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REBORN

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Psych U4 Q's Thread!
« on: June 18, 2011, 05:04:02 pm »
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This Unit looks like a combo of extremely boring (defining normality/mental health + historical/etc approaches) and extremely fascinating information (GAS/stress/phobias/major depression).

LET THE Q's BEGIN :) :)

Q: What's the difference between a synaptic button and synaptic vesicle? Does a synaptic button even exist (google says no?).

Check the green box on p430 to see what I'm referring to (fig 9.9)
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Russ

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Re: Psych U4 Q's Thread!
« Reply #1 on: June 18, 2011, 05:24:44 pm »
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The textbook has a typo, it should be bouton

wiki

Quote
The presynaptic terminal, or synaptic bouton, is a specialized area within the axon of the presynaptic cell that contains neurotransmitters enclosed in small membrane-bound spheres called synaptic vesicles.

Also, sticky

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Re: Psych U4 Q's Thread!
« Reply #2 on: June 18, 2011, 05:28:35 pm »
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Wow 3 typos. Poor. Thanks Russ.
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MeLucky

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Re: Psych U4 Q's Thread!
« Reply #3 on: June 19, 2011, 01:44:50 am »
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Is learning a hypothetical construct as it is a concept that is believed to exist but cannot be measured or observed directly?

Someone have an actual definition for what synapse formation is?
I just sorta wrote outta the Grivas book "refers to the strengthening of synapse connections between neurons and the creation of new synapses as a result of learning."
Bleh.

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Re: Psych U4 Q's Thread!
« Reply #4 on: June 19, 2011, 01:48:33 am »
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EDIT: just realised the question was already answered
« Last Edit: June 19, 2011, 02:56:04 pm by MeLucky »
Bleh.

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Re: Psych U4 Q's Thread!
« Reply #5 on: June 19, 2011, 03:47:57 am »
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Is learning a hypothetical construct as it is a concept that is believed to exist but cannot be measured or observed directly?

Someone have an actual definition for what synapse formation is?
I just sorta wrote outta the Grivas book "refers to the strengthening of synapse connections between neurons and the creation of new synapses as a result of learning."

synapse formation - creation of connections between two or more neurons.
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Re: Psych U4 Q's Thread!
« Reply #6 on: June 22, 2011, 05:51:57 pm »
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Just trying to wrap my head around the differences between classical conditioning and operant conditioning. So classical is learning by association, (e.g Pavlov.) and operant is learning through reward or punishment? (e.g Skinner).
‎"We divert our attention from disease and death as much as we can; and the slaughter-houses and indecencies without end on which our life is founded are huddled out of sight and never mentioned, so that the world we recognize officially in literature and in society is a poetic fiction far handsomer and cleaner and better than the world that really is."
- William James.

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Re: Psych U4 Q's Thread!
« Reply #7 on: June 22, 2011, 06:12:16 pm »
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And is writing a behaviour due to maturation (growth and development) such as talking or walking?
‎"We divert our attention from disease and death as much as we can; and the slaughter-houses and indecencies without end on which our life is founded are huddled out of sight and never mentioned, so that the world we recognize officially in literature and in society is a poetic fiction far handsomer and cleaner and better than the world that really is."
- William James.

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Re: Psych U4 Q's Thread!
« Reply #8 on: June 22, 2011, 06:20:44 pm »
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Just trying to wrap my head around the differences between classical conditioning and operant conditioning. So classical is learning by association, (e.g Pavlov.) and operant is learning through reward or punishment? (e.g Skinner).

Classical is learning by associating a stimulus that produces no effect with one that does, so that stimulus produces that effect.Pavolov's dogs, ringing a bell right before giving them food, so they learned that when the bell is rung, food will be presented causing salvation even when the food wasn't presented.
Operant- yep using reward and punishment to increase or decrease behaviours..

And is writing a behaviour due to maturation (growth and development) such as talking or walking?

You need to have matured a certain level to be able to hold the pen and move it precisely and cannot be done until a certain age, whereas learning to write requires language skills that are learned/taught - why in schools you rehearse certain letters over and over again, and then putting them together, etc.
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Re: Psych U4 Q's Thread!
« Reply #9 on: June 23, 2011, 04:41:35 pm »
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Referring to snNake's questions in inbox.

Neural base of Learning.

-I don't exactly get what you meant by this so I put down areas of the brain involved in learning.

Many areas of the brain are involved in learning and interact during the process of learning.
E.g.
-Visual received by visual cortex and relayed by other parts of the brain for further processing such as the temporal lobe.
-Temporal lobe and hippocampus involved in spatial learning and CC responses.
-Cerebellum relates to the learning of motor skills.
-Amygdala is involved in fear conditioning.
-Observational learning involeds mirror neurons in the frontal and temporal lobes.

Neural pathways are interconnected groups of neurons that act like a network during the learning process. Interconnected groups of neurons form neural pathways which contain the memory of that information.

What happens to the neurons?

When learning occurs, a change occurs in the synapse (communication point) of the neuron and involves the establishment and strengthening of the neural connections at the synapse. Physical changes can be seen during learning.

Where does Hebb fit into it?

Sorry, still havn't fully understood this.

Where does Long-Term Potentiation fit into it?

LTP is the long lasting strengthing of the synaptic connections which results in enhanced functioning when a neural pathway is activated.
‎"We divert our attention from disease and death as much as we can; and the slaughter-houses and indecencies without end on which our life is founded are huddled out of sight and never mentioned, so that the world we recognize officially in literature and in society is a poetic fiction far handsomer and cleaner and better than the world that really is."
- William James.

MeLucky

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Re: Psych U4 Q's Thread!
« Reply #10 on: June 23, 2011, 06:02:14 pm »
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Areas of the brain involved in learning-do we need to know much about this? it's on the key knowledge but the Grivas book doesn't have much about brain areas/structures involved in learning whereas the Oxford and Nelson include it.
Bleh.

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Re: Psych U4 Q's Thread!
« Reply #11 on: June 23, 2011, 06:10:57 pm »
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I'm doing psychology in university so I'm learning it, but its your choice. I just find it easier to learn everything I can just in case of short answer questions, so I can build a strong answer.
‎"We divert our attention from disease and death as much as we can; and the slaughter-houses and indecencies without end on which our life is founded are huddled out of sight and never mentioned, so that the world we recognize officially in literature and in society is a poetic fiction far handsomer and cleaner and better than the world that really is."
- William James.

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Re: Psych U4 Q's Thread!
« Reply #12 on: June 23, 2011, 10:35:26 pm »
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What is the role of the synapse in communication between neurons? Like why aren't all neurons joined - why the gap? Purpose?
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Re: Psych U4 Q's Thread!
« Reply #13 on: June 24, 2011, 09:11:26 am »
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We evolved that way because it has a few benefits, but we could just have easily ended up with some other organisation

eg: the gaps produce clearly delineated pre/post synaptic membranes
they impose a rate limiting step on neural signalling
it allows multiple neurons to converge on one post synaptic membrane

etc

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Re: Psych U4 Q's Thread!
« Reply #14 on: June 24, 2011, 10:47:28 am »
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Ty.

Q: Explain why the brain is considered to have plasticity with reference to 2 key points?

I have 1? ---> to 'learn'
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