why is the learner considered passive in classical conditioning?
VCE Psychology Question Thread
girlmeetsvce the learner isn't trying to change their behaviour- it 'subconsciously' occurs. for example, when the dog hears the bell and expects food + starts salivating, the dog cannot control its salvation.
a month later
whats the difference between decay and displacement?
marine my teacher said we don't need to know it for this year
girlmeetsvce yeah technically isn’t in the study design. doesn’t hurt to know though so you don’t confuse the terms.
a month later
why does an EEG show higher frequency in REM than NREM but lower amplitude in REM than NREM
4 days later
girlmeetsvce
From the time you enter sleep to the time you enter deepest NREM-3 sleep the amplitude of waves increases continuously while frequency of EEG reading diminishes correspondingly.
Remember frequency represents how many waves there are per second , and amplitude is a measure of the degree of synchronized brain activity (neurons are acting in concert)
7 days later
can sample size be commented on if the total population is not given
what's the difference between sleep onset and latency?
can sample size be commented on if the total population is not given
Yes, if a sample size is small then that can mean the experiment is not externally valid (difficult to generalize results)
what's the difference between sleep onset and latency?
Sleep latency is how long it takes you to fall asleep, sleep onset is when you initiate a period of sleep.
Thank you
hihi. does anyone have an easy(ish) way of remembering the function of each part of the nervous system?
im always confusing the brain and spinal cord functions, and it doesn’t matter how much i read the textbook/ watch edrolo i don’t get it 
I like to think of it like this:
Brain - receives info, coordinates a response to it.
Spinal cord - sends info to the brain and carries instructions from the brain.
Autonomic - managing all involuntary movement through MOG (muscles organs glands).
Somatic - voluntary movement.
Sympathetic - arousing
Parasympathetic - cooling down
E.g. I'm playing basketball. When I see a teammate looking to pass the ball, sensory info (where the ball is and how it looks) is detected by the somatic nervous system --> spinal cord relays msg to the brain --> the brain decides to change hand position to receive the catch --> sends instructions down the spinal cord to skeletal muscles in the somatic nervous system.
During the game, the sympathetic nervous system would be dominant to energise my body. After the game, it is likely to be parasympathetic, as that would help restore the body to normal levels of functioning.
also if someone could explain brain waves, amplitude frequency + what is total vs partial sleep deprivation I'd be so grateful!
- Edited
girlmeetsvce omg thank you so much!! clarifies so much for me
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girlmeetsvce also if someone could explain brain waves, amplitude frequency + what is total vs partial sleep deprivation I'd be so grateful!
sorry, i can’t explain total vs partial sleep deprivation— haven’t covered that yet. BUT i can explain the brain wave stuff
brain waves = measured in an EEG which detects, amplifies and records the electrical activity of the brain
- frequency = rate — the number of brain waves that occur per second
- amplitude = height — intensity and height of the brain waves
on an EEG…
- high frequency = waves close to each other ( imagine like: | | | | | )
- low frequency = waves further apart ( imagine like: | | | | | | )
- high amplitude = wave lengths are higher/further apart ( imagine like: /\/\/\/\/\ )
- low amplitude = wave lengths are lower/closer ( imagine like: -__-— )
an EEG is likely to show (copied from edrolo textbook)
- higher frequency and lower amplitude in REM sleep.
- high frequency and low amplitude in NREM sleep stage 1 (transitioning from wakefulness to sleep), but lower frequency and higher amplitude than normal-waking consciousness.
- medium frequency and medium amplitude in NREM sleep stage 2 (light sleep).
- lower frequency and higher amplitude in NREM sleep stage 3 (deep sleep)
4 types of brain waves:
- beta = high frequency and low amplitude
- alpha = high frequency (but lower than beta) and low amplitude (but higher than beta)
- theta = medium frequency and medium/high amplitude
- delta = low frequency and high amplitude
No worries at all, thank you too!! This explanation gives so much clarity
a month later
when is it ok to say someones got partial sleep deprivation?
marine partial sleep deprivation is when there is sleep but of a lower quality/quantity. so for example: i got 5 hours of sleep last night and felt quite tired today, therefore i am partially sleep deprived because i had low quantity and probably quality of sleep.
side note (js so youre not confused): TOTAL sleep deprivation is when there is absolutely no sleep for 24 or more hours, so basically pulling an all nighter
