Week 1 Flashcards

(53 cards)

1
Q

What does your memory store?

A
  • your personal experiences.
  • emotions.
  • preferences/dislikes.
  • motor skills.
  • world knowledge.
  • language
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2
Q

Fundamentally, you as a person are derived from…

A

experiences that have been stored in your nervous system

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3
Q

Fundamentally, you as a person are derived from
experiences that have been stored in your nervous system.
How is this possible?

A

your brain has developed the capacity to store information

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4
Q

How are memories stored in the brain?

  1. There is a specific location where all memories are
    stored
  2. Memories are stored across a network of connections
  3. Each memory is a unique neuron (e.g., a grandmother
    cell)
  4. Memories are not associated with anything biological
  5. Other
A
  1. Memories are stored across a network of connections
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5
Q

Learning and memory are unobservable but instead they are…

A

theoretical concepts

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6
Q

true or false: learning and memory are theoretical concepts

A

True

  • They are theoretical concepts that are proposed to explain the fact that
    our behavior is influenced by our past experiences.
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7
Q

What is the process of learning and memory?

A

experience observable –> learning - memory inferred –> behaviour observable

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8
Q

True or false: Learning and memory process cannot observed but instead inferred to exist

A

Ture

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9
Q

Learning

A

is the process of acquiring representations of new
information

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10
Q

Memory

A

refers to the persistence of that
information in a state that can be revealed at a later time

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11
Q

other definition of learning and memory

A

one might also say that learning is a set of processes initiated by
experience and memory is a product of those processes.

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12
Q

Psychologists only study memory at a

A
  • single level of analysis
  • they study only the relationship between experience and behaviour
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13
Q

What does it mean that psychologists only study the relationship between experience and behaviour?

A

This means they do not directly manipulate or measure brain processes

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14
Q

How do neurobiologists study memory?

A

they are motivated by the
belief that memory traces have a
physical basis in the brain

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15
Q

For neurobiologists to understand the physical basis of memory

A

they use a multiple level approach

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16
Q

neurobiologists and studying memory methods

A
  • manipulates brain
  • responses in the brain to experience
  • drugs are measured
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17
Q

neurobiologists study

A

brain systems
synapses
molecules
and behaviour

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18
Q

Neurobiologists want to understand how the brain

A

acquires, stores, and maintains representations
of experience in a persistent state that permits the information contained in the representation to be retrieved and influence behaviour

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19
Q

The last decade of the 19th Century is referred to as the

A

“golden age of memory” because during that era many of the basic phenomena and ideas emerged

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20
Q

What did Hermann Ebbinhaus develop?

A

developed the first
scientific methods for assessing the acquisition and retention of a controlled experience.

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21
Q

to study “pure memory” requires

A

methodology that could separate what the subject already has learned from what the
subject was now being asked to remember.

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22
Q

What did Ebbinghaus invent?

A

The nonsense syllable

23
Q

Ebbinghaus and the first forgetting curve

A
  • documented the first
  • it declines
  • shape of the curve: most of the occurs during the first hour
  • highest percent recalled happens during the first minute
  • people gradually forget overtime
24
Q

Single trace theory

A

explains the forgetting curve by assuming that the strength of a single memory trace declines monotonically as a function of time between learning
and the retention test.

25
Dual-trace theory
explains the forgetting curve as the product of a rapidly acquired short term trace that has a fast decay rate and slowly established long-term trace that decays slowly. short term component - around the 1st minute of retention interval long term component - around the 24 hrs retention interval
26
Theodule Robot proposed?
that during diseases of the brain, memories disappear in an orderly fashion
27
Dissolution of memory (most to least vulnerable)
1. recent memories 2. personal memories 3. habits, skills 4. emotional memories
28
Theodule Ribot proposed pt 2.?
also proposed that old memories are more resistant to disruptive influences on the brain = Ribot's Law
29
Serge Korsakoff
described the syndrome produced by alcohol now called Korsakoff’s Syndrome.
30
Korsakoff's syndrome
characterized by what we would now call anterograde amnesia—the inability to acquire new memories
31
Late stages of Korsakoff's syndrome
there is also retrograde amnesia—the loss of memories acquired before the onset of the disease. Example: Following a severe head injury, a person might lose memories from the months or years preceding the accident—such as details about personal history or past events—while still being able to form new memories after recovery.
32
Korsakoff also proposed...
that amnesia could be due to either storage failure or retrieval failure
33
William James proposed...
that memories emerge in stages
34
William James memory emergence stages
An after image is supported by a very short-lasting trace, then replaced by the primary trace that also decays after image --> primary memory --> secondary memory
35
Secondary memory
viewed as the reservoir of enduring memory traces that with an appropriate retrieval cue can be recalled
36
Ivan Pavlov
developed the fundamental methodology for studying associative learning in animals
37
Pavlovian conditioning method
- two events called the CS (conditioned stimulus e.g., tone) and US (unconditioned stimulus e.g., shock) are presented together. - Subsequently, the CS evokes the response called the CR (conditioned response e.g., freezing). - Psychologists assume that the CS evokes the CR because the CS gets associated with the US. - Psychologists and neurobiologists continue to use this method to study associative learning in animals.
38
Edward Throndike
developed instrumental conditioning
39
Instrumental conditioning
-how we learn about the consequences of our actions - correct behavior is learned because the consequences of successful outcome (a satisfying state) strengthen connections between the stimulus (S) and correct response (R), and the consequence of unsuccessful responses weaken the competing and wrong S–R connections.
40
Santiago Ramon y Cajal's two big ideas
1. the neuron doctrine 2. the synaptic plasticity hypothesis
41
Neuron Doctrine
The idea that the brain is made up of discrete cells called nerve cells, each delimited by an external membrane.
42
The synaptic plasticity hypothesis
The idea that the strength of a synaptic connection can be modified by experience.
43
according to Golgi, prior to accepting the neuron doctrine
the nervous system represented an exception to cell theory, being formed not by independent cells but rather by a gigantic net.
44
Golgi believed...
that the protoplasmic processes we now call dendrites were in contact with blood vessels and functioned to provide nutrients to the cell. business end of the nerve cells is carried out by what we now called axons which were continuous with each other and formed the reticulum or network.
45
Cajal's Major Contributions
- identified the neuron as an independent unit - argued about axon endings
46
Cajal identified the neuron as an independent unit
- refuted (refused) the idea that nerve cells were linked into continuous network
47
What did Cajal's identification that the neuron works as an independent unit lead to?
accepted view that neurons are truly independent genetically derived units that are composed of the - cell body (soma) - dendrites - a single axon
48
Canal argued that axon endings were
were contiguous with dendrites but not continuous (fused) with them. This axon-dendritic junction is now known as the the synapse.
49
The neuron doctrine - the basis of modern neuroscience
- The neuron is an anatomical unit—the fundamental structural and functional unit of the nervous system. - The neuron is composed of three parts: cell body, dendrites and axons - Neurons are discrete cells which are not continuous with other cells. - The points of connection between neurons are called synapses. - The neuron is a physiological unit. Electrical activity flows through the neuron in one direction (from dendrites to the axon, via the cell body) This is called this the Law of Dynamic Polarization
50
Cajal is also credited with what is now called the synaptic plasticity hypothesis
the strength of a synaptic connection can be modified by experience
51
Multiple Memory Systems Theory
* Different kinds of information are processed and stored in different parts of the brain
52
What is the evidence for the MMS Theory?
brain damage in humans has different effects depending on the location of the damage ex. HM could not form declarative memories but could learn procedural tasks - could not remember learning things - was learning, but just could not remember learning - no memory of learning
53
Theories that parsimoniously explain data from single tasks will never generalize to memory as a whole because their core assumptions are too limited...
instead, memory theory should be based on a broad variety of evidence