Back to AI Flashcard MakerPsychology /Cognitive Neuroscience Chapter 6: Attention Part 2
Cognitive Neuroscience Chapter 6: Attention Part 2
This deck covers key concepts from Chapter 6 of Cognitive Neuroscience, focusing on auditory and visual attention, including brain responses, ERP components, and hemispheric differences.
What is the auditory N1 potential? How was it discovered?
It’s the first dip in the negative of a waveform from at about 90ms post stimulus. waveform associated with attention. The attention effect highlights the first or initial object which is shown to a participant in an ERP. This is the full blow detection of the stimulus
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Key Terms
Term
Definition
What is the auditory N1 potential? How was it discovered?
It’s the first dip in the negative of a waveform from at about 90ms post stimulus. waveform associated with attention. The attention effect highlights...
What are brainstem-evoked responses? Are they sensitive to attention or not?
brainstem invoked response are automatic like pupil dilations. Not sensitive to attention.
What does the P20-50 effect tell us about attention?
=‘s time it takes for auditory inputs to reach the cortex . In sylvan fissure, with very specific test when really paying attention (attention influen...
Which brain regions are related to the N1 and the P20-50 waveforms?
M20-50 effect in primary auditory cortex (sylvian fissure). N1 (180ms) seconday aud cortex
According to MEG studies, how early in the perceptual process does attention influence auditory perception?
20-50ms?
Does auditory attention affect the belt or the lateral parabelt region of Heschl’s gyrus?
Attention influences activity in lateral belt of the secondary auditory cortex; much less influence on activity in the primary auditory cortex.
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| Term | Definition |
|---|---|
What is the auditory N1 potential? How was it discovered? | It’s the first dip in the negative of a waveform from at about 90ms post stimulus. waveform associated with attention. The attention effect highlights the first or initial object which is shown to a participant in an ERP. This is the full blow detection of the stimulus |
What are brainstem-evoked responses? Are they sensitive to attention or not? | brainstem invoked response are automatic like pupil dilations. Not sensitive to attention. |
What does the P20-50 effect tell us about attention? | =‘s time it takes for auditory inputs to reach the cortex . In sylvan fissure, with very specific test when really paying attention (attention influences auditory cortex and influences its firing) |
Which brain regions are related to the N1 and the P20-50 waveforms? | M20-50 effect in primary auditory cortex (sylvian fissure). N1 (180ms) seconday aud cortex |
According to MEG studies, how early in the perceptual process does attention influence auditory perception? | 20-50ms? |
Does auditory attention affect the belt or the lateral parabelt region of Heschl’s gyrus? | Attention influences activity in lateral belt of the secondary auditory cortex; much less influence on activity in the primary auditory cortex. |
What is a mismatch negativity? What does this waveform suggest about how we perceive auditory information? | MMN The auditory system creates templates of expected sounds. When a new stimulus deviates from the template, a mismatch negativity waveform occurs. We perceive auditory info based on previous templates, patterns. ding ding ding grrr |
What hemispheric differences emerge during non-spatial auditory attention? | When attending for specific stimuli in the same location, activity occurs in frontal (especially frontocentral) brain areas. R.h for tonal info (upbeat ending to a question) |
At what point (in milliseconds) do ERP studies detect evidence of attention influencing visual perception? What is this ERP component called? Where in the brain does this component originate? | 80-140ms P1 or the P100 effect. on extra striate cortex and maybe a bit in prim visual cortex. initial perception |
What is cortical unfolding? Why is this useful for the study of visual attention? | blow up brain to see inside sulcus and the activity that exists inside them |
Is information presented in the lower part of the visual field represented above or below the calcarine fissue? | when down the perception is above calcariun issue when stimulus in upper visual field its below |
inhibition of return | it’s actually slower to return back to the place that the cue was first presented at |
What is supramodal attention? Think of a real-world example of this phenomenon. | the focusing of attention on stimulus info across multiple modalities. visual stimulus enhanced when in an auditory attended area |