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Summary Consciousness & Control

Course
- Consciousness & Control
- Victor Lamme
- 2019 - 2020
- Universiteit van Amsterdam
- Psychologie
419 Flashcards & Notes
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A snapshot of the summary - Consciousness & Control

  • Lecture 1: Attention (hannes)

  • What is the difference between overt and covert attention?

    Overt attention --> Change body perspective to stimuli
    Covert attention --> Change attention without external changes, while maintaining fixation
  • What happens during the cocktailparty effect?
    Capture through unattended infromation though something that stands out. E.g. your name
  • What are the findings from the dichotic listening experiment?
    People can't reproduce an unattended auditory stream after attending another stream simultaniously.
  • What are the findings from the Posner cueing task?

    1. Attention improves reaction time
    2. Larger visual evoked action potentials in P1
  • What does it mean when a cue 'captures' attention?
    A sudden cue 'claims' your attention to a certain location on a screen, even when you are aware that this location is mostly invalid.
  • Does attention always improve your reaction time? If not, why?
    No, the posner cueing task showed that when you delay the target after showing a prime (which captures your attention), your reaction time will decrease (read: gets slower) when this interval is > 300 ms. Why? --> action potential recently fired, and need some time to recover.
  • Explain the object based attention concept?
    Research has shown that when cueing in/on an object, leads to faster response when the target is on the same object then when the target is on a different object. This only occurs when the object are actually perceived.
  • Lecture 1: Attention

  • What does the Posner cuing task show?
    - Attention  --> Faster reation times
    - Larger amplitude action potentials
  • What is inhibition of return in an attentional capture task?
    Time between prime & Target > 300ms --> 
    Valid trials longer RT
    Invalid trials shorter RT
  • Attentional capture & Inhibition of return are expressed at the neural level as:
    - Attentional capture: Increase in sensory responses
    - Inhibition of return:  Decrease in sensory responses

    These have the same spatial distribution as voluntary attention effects.
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