Lecture 15 - Subliminal (non conscious) perception Flashcards
What determines what we become conscious of?
What about information we are not conscious stuff?
Stuff can be processed non-consciously (eg. blindsight and subpriminal priming)
What determines what we become conscious of?
1) Probalistic detection of signals in ‘noise’
2) competition and attention
What is hemianopia?
When you have your visual cortex damaged and cannot see in half of space
What happens if the primary visual cortex (v1) is damaged?
When asked to point to a stimulus the patient claimed to not see - performance is reasonably accurate
“blindsight”
Different ways in which info can get into the brain not just the primary visual cortex and seems conscious visual perception requires feedback loops from the higher visual processes to the visual cortex.
No one area that supports concsious perception need a network.
Subliminal priming
Masked-primes
Our brain is full of stimulus-response associations which can be activated without conscious awareness (like pressing the brakes on a bike)
What is signal detection theory?
Used when psychologists want to measure the way we make decisions under conditions of uncertainty, such as how we would perceive distances in foggy conditions or during eyewitness identification.
If your left primary visual cortex is damaged where might you lose vision from?
The right side of space
What do object affordance experiments show?
Objects subconsciously start to active the action plans associated with them
