Spatial Vision

Question 1

3 components the explanation of the Tilt-after effect relies on

Answer 1

1. Orientation tunes neurons respond best to preferred direction, but also respond to similar orientations.
2. Perceived orientation is determined by the distribution of responses across all the cells.
3. Adaption - a cells response to a stimulus decreases following prolonged activity.

Question 2

The biggest shift in perceived orientation occurs when….

Answer 2

The adapting pattern is closer to the test pattern.

Question 3

High Spatial Frequency

Answer 3

Thin bars: can fit more bars per one degree on the retina.

Question 4

Low Spatial Frequency

Answer 4

Fat bars: can fit less bars per one degree on the retina.

Question 5

At high contrast the distinction between light and dark….

Answer 5

Can be seen across varying levels of spatial frequency.

Question 6

At low contrast the distinction between light and dark….

Answer 6

can only be seen at intermediate spatial frequencies.