Class notes
VISUAL PROCESSING AND AGNOSIA
- Course
- Institution
Lecture notes of 3 pages for the course NEUROPSYCHOLOGY at UNN (LECTURE 18/23)
[Show more]
Seller
Follow
hannahnewton21
Reviews received
Content preview
Lecture 18 – visual processing and agnosiaRetino- Geniculo- Striate pathway;
- How we receive information before it is processed by the brain.
- It travels through the pathway shown by the picture.
- Within they eye it either hits the right or left visual field.
- Processes which filter information before it hits the visual fields;
- Suprachiasmatic nucleus = biologic clock
- Superior colliculus = head and eye movements
- Pulvar nucleus = body motion filter
DORSAL AND VENTRAL CORTICAL PATHWAYS ;
- Pathway = Location, motion, and control of eyes
- Ventral Pathway = Form and object recognition, long term
memory
- Already showing different areas of the brain are devised for
certain processes.
- The more complex feature which are processed are processed by
different medial areas e.g. V1.
Neuropsychology of face perception;
- We use a complex set of mental operations in face perception;
- Pattern recognition
- More specialised processing
- Identity/age/expression/attention/attraction
- social evaluation – trust 100ms
- happens so quick so could suggest there is a dedicated region.
Face perception;
- Are faces a special type of visual stimuli?
- Complexity
- Rapid
- Social
- Evidence for the difference between face and object perception
- Behavioural evidence
- Neuropsychological evidence
Behavioural evidence;
- Faces are not processed in the same way as objects
- Featural (objects) versus configural (faces) processing
- This is shown when looking at the inversion effect greater for faces than non-faces.
- Typically, when looking at these studies participants are given faces either upright or
upside-down. They then have to make a judgment about the faces e.g. gender.
- When in the upside-down position the faces usually look quite normal when they are
actually distorted. So, these areas of the brain actually process upright faces not
upside-down faces. We need to switch to another strategy to look at these more
featural.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller hannahnewton21. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $6.65. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78075 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now