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March 29, 2024, 10:02:01 am

Author Topic: VCE Psychology Question Thread!  (Read 469842 times)  Share 

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trying.to.get.a.good.atar

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Re: VCE Psychology Question Thread!
« Reply #1815 on: December 15, 2021, 08:28:20 pm »
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Hey guys! Does anyone know the answer to this:

What are two key findings about brain function from the split-brain experiments?

Many thanks,

In his split-brain experiments Sperry found:
1. That both hemispheres of the brain have specialised functions
2. The corpus callosum has an essential role in enabling exchange of information between the hemispheres

 :)




hairyplatypus

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Re: VCE Psychology Question Thread!
« Reply #1816 on: December 19, 2021, 11:46:18 pm »
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hi guys! When spinal reflex occurs, how does the body recognise if the stimuli is a threat? thanks in advance! :D

Billuminati

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Re: VCE Psychology Question Thread!
« Reply #1817 on: December 20, 2021, 12:59:05 am »
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hi guys! When spinal reflex occurs, how does the body recognise if the stimuli is a threat? thanks in advance! :D

Didn’t do VCE psych but in uni neurobio/anatomy, we learn that nociceptors are specialised neurons that detect potentially harmful stimuli, so whenever they’re activated, the body automatically assumes that the stimulus is bad
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hairyplatypus

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Re: VCE Psychology Question Thread!
« Reply #1818 on: December 20, 2021, 12:55:52 pm »
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Didn’t do VCE psych but in uni neurobio/anatomy, we learn that nociceptors are specialised neurons that detect potentially harmful stimuli, so whenever they’re activated, the body automatically assumes that the stimulus is bad

thanks so much!!

yr12_vcestudent

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Re: VCE Psychology Question Thread!
« Reply #1819 on: January 30, 2022, 12:45:07 am »
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HEY GUYS!
can someone explain to me how standardised procedures help to eliminate extraneous variables pls  :)

THANKKKS

Golgi Apparatus

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Re: VCE Psychology Question Thread!
« Reply #1820 on: January 30, 2022, 07:55:08 am »
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can someone explain to me how standardised procedures help to eliminate extraneous variables pls  :)

Standardised procedures basically involves treating every participant the same, regardless of whether they are in the control or experimental group. If each group is treated differently, there are two differences between the groups - the independent variable and the treatment of participants. Therefore, you don’t know if the results are due to the manipulation of the IV, or because of the different ways the groups were treated.

For example, someone is testing the effects of a breathing technique on the stress response when doing a test. The experimental group learns the breathing technique and the control group doesn’t, then both groups complete a test while their heart rate is measured to indicate their stress levels. However, the experimental group has a friendly instructor during the test, while the control group has a stern instructor. The experimental group shows lower average heart rate during the test. But is this because of the breathing technique, or is it because they had a nicer instructor who made them feel more relaxed? We don’t know - therefore the lack of standardised procedures means that the difference in instructors may be acting as a confounding variable. Standardised procedures in this case would mean having the same instructor for each group. This means the instructor has the same effect on the stress levels of each group and does not affect the results. Because the instructor is the same for each group, we know that differences in instructors cannot be causing the difference in results, so this is eliminated as an extraneous variable.
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yr12_vcestudent

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Re: VCE Psychology Question Thread!
« Reply #1821 on: February 27, 2022, 10:59:04 am »
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Hi there!
i was wondering what is an example of spinal reflex.
Thanks for the help :)

strawberries101

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Re: VCE Psychology Question Thread!
« Reply #1822 on: February 27, 2022, 01:35:03 pm »
+1
Hi there!
i was wondering what is an example of spinal reflex.
Thanks for the help :)

Hey!
An example of spinal reflex would be your hand touching a hot plate and immediately withdrawing it involuntarily because spinal reflexes are involuntary movements. Same with closing your eyes suddenly when something comes towards your eye.

yr12_vcestudent

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Re: VCE Psychology Question Thread!
« Reply #1823 on: February 27, 2022, 08:43:07 pm »
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Hi everyone :)
I have my psychology sac soon and i was wondering if anyone can please explain this key skills: use the lock and key process to explain the excitatory and inhibitory effects that glutamate and GABA have on the nervous system.

Thanks sm!

bw304

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Re: VCE Psychology Question Thread!
« Reply #1824 on: February 27, 2022, 10:13:08 pm »
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Hi everyone :)
I have my psychology sac soon and i was wondering if anyone can please explain this key skills: use the lock and key process to explain the excitatory and inhibitory effects that glutamate and GABA have on the nervous system.

Thanks sm!

i did psych last year so i'll give this a go! basically, the lock and key model is an analogy used to describe neural transmission, and the process can be described as this:

In neural transmission, vesicles in the axon terminals of the pre-synaptic neuron release neurotransmitters into the synaptic gap/cleft. These neurotransmitters act as 'keys' which can only bind to specifically shaped, complementary receptors on the dendrites of the post-synaptic neuron, also known as 'locks.'

now regarding GABA and glutamate:

When the neurotransmitter glutamate binds to these receptors or 'locks', it has an excitatory effect, causing the post-synaptic to fire, thus stimulating a neural response. Conversely, when the neurotransmitter GABA binds to the receptors, it has an inhibitory effect, preventing the post-synpatic neuron from firing and thus inhibiting a neural response.

hopefully this helps!!
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Golgi Apparatus

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Re: VCE Psychology Question Thread!
« Reply #1825 on: February 28, 2022, 06:47:53 pm »
+2
i did psych last year so i'll give this a go! basically, the lock and key model is an analogy used to describe neural transmission, and the process can be described as this:

In neural transmission, vesicles in the axon terminals of the pre-synaptic neuron release neurotransmitters into the synaptic gap/cleft. These neurotransmitters act as 'keys' which can only bind to specifically shaped, complementary receptors on the dendrites of the post-synaptic neuron, also known as 'locks.'

now regarding GABA and glutamate:

When the neurotransmitter glutamate binds to these receptors or 'locks', it has an excitatory effect, causing the post-synaptic to fire, thus stimulating a neural response. Conversely, when the neurotransmitter GABA binds to the receptors, it has an inhibitory effect, preventing the post-synpatic neuron from firing and thus inhibiting a neural response.

hopefully this helps!!

Great response bw! My teacher told us to say that glutamate makes the postsynaptic neuron more likely to fire instead of causing it to fire, and GABA makes it less likely to fire instead of preventing it from firing. I’m not sure if it matters, but VCAA can be a bit pedantic with things like this.
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hairyplatypus

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Re: VCE Psychology Question Thread!
« Reply #1826 on: March 09, 2022, 06:38:56 pm »
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hi all! would war be considered a major stressor or a catastrophe? thanks :D

SnekiSnek

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Re: VCE Psychology Question Thread!
« Reply #1827 on: March 10, 2022, 11:29:32 am »
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hi all! would war be considered a major stressor or a catastrophe? thanks :D

Hi! I would say it would be considered a catastrophe due to the fact that it affects a large community of people
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JAS0010

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Re: VCE Psychology Question Thread!
« Reply #1828 on: April 24, 2022, 10:13:49 pm »
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Hi!! I was wondering if someone could give me some feedback for my extended response :)) I just want to know what I did well on, areas I need to improve in, if the wording of my sentences is weird and also it would be really appreciated if you could give me a mark out of 10

thank you so much!!
 
Scenario:

Gita is a 22-year-old student in her final year of university. Gita arrived in Australia when she was 12 years old.She is from a non-english-speaking background and is the first female in her family to attend the university. She has generally been able to manage her parents’ expectations,academic demands,part-time work and the usual daily irritations that have come her way.

 When Gita lost her part-time job at the beginning of Semester 1, she experienced initial shock but quickly tackled this problem by drawing on her family and friendship network, which helped her find a new part-time job. However, at the end of semester 1, her first relationship break-up proved more challenging because she found her usual supports were not enough. She used meditation and dancing classes to help her refocus. Gita developed a cold after the break-up but still managed to stay on top of things.

 However, there was one point at the beginning of semester 2 when Gita did struggle. The news that her car needed expensive repairs was a major setback that she had not budgeted for. She felt exhausted and overwhelmed by the situation but decided to keep the problem to herself, feeling that she should be able to manage it on her own.

Towards the end of semester 2, Gita developed insomnia and headaches, and finally visited her family doctor. The doctor explained that these symptoms were stress-related and referred her to a psychologist. The psychologist was able to help Gita view her situation differently and assist her with realising that it was a temporary problem that would be resolved once she finished university and started full-time work. Gita would then be able to apply for a bank loan to fix her car.


With reference to Gita’s situation, write a detailed analysis of her sources of stress, biological responses and psychological responses. In your response, discuss the theories and models of stress and/or coping that are relevant to this scenario.

My Response

Gita experiences stress on a daily basis. As she arrived in Australia at 12 and also comes from a non-English speaking background she may experience acculturative stress. Alongside this her parents' expectations may act as daily pressures to Gita.

From a biological perspective, when Gita lost her job she experienced the shock stage of the Alarm Shock phase of the General Adaptation Syndrome Model (GAS) causing increased heart rate and blood rate due to the release of adrenaline from the amygdala, known as the SAM pathway, however was able to cope with the stress leading to countershock, using coping methods such as her support systems of family and friends. However, when Gita experienced her breakup, this proved more challenging and she was able to both exercise her coping flexibility and context-specific effectiveness by adapting her coping methods to dancing and meditation to better cope with the stress she was experiencing and additionally use approach strategies like meditation and dancing lessons to specifically target the stress she is feeling . When Gita develops a cold it shows her immune system is decreasing in health due to the release of cortisol, a neurohormone that weakens the immune system, which may be a sign that she is in the Resistance stage of the GAS model. By the point of her car needing repairs Gita is experiencing more major health problems such as insomnia and headaches due to the ongoing release of cortisol has depleted her immune system and is vulnerable to sickness support the idea that Gita being in the final stage of Exhaustion.

Psychologically, in terms of the Lazarus and Folkman Transactional Model of Stress when Gita lost her job, her primary appraisal of the situation is of threat but then a challenge and potentially a form of eustress as this may be an opportunity to find a better job. Her secondary appraisal is that she has the adequate resources to cope.  The primary appraisal of Gitas second source of stress of the breakup was also a loss but as she was able to exercise her coping flexibility she was able to realise she has the adequate coping strategies to cope with her life event stressor, but she did need to adapt her strategies. Her final stress of her car breaking down was appraised as a harm due to the financial struggles Gita was experiencing, and by keeping the problem to herself which is an example of an avoidance strategy her stress worsened as she didn't have the adequate resources to cope. When she finally inquired with her doctor and psychologist, another example of Gitas coping flexibility, as she is now seeking to adapt her current coping methods with her stressors after realising that they are ineffective, allow her to see her stress in a more positive light as she now sees this stressor as temporary and rather than a threat, a challenge for the future.

HappyMe

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Re: VCE Psychology Question Thread!
« Reply #1829 on: May 25, 2022, 05:32:34 pm »
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Hi everyone. I have a Practical SAC upcoming and I had a question regarding it. The prac is on which retrieval method is better: free recall or recognition. The experiment found recognition to be more effective in retrieving memory but was the memory extracted from the Long term memory or was it a sensory memory that stayed in the short term memory and never got encoded to go to LTM. I'm not sure how to look at it as in it the experiment, the participants were only given 1-2 minutes to encode the information, which shouldn't be enough time for the memory to be formed as a LTM.
It would help heaps if anyone could answer this. Thanks!
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