dead on time

Question 1

fischer 2005

Answer 1

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

Question 2

Carré et al 2016

Answer 2

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

Question 3

threshold of excitation

Answer 3

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

Question 4

action potential

Answer 4

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

Question 5

synapse//synapsic gap

Answer 5

a structure, which connects two neurones

Question 6

culter, friedmann and mccoy (1998)

Answer 6

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

Question 7

neurotransmitter

Answer 7

natural chemical produced by the body that transfer signals from one neurone to another

Question 8

agonist

Answer 8

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

Question 9

antagonists

Answer 9

a substance that binds a specific receptor in tye brain but does nit excite it, it blocks it, stops it from working, inhabitates

Question 10

axon

Answer 10

carries impulses

Question 11

neurone

Answer 11

nerve cell specialised to receive and conduct electrical impulses

Question 12

function of dopamine

Answer 12

reward, when we do something it creates this euphoric feeling (addictive), movement, action, motivation

Question 13

excess (too much) of dopamine

Answer 13

depression, schizophrenia, psychosis, delusion, high sex drive, low impulse control, agression, hallucination

Question 14

deficiency (too little) of dopamine

Answer 14

parkinsons disease, risk of developing addictions, lack of motivation, depression, low sex drive, concentration problems

Question 15

whats the relationship between the neurotransmitter and the synapse

Answer 15

neurones never touch each other so to get to the other neurone the neurotransmitter has to cross a small gap- a synapse

Question 16

what does excitatory neurotransmitter do

Answer 16

send signals that excite//stimulate the brain they fire off the messages

Question 17

inhibitory neurotransmitters

Answer 17

send signals that calm the brain they block the message from being sent forward