Attention Flashcards
Attention
Means of directing limited mental resources towards information and processes that are most important at a given moment.
Cocktail Party Effect
Some information in the unattended channel is noticed (eg name or personally relevant words).
Stroop Effect
A demonstration of automacity. Need to focus on the colour rather than the word.
Inattentional Blindness
A distracted person may be unable to see something that is right in front of them.
Change Blindness
Inability to notice changes between scenes (spot the difference or continuity errors).
Early Selection Models
Unattended channel receives little analysis (Filter Model, Attenuation Model).
Broadbent’s Filter Model
There is a register and filter for each sense. Filters carry out pre-attentive analysis on physical attributes of stimuli and the selected stimuli is moved to the detection device and STM.
Support: physical content of unattended channel can be recalled. Neurological evidence of different activity between attended and unattended channels.
Limitations: blocking unattended is only part of attention and doesn’t explain selective attention or cocktail party effect.
Triesman’s Attenuation Model
Similar to filter model, but unattended channel is turned down not off (filter allows physical and salient information to be recalled).
Support: Cocktail party effect, neurological evidence like for filter model.
Limitations: no consideration of selective attention and pre-attentive analysis is almost as complex as attentive analysis.
Late Selection Models
All input receives analysis but only the attended information is actually remembered (Deutsch and Deutsch).
Deutsch and Deutsch
All input goes through the sensory register directly to the detection device. Stimuli is selected just prior to response and remembered.
Support: people can be influenced by distractors they are unaware of (Muller-Lyer with fins that disappear)
Limitations: neurological evidence exists for early selection models as well.
Capacity Models
Attention is not a filter, it is a resource that is allocated across tasks depending on what is most important at a given moment (Multimode theory).
Multimode Theory
We have different attentional resources for each sense and use these to focus on the activities that are important at a given moment.
Support: Tasks using different senses have reduced interference (eg shadowing and hearing a list is hard, but shadowing and reading the list or seeing pictures is easier.
Limitations: we still experience interference even if tasks are different (driving/mobile phones).
Priming
A process through which one input prepares a person to receive another.
Unilateral Neglect
Individual cannot attend to inputs from one side of space.
Divided Attention
Skill of performing multiple tasks simultaneously.