Unit 3: Area of Study 2 - How do People Learn and Remember? Flashcards
Neural Plasticity
Is the ability of the Brain’s neural structure or function to be changed by experience throughout the lifespan
Synaptic Plasticity
Is the ability of the Synapse to change over time
Long-Term Potentiation (LTP)
Is the long-lasting strengthening of Synaptic Connections, resulting in enhanced or more effective Synaptic Transmission
Long-Term Depression (LTD)
Is the long-lasting decrease in the strength of Synaptic Transmission
Neurohormones
Are chemical messengers that are manufactured by Neurons and released from Axon Terminals
Neurotransmitter
Is a chemical substance that is made by a Neuron that carries a message to other Neurons or Cells in Muscles, Organs or other Tissue
The Role of Glutamate in Synaptic Plasticity
Glutamate promotes the growth and strengthening of Synaptic Connections between Neurons within a Neural Pathway that later on represents the memory of what has been learnt
Consolidation
Is the Biological process of making a newly formed memory stale and enduring after learning
The Role of Adrenaline in Learning and Memory
Adrenaline can enhance the Consolidation of Long-Term Memories of emotionally arousing experiences, meaning that these types of events are more likely to be remembered
The Role of GABA in Neural Plasticity
GABA is the primary inhibitory Neurotransmitter in the Central Nervous System. One of its functions is to fine-tune Neurotransmission in the Brain. This in turn allows Neurotransmission to be at the best possible level
Classical Conditioning
Is a type of learning that occurs through the repeated association of two or more different Stimuli
Unconditioned Stimulus (UCS)
Is any stimulus that consistently produces a particular, naturally occurring, automatic response
Unconditioned Response (UCR)
Is the response that occurs automatically when the Unconditioned Stimulus (UCS) is presented
Neutral Stimulus (NS)
Is any Stimulus that does not normally produce a predictable response
Conditioned Stimulus
Is the Stimulus that is neutral at the start of the Conditioning Process by eventually produces a very similar response to that caused by the Unconditioned Stimulus (UCS)
Conditioned Response
Is the learned response that is produced by the Conditioned Stimulus
Classical Conditioning as a Three-Phase Model
- Phase 1: Before Conditioning
- Phase 2: During Conditioning
- Phase 3: After Conditioning
Classical Conditioning as a Three-Phase Model: Phase 1
The Neutral Stimulus produces no relevant response and the Unconditioned Stimulus produces the Unconditioned Response
Classical Conditioning as a Three-Phase Model: Phase 2
The Neutral Stimulus is repeatedly paired with the Unconditioned Stimulus to produce the Unconditioned Response
Classical Conditioning as a Three-Phase Model: Phase 3
The Neutral Stimulus becomes a Conditioned Stimulus and the Conditioned Stimulus produces a Conditioned Response, which is usually very similar to the previously Unconditioned Response
Stimulus Generalisation
Is the tendency for another Stimulus that is similar to the original Conditioned Stimulus to produce a response that is similar, but not identical to the Conditioned Response
Stimulus Discrimination
Occurs when a person or animal responds to only the Conditioned Stimulus, but not to any other Stimulus that is similar to the Conditioned Stimulus
Extinction
Is the gradual decrease in the strength or rate of a Conditioned Response that occurs when the Unconditioned Stimulus is no longer presented
Spontaneous Recovery
Is the reappearance of a Conditioned Response when the Conditioned Stimulus is presented, following a rest period after the Conditioned Response appears to have been extinguished
Summary of the Little Albert Experiment
The 9-month-old boy was exposed to Stimuli and observed, but showed no fear. He was exposed to a white rat and showed no fear but when the rat was presented again and Watson hit a metal pipe with a hammer, Albert cried. After the white rate was paired with the loud noise, Albert cried every time he saw the white rat
Ethical Considerations in the Little Albert Experiment (List 2)
- Informed consent may not have been obtained by Albert’s mother
- Withdrawal rights may not have been presented to Albert’s mother
- Albert was experiencing severe distress but yet the experiment was not stopped
Operant Conditioning as a Three-Phase Model
- Antecedent
- Behaviour
- Consequence
Operant Conditioning
Is a type of learning whereby the consequences of behaviour determine the likelihood that it will be performed again in the future
Antecedent
Is a Stimulus that comes before a specific behaviour
Behaviour
Is the voluntary action that occurs in the presence of the Antecedent Stimulus
Consequence
Is the environmental event that occurs immediately after the Behaviour
Observational Learning
Occurs when someone uses observation of a person’s actions, and the consequences of those actions to guide their future actions
Social Learning
Refers to how the environment in which the learning occurs is important
Observational Learning Processes
- Attention
- Retention
- Reproduction
- Motivation
- Reinforcement
Attention
Is the first step in Observational Learning. It is the process that involves closely watching a model’s behaviour and the consequences of their behaviour
Retention
Is the second step in Observational Learning. It involves the storage of the observed behaviour so the behaviour may be reproduced when needed
Reproduction
Is the third step in Observational Learning. It is the imitation of the behaviour that has already been attended to and retained in memory
Motivation
It is the fourth step in Observational Learning. It refers to how the learner must be motivated to reproduce the observed behaviour
Reinforcement (Observational Learning)
It is the fifth step in Observational Learning. Reinforcement influences the motivation to reproduce the observed behaviour and increases the likelihood of Reproduction
Reinforcement
It is when something is given to an individual to either strengthen their response to a behaviour or eliminate it completely
Types of Reinforcement
- Positive Reinforcement
- Negative Reinforcement
Positive Reinforcer
Is a Stimulus that is given to an individual that increases the likelihood of a desired
response occurs by providing a rewarding consequence
Negative Reinforcer
Is any unpleasant
Stimulus that, when removed increases the likelihood of a specific
response occurring
Positive Reinforcement
Involves giving a Positive Reinforcer after the desired response has been made
Negative Reinforcement
Involves the removal of an unpleasant Stimulus, increasing the likelihood of a response being repeated, thereby strengthening the response
Memory
Is the processing, storage and retrieval of information acquired through learning
Fundamental Processes for Memory
- Encoding
- Storage
- Retrieval
Encoding
Is the conversion of incoming into a usable form so that it can be stored in memory
Storage
Is the retention of the Encoded information over time for future use
Retrieval
Is the recovery of stored information and bringing it into Conscious Awareness for use
Atkinson-Shiffrin Multi-Store Model of Memory
Is a model that represents Memory as consisting of 3 separate components
Atkinson-Shiffrin Multi-Store Model of Memory: Structural Features
Are the permanent features of Memory that do not vary from one situation to another
Structural Features of the Atkinson-Shiffrin Multi-Store Model of Memory
- Sensory Memory
- Short-Term Memory (STM)
- Long-Term (LTM)
Process of Memory
- Sensory Information from the External Environment enters Sensory Memory. If it is not attended to, it is lost from Memory
- If the Sensory Information is attended to, it gets transferred to Short-Term Memory where it gets rehearsed. It it is not rehearsed, it is lost from Short-Term Memory
- If the Sensory Information is rehearsed in Short-Term Memory, it gets encoded into Long-Term Memory where some information may be lost over time.
- If a person wants to retrieve the stored information, it gets brought from Long-Term Memory back into Short-Term Memory
Sensory Memory
Is the entry point of Memory in which incoming Sensory Stimuli are retained in their original form. Sensory Information remains in Sensory Memory just long enough for us to attend to and select the information to be transferred to Short-Term Memory for processing
Capacity of Sensory Memory
Vast, potentially unlimited
Duration of Sensory Memory
About 0.2-4 seconds
Types of Sensory Memory
- Iconic Memory
- Echoic Memory