Lecture 6- What Happens To The Information We Ignore Flashcards
With dichotic listening results, participants shadowed
Attended message easily
With dichotic listening results, when asked about unattended message
Physical characteristics were reported but not content
With dichotic listening results , if results were in a foreign language or reversed speech
It was rarely noticed
Broadbent’s filter theory states filtering occurs before
Stimuli are analysed to the semantic level
Parts of the filter model
- Sensory store.
- Filter.
- Detector.
- Short term memory
What does the sensory store do
Holds incoming information for a short period of time
What does the filter do
Analyses messages based on physical characteristics
What does the detector do
Information is processed to determine meaning
What does the short term memory do
Holds information for general processing
What does Triesman’s attenuation model believe happens to unattended messages
Attenuated rather than lost completely
Words need to meet a certain threshold of signal strength to be
Detected
Late selection models believe that both attended and ignored inputs are processed to
Stage of semantic analysis
Late selection models can explain
- Response competition interference
- Negative priming
What is negative priming
Responses to previously ignored stimuli are slowed
What is response competition interference
Incongruent distractor in irrelevant location slows RT
What is load theory
Perceptual capacity is limited, tasks with high perceptual load exhaust capacity making irrelevant distractors filtered at an early perceptual stage
Response competition effects found under
Low load
High perceptual load reduces
- Visual cortex response to background
- Amygdala response to fearful faces
Efficiency of selective attention depends on
Availability of perceptual capacity
Individuals with a high perceptual capacity need
High load to avoid distraction
Capacity differences associated with
- Autism
- Age
- Video game experience
