2011 VN'ers Psychology U3 Questions Thread

[iNerd]

^

No physiology.

In a nutshell this is it:


1.Change in neuronal function – an increase in the amount of neurotransmitter produced and released by the neurons.

2.Change in neuronal structure – number of axons/dendrites (‘branches’) increases as they become ‘bushier’ through the growth of smaller ‘offshoots’ (called dendritic spines), thereby strengthening the connections between neurons.

3.New synaptic connections form (synaptic growth) and this has the effect of further strengthening the connections between the neurons, making it easier for them to transmit to each other the next time.


Collectively called LTP.

[Glockmeister]

Agreed, but I think if it was on a real VCAA exam both marks should be awarded^

When talking about long-term potentiation must I include that neurons 'fire together'?
I just included the three main physical changes in the neurons e.g bushier dendritic spines, etc

Also when explaining the role of the temporal lobe.. does it have it's 'own' specific role? Or can it only be explained as working in conjunction with the hippo and amygdala?

You probably should mention that neuron's 'fire together, wire together', because that's the sort of basic mechanism of how LTP works. Now, as I said to ATAR, I have no idea how deep you guys will go with the neurobiology of LTPs, so I don't know how deep an answer VCAA would want.

To the second question. You should always mention temporal lobe has having a distinct function. If you ever do look at the brain, you'd find that they are distinct areas of the brain, both in anatomical and evolutionary terms. You should mention that they are connected together, but that they do have distinct functions e.g. temporal lobe - declarative memory. hippocampus - consolidation.

 

[Glockmeister]

After a stroke that damaged the right parietal lobe of her brain, a 77 year old, ET, was diagnosed with spatial neglect. In order to understand more about the role of the brain in cognitive processes, ET was asked to participate in research which involved the researchers giving her a series of tasks. The findings of the research using ET were presented at a conference on the effects of brain damage.

Q: Describe one task involving cognitive processes that ET is unlikely to be able to do

Q: Identify the limitations of attempting to generalise any conclusions from this research.

First question: http://www.youtube.com/watch?v=ADchGO-0kGo (just follow any test they have there)

Second question:
- Too Little participants, cant generalise
- Unique circumstances, may be not applicable to other people.

etc etc.

[iNerd]

So something like can't draw a full picture - only the right side?

[Glockmeister]

So something like can't draw a full picture - only the right side?

yeah it depends on which hemisphere was damaged, so left hemisphere parietal damage means neglect on the right hand side and vice versa.

[iNerd]

Could someone provide me with 5 distortions in cognition and perception in an ASC?

I have:

1. Senses heightened (percep)
2. Hallucinations (percep)

3 more?

I have:

1. Distortions of memory (cog)
2. Difficulty paying attention (cog)

3 more?

--------------------------------------------------------------------------------------------

According to Baddeley and Hitch’s theory there are four components of working memory.

Q:  Name the two storage components of working memory

I thought it was 3? Phonological loop, visuo-spatial sketchpad and episodic buffer (episodic buffer holds 4 chunks of info)?

[kevvy]

Could someone provide me with 5 distortions in cognition and perception in an ASC?

I have:

1. Senses heightened (percep)
2. Hallucinations (percep)

3 more?

I have:

1. Distortions of memory (cog)
2. Difficulty paying attention (cog)

3 more?

distortion of time orientation i think?

[iNerd]

Hmm I don't think so because that's given its own separate category in the book :/

[Darren]

According to Baddeley and Hitch’s theory there are four components of working memory.

Q:  Name the two storage components of working memory

I thought it was 3? Phonological loop, visuo-spatial sketchpad and episodic buffer (episodic buffer holds 4 chunks of info)?

Wrong, there are 4 components.
The two STORAGE units are the visuo-spatial sketchpad (manipulating visual information) & the phonological loop (stores auditory for 2 seconds).

*also the other 2 = episodic buffer & central executive.

[iNerd]

According to Baddeley and Hitch’s theory there are four components of working memory.

Q:  Name the two storage components of working memory

I thought it was 3? Phonological loop, visuo-spatial sketchpad and episodic buffer (episodic buffer holds 4 chunks of info)?

Wrong, there are 4 components.
The two STORAGE units are the visuo-spatial sketchpad (manipulating visual information) & the phonological loop (stores auditory for 2 seconds).

*also the other 2 = episodic buffer & central executive.

Episodic holds/stores 4 chunks of information - explain how that is not storing?

[Darren]

[The episodic buffer is dedicated to linking information across all domains to form integrated representations of visual, spatial, verbal information with chronological time sequencing (such as a movie scene or memory from a story).]
4 chunks of information.. what do you mean?
Doesn't store, links information. That's the basic definition you'll need. The two other stores are visual and auditory..

[iNerd]

[The episodic buffer is dedicated to linking information across all domains to form integrated representations of visual, spatial, verbal information with chronological time sequencing (such as a movie scene or memory from a story).]
4 chunks of information.. what do you mean?
Doesn't store, links information. That's the basic definition you'll need. The two other stores are visual and auditory..

Grivas says it holds 4 chunks of info :/

Get your book out and turn to that double-page on working memory and you'll find it.

[Darren]

All I see is the same thing I said, just more elaborated upon.

Since it doesn't go further directly about the "four chunks of information" which you're confused about, I assume four chunks means just four items to be worked on across all domains. Directly after it says this:
"It is capable of holding information in any form and can therefore combine auditory from the phonological loop and visual-spatial from the sketchpad, it can also connect from LTM."
Which was my basic definition.

[iNerd]

All I see is the same thing I said, just more elaborated upon.

Since it doesn't go further directly about the "four chunks of information" which you're confused about, I assume four chunks means just four items to be worked on across all domains. Directly after it says this:
"It is capable of holding information in any form and can therefore combine auditory from the phonological loop and visual-spatial from the sketchpad, it can also connect from LTM."
Which was my basic definition.

I'm confused.

"it is capable of holding information"

So it just holds it? it doesn't store?

[Darren]

Processes info across domains+LTM into time-sequenced episodes, the traditional storage components = visuo and phono