Methods for Psychology and Neurons and APs Flashcards

1
Q

What is research and conformation bias?

A

People often seek out information that confirms their belief.

Expect favoured events minimise expected events.

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2
Q

What benefits do research methodologies have?

A

More structure and control the more confident we can be about causal relationships.

Can use heaps of methods to make sure.

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3
Q

What is introspection? Why is it bad?

A

Looking inward at yourself.

Same person can interpret same experience differently but this is still commonly used.

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4
Q

What is Naturalistic observation?

A

Looking at stuff happen used as like a starting point to see what should happen.

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5
Q

What is case history?

A

Getting info from something in the past (retroactively) usually from interview, used for providing proof of something happening.

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6
Q

What is self reporting/surveys and why are they bad?

A

Just a self measure of something, bad because they’re bias people could respond in how they want other people to seem they would.

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7
Q

What are the types of correlation coefficient?

A

denoted by r 1+ is positive correlation (upwards slope) -1 is negative (down slope) 0 is random

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8
Q

What can correlation designs produce?

A

they show that things are correlated not at all that they are causal

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9
Q

What makes a good experimental design?

A

Causal inference. Nullify all other variables and just try to make the independent variable the only thing that’s changing.

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10
Q

What are three sources of bias?

A

Sampling bias
Expectation bias
operational definitions

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11
Q

What is sample bias?

A

When your sample is unrepresentative of the population

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12
Q

What are expectiation effects?

A

2 types participant expectation bias: placebo, hawthorne (being observed), stereotype threat and demand effects. (use single blind).

then from experimenter: rosenthal effects (pygmalion/golem) wanting to see that they want. (use double blind)

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13
Q

What are the 6 main parts of the neuron?

A

Dendrites (receive), Cell body, axon hillock, axon with the myelin, axon terminals/synapses.

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14
Q

What does the cell body do?

A

they’re in all cells

contains nucleus and all structures like dna for function

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15
Q

What do dendrites do?

A

receive signals from other neurons (unique to neurons)

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16
Q

What does the axon do?

A

Sends signal from hillock to terminal

one per neuron

has that phat myelin sheath

17
Q

What does the axon terminal/terminal bouton do?

A

synapses with other neuron

sends information and neurotransmitters when ap reaches this part

18
Q

What are glial cells and the three types mentioned

A

oligodendrocytes (myelin sheath)

Astrocytes (BBB and nutrients)

Microglia (immune system in brain)

19
Q

What are synapses?

A

join axon terminals of one neuron to the dendrites of another

presynaptic (body to axon terminal) and postsynaptic (dendrite to cell body)

20
Q

whats the ions causing resting membrane potential of -70mv

A

sodium and potassium

21
Q

whats membrane potential

A

difference between intracellular and extracellular charges

22
Q

what are the three important types of ion channels?

A

sodium potassium pump

voltage dependant ion channels

ligand-gated ion channels

23
Q

whats the sodium potassium pump?

A

sodium out (3) k+ in (2) makes the negative resting potential

24
Q

how do APs work on transmitter release?

A

synapses from dendrites cause ap change about threshold then release

25
Q

What are voltage gated ion channels /

A

opens at threshold lets na+ intracellular, depolarises

26
Q

summaries what happens during an AP to voltage gated ion channels

A

start of depol threshold is hit sodium channels open then at the top they close K+ opens (k+ out) and then then close completely after hyperpolarization.