brought his aftershave lotion (examined) they were to shave at least 3 times a week
they were also given a behavioural calendar and were supposed to mark how often these happened
1. affection petting kissing
2. sleeping next to a love interest
3.sex
4.informal dates
5.formal dates
6.mastrurbation
after two weeks they checked the results and later added pheromone or placebo to the aftershave
they went to use their aftershave and went for a 6 months trial
results showed that there were more men in the pheromone group (compared to the placebo group) who had an increase in the first
masturbation and formal dates remained the same
RESULTS: there is an increase in the sociosexual behaviour in which the willingness of a female partner plays a major role therefore pheromone increases the attractiveness of men to women without increasing the mens libido
neurotransmitter
natural chemical produced by the body that transfer signals from one neurone to another
agonist
substances that mimics the action of a neurotransmitter or hormones to produce a response when it binds a specific receptor enhances the work of neurotransmitters its
antagonists
a substance that binds a specific receptor in tye brain but does nit excite it, it blocks it, stops it from working, inhabitates
axon
carries impulses
neurone
nerve cell specialised to receive and conduct electrical impulses
function of dopamine
reward, when we do something it creates this euphoric feeling (addictive), movement, action, motivation
excess (too much) of dopamine
depression, schizophrenia, psychosis, delusion, high sex drive, low impulse control, agression, hallucination
deficiency (too little) of dopamine
parkinsons disease, risk of developing addictions, lack of motivation, depression, low sex drive, concentration problems
whats the relationship between the neurotransmitter and the synapse
neurones never touch each other so to get to the other neurone the neurotransmitter has to cross a small gap- a synapse
