ATAR Notes: Forum

VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Psychology => Topic started by: kazzacae on June 04, 2010, 09:02:28 am

Title: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: kazzacae on June 04, 2010, 09:02:28 am
confused??? can we use the words brightness in out definitions for brightness constancy
e.g
brightness constancy refers to the tendency to perceive a stimulus as maintaining brightness despite changes in the brightness of the image projected on the retina??
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: lolbox on June 05, 2010, 04:52:23 pm
I don't see why not. I am using those words in my definitions. The notes I'm using to study has the same words in the definition.
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Spreadbury on June 05, 2010, 05:59:02 pm
I did the 2008 VCAA exam today and one of the questions asked to explain orientation constancy. in the examiner's report is specifically stated that "orientation" could not be used in the definition. their answer used "angle" or "position" instead.
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Boots on June 05, 2010, 10:02:00 pm
Heres a good question:

How can perception be both psychological and physiological?
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Glockmeister on June 05, 2010, 11:22:05 pm
Physiological - processing of visual information by various cortical processes.

Psychological - processing of that visual information to give meaning to that information.
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Boots on June 06, 2010, 12:05:11 pm
Excellent

The most important function of the corpus callosum is to
A. regulate control of heart rate and blood pressure.
B. regulate hormone production.
C. transfer sensory and motor information between the hemispheres.
D. transfer language information from Broca’s area to Wernicke’s area.

The answer is C but I thought the motor cortex does not use the corpus callosum, as said by Grivas(pg.91) and Glockmeister

WTFFFFFFF?
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Slumdawg on June 06, 2010, 12:32:56 pm
Excellent

The most important function of the corpus callosum is to
A. regulate control of heart rate and blood pressure.
B. regulate hormone production.
C. transfer sensory and motor information between the hemispheres.
D. transfer language information from Broca’s area to Wernicke’s area.

The answer is C but I thought the motor cortex does not use the corpus callosum, as said by Grivas(pg.91) and Glockmeister

WTFFFFFFF?

Sometimes there might be flaws in the answers but you can't keep looking for deeper meanings. It will cost you dearly in the exam. Just cancel out the distractors and you've got your answer. Options A,B and D are obviously wrong so just go with C. In Grivas it just talks about the motor cortex message not needing to use the corpus callosum for the left hand. Maybe for other motor functions it does. I wouldn't worry about this little technicality.
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: minilunchbox on June 06, 2010, 01:32:19 pm
Excellent

The most important function of the corpus callosum is to
A. regulate control of heart rate and blood pressure.
B. regulate hormone production.
C. transfer sensory and motor information between the hemispheres.
D. transfer language information from Broca’s area to Wernicke’s area.

The answer is C but I thought the motor cortex does not use the corpus callosum, as said by Grivas(pg.91) and Glockmeister

WTFFFFFFF?

The motor cortex doesn't use the corpus callosum when sending information to a body part (the left hand), but it would still need to use it to send motor information between hemispheres (left motor cortex -> right motor cortex) which is why N.G. is unable to say what she saw because the sensory/visual information couldn't cross hemispheres.
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Boots on June 06, 2010, 02:21:24 pm
Excellent

The most important function of the corpus callosum is to
A. regulate control of heart rate and blood pressure.
B. regulate hormone production.
C. transfer sensory and motor information between the hemispheres.
D. transfer language information from Broca’s area to Wernicke’s area.

The answer is C but I thought the motor cortex does not use the corpus callosum, as said by Grivas(pg.91) and Glockmeister

WTFFFFFFF?

Sometimes there might be flaws in the answers but you can't keep looking for deeper meanings. It will cost you dearly in the exam. Just cancel out the distractors and you've got your answer. Options A,B and D are obviously wrong so just go with C. In Grivas it just talks about the motor cortex message not needing to use the corpus callosum for the left hand. Maybe for other motor functions it does. I wouldn't worry about this little technicality.

Yeah I know, I got the right answer, but still its annoying
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Glockmeister on June 06, 2010, 02:24:47 pm
Excellent

The most important function of the corpus callosum is to
A. regulate control of heart rate and blood pressure.
B. regulate hormone production.
C. transfer sensory and motor information between the hemispheres.
D. transfer language information from Broca’s area to Wernicke’s area.

The answer is C but I thought the motor cortex does not use the corpus callosum, as said by Grivas(pg.91) and Glockmeister

WTFFFFFFF?

Sometimes there might be flaws in the answers but you can't keep looking for deeper meanings. It will cost you dearly in the exam. Just cancel out the distractors and you've got your answer. Options A,B and D are obviously wrong so just go with C. In Grivas it just talks about the motor cortex message not needing to use the corpus callosum for the left hand. Maybe for other motor functions it does. I wouldn't worry about this little technicality.

Yeah I know, I got the right answer, but still its annoying

It's a bad answer I know. Did that come out of a VCAA paper? If it didn't, then I wouldn't worry too much about it.
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: coolhat on June 06, 2010, 05:29:54 pm
guys-back to the point-does anyone actually know if can we use the words brightness, shape, size, orientation in our definitions of constancies? as in the vcaa 08 examiner's report it specifically stated that "orientation" could not be used in the definition. their answer used "angle" or "position" instead.
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Visionz on June 06, 2010, 05:43:31 pm
I lost a mark in my VP sac because I said orientation in the definition. I think I did read one assessor report that said dont mention the word in the definition.

To be safe just use a synonym.

Orientation - position
Shape - Form
Size - Dimensions
Brightness - level of light reflected
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: coolhat on June 06, 2010, 06:32:51 pm
thanks a lot!
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Boots on June 06, 2010, 07:09:58 pm
VCAA 05'
Studies of people who are suffering long-term stress indicate that they
A. show some ill-effects early on but recover quickly.
B. recover gradually from any ill-effects but do not have lasting effects of the stress.
C. are more likely to have ulcers than problems with high blood pressure.
D. are more likely to show poor health later in life.

How am I supposed to differentiate btw C and D? D is the answer, but how would I of known that?
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Visionz on June 06, 2010, 07:16:32 pm
VCAA 05'
Studies of people who are suffering long-term stress indicate that they
A. show some ill-effects early on but recover quickly.
B. recover gradually from any ill-effects but do not have lasting effects of the stress.
C. are more likely to have ulcers than problems with high blood pressure.
D. are more likely to show poor health later in life.

How am I supposed to differentiate btw C and D? D is the answer, but how would I of known that?

D - Because a cause-effect relationship between stress and those diseases has yet to be determined. Pretty straight forward.
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Boots on June 06, 2010, 07:19:44 pm
Could you elaborate young Visionz?
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Glockmeister on June 06, 2010, 07:24:37 pm
Because the discovery that C is incorrect was made by Australians?

Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Boots on June 06, 2010, 07:27:44 pm
Wah?
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Glockmeister on June 06, 2010, 07:35:39 pm
Wah?

Confused?

Two Australian Doctors, Drs Robin Warren and Barry Marshall were awarded the Nobel Prize for Medicine or Physiology for, "for their discovery of the bacterium Helicobacter pylori and its role in gastritis and peptic ulcer disease".

Have a read here: http://nobelprize.org/nobel_prizes/medicine/laureates/2005/warren.html and http://nobelprize.org/nobel_prizes/medicine/laureates/2005/marshall.html
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: kazzacae on June 06, 2010, 07:43:54 pm
Personally i think it is ridiculous if we can't. It would be different if we were defining brightness. but we are defining the psychological term 'brightness constancy,' it is stupid to use a synonym which means the same thing.
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Boots on June 06, 2010, 07:48:08 pm
Wah?

Confused?

Two Australian Doctors, Drs Robin Warren and Barry Marshall were awarded the Nobel Prize for Medicine or Physiology for, "for their discovery of the bacterium Helicobacter pylori and its role in gastritis and peptic ulcer disease".

Have a read here: http://nobelprize.org/nobel_prizes/medicine/laureates/2005/warren.html and http://nobelprize.org/nobel_prizes/medicine/laureates/2005/marshall.html

Could you tell me what they conlcuded?
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Glockmeister on June 06, 2010, 07:59:02 pm
Wah?

Confused?

Two Australian Doctors, Drs Robin Warren and Barry Marshall were awarded the Nobel Prize for Medicine or Physiology for, "for their discovery of the bacterium Helicobacter pylori and its role in gastritis and peptic ulcer disease".

Have a read here: http://nobelprize.org/nobel_prizes/medicine/laureates/2005/warren.html and http://nobelprize.org/nobel_prizes/medicine/laureates/2005/marshall.html

Could you tell me what they conlcuded?


Well, basically, they found that there was a bacterium in the intestine, H. pylori, which was causing these peptic ulcers, not hot foods or stress.
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: matt123 on June 06, 2010, 08:03:23 pm
yeah mate .. whilst you are correct and they did find out that its the bacterium not stress

dont ever forget .. stress does NOT cause disease .... it can be a contributing factor . but does not cause the disease ...

when we are stressed .. our bodies resistance to disease is increased ( since we release cortisol and our body is attempting to fight the stressor , the bodies focus on maintaining homeostasis is altered) ... B lymphocytes and T lymphocytes ( white blood cells) are produced to a lower extent.

what im trying to say is ... stress reduces our immunity to pathogens ( diseases) such as bacteria .. and hence .. this allows the bacterium to get past our defenses ( immune system) easier

note : . dont forget .. stress DOSN'T cause disease , its only a contributing factor
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Boots on June 06, 2010, 08:10:19 pm
Yeah thanks, but still how does knowing that help me answer this question. Because although D is correct, it says 'more likely'

VCAA 05'
Studies of people who are suffering long-term stress indicate that they
A. show some ill-effects early on but recover quickly.
B. recover gradually from any ill-effects but do not have lasting effects of the stress.
C. are more likely to have ulcers than problems with high blood pressure.
D. are more likely to show poor health later in life.
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: matt123 on June 06, 2010, 08:15:00 pm
ummmm ....yeah i can see how it might be D ... the question proves info that states " LONG TERM STRESS" ..
long term generally means its been going on for a while :P haha
so then the immune system is weakened for a while .. and they are more susceptible to disease ....

the thing is .. like you said . its 2005 exam ... that's the first year of this new course  , things were still being tested and learned ...
the examiners didnt know as much as they do know about this topic
so generally any questions this year will be short and direct and just allow us to apply knowledge

anyways g2g do chem paper :) goodluck
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Spreadbury on June 06, 2010, 08:28:19 pm
Yeah thanks, but still how does knowing that help me answer this question. Because although D is correct, it says 'more likely'

VCAA 05'
Studies of people who are suffering long-term stress indicate that they
A. show some ill-effects early on but recover quickly.
B. recover gradually from any ill-effects but do not have lasting effects of the stress.
C. are more likely to have ulcers than problems with high blood pressure.
D. are more likely to show poor health later in life.

essentially C and D are the same thing, but C seems too specific, stress is a subjective experience and we all cope differently with it. someone may go their whole life with high levels of stress and never have a stomach ulcer or heart attack. D seems to be an umbrella answer, and it seems more logical as the question doesn't state anything about heart conditions or...whatever causes stomach ulcers, just what the effects of long term stress are.
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: Boots on June 06, 2010, 09:00:35 pm
Yeah thanks, but still how does knowing that help me answer this question. Because although D is correct, it says 'more likely'

VCAA 05'
Studies of people who are suffering long-term stress indicate that they
A. show some ill-effects early on but recover quickly.
B. recover gradually from any ill-effects but do not have lasting effects of the stress.
C. are more likely to have ulcers than problems with high blood pressure.
D. are more likely to show poor health later in life.

essentially C and D are the same thing, but C seems too specific, stress is a subjective experience and we all cope differently with it. someone may go their whole life with high levels of stress and never have a stomach ulcer or heart attack. D seems to be an umbrella answer, and it seems more logical as the question doesn't state anything about heart conditions or...whatever causes stomach ulcers, just what the effects of long term stress are.

YES THATS THE ANSWER I WAS LOOKING FOR, STRESS IS SUBJECTIVE
SPREADBURY=LEGEND
Title: Re: Can we use Brightness,shape, size, orientation in our definitions of constancies
Post by: TrueLight on June 06, 2010, 11:59:42 pm
what im trying to say is ... stress reduces our immunity to pathogens ( diseases) such as bacteria .. and hence .. this allows the bacterium to get past our defenses ( immune system) easier

note : . dont forget .. stress DOESN'T cause disease , its only a contributing factor

well H.pylori is pretty resistant to immune attack even in people who are healthy and not stressed, it can live for ever in a person if they don't get treatment

but in general yeah... high levels of whats it called cortisol? suppresses the immune system