Perception And Memory Flashcards
(21 cards)
What are the 3 segregations of objects?
~Perceptual organisation into figure and ground
~Perceptual organisation of Stimuli into coherent patterns
~Closure
What are the three cues which perception of distance relies on?
~relative sizes
~Superimposition
~Relative height in the field
What happens during Binocular Disparity?
Each eye receives a slightly different image from an object. The brain then merges the two images. This allows us to judge distance
Memories include….
Past experiences, knowledge and thought.
3 steps in using memory
Storage
Retention
Retrieval
Info entering the brain passes into…..
Sensory memory
How long do visual images last for?
0.5s
How long do auditory images last for?
2s
How long can info be stored in STM for?
30s
Info can either be stored in the STM or ….
Transferred to LTM
Lost by displacement
Lost by decay
Why would info get lost by decay in the STM?
Too few neurons have been stimulated so the info is weak
Working memory can be…?
Manipulated
What are the features of STM
Memory span
Chunking
Rehearsal
Serial position effect
How do you get info from STM to LTM
Rehearsal
Organisation
Elaboration
To transfer a peice of info from STM to LTM….
It has to be encoded
What is shallow encoding
The result of rehearsal. The larger info is held in the STM, the higher the chance it will be encoded
Explain elaborate encoding
If info is linked to previous memories, it is organised into logical categories. This organisation leads to elaborate encoding.
How would retrieval from the LTM be easier?
If it has been stored under many different contexts.
What are the 5 contexts
Episodic Semantic Spatial Procedural Emotional
Where are episodic and semantic memories stored?
In the area of the cortex where the sensory info was received and encoded
What is perception?
The process by which the brain analysis incoming information from sensory neurons and makes sense of it
