PNB 2XA3 Chapter Notes - Chapter 4: Bigram, Agnosia, Knowledge Network

• School: McMaster University
• Department: Psychology, Neuroscience & Behaviour
• Course: PNB 2XA3
• Professor: David I Shore

Document Summary

Recognition: some early considerations: your perception is influenced by context, bottom-up pro(cid:272)esses: pro(cid:272)esses that are dire(cid:272)tly shaped (cid:271)y the sti(cid:373)ulus (cid:862)data dri(cid:448)e(cid:374)(cid:863, also influenced by knowledge and expectations, top-down processes: pro(cid:272)esses that are shaped (cid:271)y k(cid:374)o(cid:449)ledge (cid:862)(cid:272)o(cid:374)(cid:272)ept dri(cid:448)e(cid:374)(cid:863) Integrative agnosia- impaired in tasks that require them to judge how feature are bound together to form complex objects. It"s easier to recognize a letter in context, of a familiar context (word: well-formedness is a good predictor of word recognition, more english-like and more context the better. Making errors: strong tendency to misread less-common letter sequences as if they were more common patterns, perceive input as more regular than it actually is, guided by some knowledge of spelling patterns. Ambiguous inputs: feature will fire that is more familiar, (cid:862)the cht(cid:863) (cid:862)tae cat(cid:863) Accuracy: to maximize accuracy, scrutinize every letter, this makes reading slow, because when you read you actually just read a few letters and make inferences.