Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
Investigating some critical spatial parameters of text Involved in the judgement of its clarity.
Member rating: No Rating | Words: | Submitted: Mon Jun 19 2006
Page Preview
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
Investigating some critical spatial parameters of text Involved in the judgement of its clarity Illusions observed in striped patterns have been investigated extensively but the origins of perceptual distortions remain unclear. Illusions in striped patterns were first recorded in the last century, with descriptions such as the oscillations of lines, appearing as waves on closer inspection (Purkinje, 1823; pg. 122; cited in Wilkins, 1995), and lines losing their straightness, with the spaces between such lines becoming coloured (Brewster, 1832; pg. 170; cited in Wilkins, 1995). Patterns of striped lines can induce seizures in patients with photosensitive epilepsy and when these patients view patterns of this kind, epileptiform electroencephalographic activity are often seen (Wilkins, Nimmo-Smith, Tait, McManus, Della Sala, Tilley, Arnold, Barrie & Scott, 1984). When viewing similar patterns of striped lines, individuals not suffering from epilepsy report illusions of colour, shape and motion giving rise to headaches and eyestrain (Wilkins & Nimmo-Smith,...
Get instant access
- Instant, unlimited access to our documents in full
- Swap your work for free access, or pay £4.99
- To see the full version of this document and 150,044 others
