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
How vision and movement (Action) influence each other PLUS extra reading summaries related to this topic £6.49   Add to cart
Quickly navigate to
Preview
  2.  
  3. Cardiff University (CF)
  4.  
  5. Psychology
  6.  
  7. Active Vision

Lecture notes

How vision and movement (Action) influence each other PLUS extra reading summaries related to this topic
 54 views  0 purchase

This lecture explains the different types of eye movements: conjugate, disconjugate, shifting, vestibule-ocular reflex, version & vergence, torsion, optokinetic nystagms, and smooth pursuit. The lecture focusses on how we use these eye movements when we are moving, and to perceive objects that are...

[Show more]

Preview 1 out of 12  pages

Document information

  • April 13, 2018
  • 12
  • 2016/2017
  • Lecture notes
  • Dr tom freeman
  • 1

Subjects

Connected book

book image

Book Title:

Author(s):

  • Edition:
  • ISBN:
  • Edition:

More summaries for

All for this textbook (4)

Written for

All documents for this subject (8)

Seller

avatar-seller
emroselewis

Content preview

Lecture 1

All textbooks are concerned with static vision, e.g. contrast sensitivity: sensitivity
to light or dark varies as a function of a scale. Colour vision is another example,
depth cues, stereopsis, and the thatcher illusion.
BUT
Observers move around. There are different types of movement; we are mainly
concerned with eye movements because they are a good model for lots of
different types of movement, they're easy to manipulate and easy to measure.
One of the classic eye movements we make is changing fixation, so going to look
at the sorts of information we use to do this.
 Motion parallax and head translation- observers move around, the things closest
to us move faster on the retina than the things further away, good cue to the 3 rd
dimension. Textbooks on static vision miss out on this cue.
 Flow patterns during self-motion- as you move forward on the retina, everything
is moving in a consistent fashion, it emulates from the image you're moving
towards.
 Head rotation and sound position- what cues are used to perceive sound when
the head is moving.
We move around and do stuff we interact.

The Vision and Action Loop:
Invented by Tom.
Have the generic stages of perceiving, things hit the eye,
photons come in, want to get from 2 dimensions back
out to three.
Image Formation:
How images are formed, thinking about how this
information is relevant or important, and then how the
brain measures it. This is in the early stages of vision.
Know a lot about perception and the visual system.
Measurement-Interpretation:
There is a lot of interacting between higher levels and
lower levels of cognition (arrows could go both ways, not just measurement to
interpretation).
Action:
Action influences vision in the sense that when you move your head around, the
image changes, so the measurement therefore needs to change, and in turn the
interpretation changes. Two-way relationship, the way you interpret things can
influence your actions.
Action influences vision; and vision is for action.

How do you control a particular type of eye movement?
Types of Action:
There are two types of action; actions for getting around and actions for
manipulating and interacting with things. Eye movements are a very good
model for activity, but need to think about how/does it generalise?

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 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 emroselewis. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £6.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

67096 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£6.49
  • (0)
  Add to cart