100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Summary Course 2.4 Problem 2 Connections $3.32
Add to cart
Quickly navigate to
Preview
  2.  
  3. Erasmus Universiteit Rotterdam (EUR)
  4.  
  5. 2.4 Perceptie

Summary

Summary Course 2.4 Problem 2 Connections
 0 purchase
  • Course
  • 2.4 Perceptie
  • Institution
  • Erasmus Universiteit Rotterdam (EUR)
  • Book
  • Sensation and Perception

This is part of the summary of Course 2.4 Perception at Erasmus University Rotterdam. I put a lot of effort into making these summaries and included pictures and graphs to make things as understandable as possible. I managed to get quite a high grade on the course exam at the end (8.8). Note though...

[Show more]

Preview 1 out of 4  pages

Document information

  • Unknown
  • September 8, 2017
  • 4
  • 2016/2017
  • Summary

Subjects

  • connection
  • visual system
  • cortex
  • retina
  • visual maps
  • tectopulvinar system
  • geniculostriate system
  • receptive fields
  • neurons
  • feature detectors
  • selective adaptation
  • striate
  • lateral geniculate nucleus lgn

Connected book

book image

Book Title:

Author(s):

  • Edition:
  • ISBN:
  • Edition:

Written for

  • Erasmus Universiteit Rotterdam (EUR)
  • Psychologie
  • 2.4 Perceptie
All documents for this subject (100)

Seller

avatar-seller
LauraLie

Reviews received

Content preview

1
Course 2.4 Perception
Problem 2: Connections
Literature: Goldstein, Gazzaniga, Coren

Signals from the retina to the cortex:
The visual system:
- Retina → optic nerve → Lateral geniculate nucleus (LGN) in the thalamus → Occipital lobe (primary visual
receiving area = striate) → temporal lobe/ parietal lobe/ frontal lobe
- Superior colliculus: involved in controlling eye movements
- Signals from each half of retina cross over to opposite side of the brain




Visula Maps:
- Visual field divided up into 4 quadrands (upper, lower, nasal, temporal)
- Upper visual field projects onto lower retinal surface
- Nasal visual field projects to temporal retinal surface
- Tectopulvinar system (evolutionalry old , shared with many animals)
o No longer dominant in humans
- Geniculostriate system (begins in the same way as tectopulvinar system)
- Optic nerves cross at optic chiasm
o Outside halves of each retina stays on the same side
o Other half crosses to the other side
- Beyond optic chiasm optic nerve is called optic tract
Tectopulvinar System: optic nerve→ brain stem/midbrain →superior collicli → pulvinar → cortex
- branches to brain stem and midbrain
- in animals brain stem = tectum; more primitve visual center compared to cortex
- superior collicli = upper 2 bumps (out of 4) that recives incoming fibers
- most cells are magno type → rapid response to light changes; not sensitive to details, but location and motion
- deeper layers even tactile and auditory stimuli
- input from retina, primary visual cortex, motion processing cortex
- then to pulvinar (lateral posterior nuclei) and later cortex (V2)
Geniculostriate System: Lateral Geniculate Nucleus (LGN)
- Regulates neural information coming from the retina
- Receptive fields of LGN neurons: Center-surround configuration
- Information flow:
o 90% of optic nerves arrive at LGN
o Receives signals from thalamus, cortex, brainstem, other neurons in LGN → output to cortex
o More input from cortex than retina, not much output from LGN to cortex
o Organizes information (dependent on environmental information, receptors that generated
info, left/right eye)

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 LauraLie. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $3.32. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

66184 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 15 years now

Start selling
$3.32
  • (0)
Add to cart
Added