Intro Flashcards
What is sensation:
Sensation is the awareness of a physical stimulus through the senses = receiving
What is perception:
Perception is the ability to apprehend or become aware of something through the senses = interpreting
What is the psychological definition of perception:
The psychological definition of perception is that it brings our knowledge of the world to organize raw data of sensation
Describe an issue with perception:
Indirect or naïve realism is an issue with perception = can’t perceive objects directly
Describe radical skepticism:
Radical skepticism where they believe that knowledge is most likely impossible, which causes doubt to the veracity of belief therefore certainty is never justified
Describe dualism:
Dualism also an issue = fundamental difference between mind stuff and physical stuff
Describe materialism:
Materialism or physicalism = there is no other reality but a physical reality
Describe empiricism
Empiricism also known as blank state where all knowledge comes from sensory experience, ordered by learning associations from sensory experiences = passive view of perception
Emphasizes role of empirical evidence in formation of ideas rather than innate ideas/traditions
Describe nativism:
Nativism = the way we organize experience depends on innate knowledge and perceiver actively involved in perceiving sensory input
List the neural requirements for sensation and perception:
Sensory receptors
Axonal projections to CNS
Central pathways to CNS
Leading to specific sensory area of cerebral cortex and higher associations in cortex
Describe perceptual processing in terms of bottom-up and top-down processing:
Bottom-up processing is sensation, in neural terms it is feeding forward as information comes from sensory input alone
Whereas top-down processing is perception, in neural terms it is feeding back as the input processed is influenced by cognitive factors, memory, expectation, attention and implicit knowledge
