5 – Attention 5 – Inattentional blindness Flashcards
In the cross task for inattentional blindness, what stimuli do people notice and not notice?
- Most don’t notice dot.
- 75% of subjects noticed – colour, flicker and motion.
- When cross moved off centre, subjects IB doubled to 60-80%.
If an item changes the _________ of the scene – e.g. the engine of a plane – it’s easy to spot. If it’s something ________ – a shadow –harder to notice.
If an item changes the MEANING of the scene – e.g. the engine of a plane – it’s easy to spot. If it’s something peripheral – a shadow –harder to notice.
Why do we seem to be unaware of so many parts of the visual field?
We’re unaware that we’re unaware of many parts of the visual field because we’re not processing them. Because there’s no need to – they’re not changing.
What is selection for action?
Focus of attention only on important input. This is the reason why when you’re reaching for something, you don’t process extraneous input is because that input would be distracting –> crosstalk. We DON’T want to process things that will give us erroneous input.
What happens if you change a scene during a blank?
Large changes unnoticed after a blank, as apparent motion is removed. As long as gist of scene isn’t changed.
Allport suggests there is not one ______ for all attentional phenomena. And there is not _______ _______ but ____ in what we can act on
Allport suggests there is not one mechanism for all attentional phenomena. And there is not limited processing but limit in what we can act on.
What does the case of conjoined twins Abby and Brittany suggest?
Evidence for idea that attention is emergent from the system, but there’s not one single basis for all attentional phenomena. Two heads but can coordinate body with no crosstalk.
