Reading Flashcards
What is Riggs’ contact lens study?
Special contact lens that projected images onto a persons retina –> after a few seconds, the images started to fade
What was interesting about Riggs’ contact lens study?
How the images disappeared:
- Features slowly came and went
- Features disappear with whole lines
- For words –> always saw letters, never nonsense
What was Hubel and Weisel’s cat study?
They recorded neural activity in the visual context.
What were the findings of Hubel and Weisel’s cat studies?
Neurons are specialized for feature detection
Discovered feature detectors (neurons that respond to specific features)
Neurons that respond to specific features
Feature detectors
Word superiority effect
Used a T-scope to look at letter perception
Three conditions: Letter flashed at 50 ms, Word condition - letter presented in context, Nonword - scrambled letters
Person was shown a card and asked about letter position
What were the results of the word superiority effect?
best performance was in the Word Condition (showed that letters are easier to recognize in context)
What is the interactive activation model of reading?
Model of visual word recognition
Words are represented across different levels (words, letters, visual features)
The levels interact with each other
Explains how we read ambiguous information
What model explains how we read ambiguous information?
The interactive activation model of reading
Eye-movements in reading
When people read, their eyes jump to different words - it is not a smooth movement from left to right
(T/F) When people read, they read in a smooth movement from left to right.
When people read, their eyes jump to different words - it is not a smooth movement from left to right
When English speakers look at webpages, there is a bias for them to focus where? Why?
on the left side because they read from left-to-right
the time spent focused on a location
fixation
The average fixation in reading is _______
~250ms
What do English readers extract information from in a fixation?
~4 characters to the left
~14 characters to the right
Around the fixation point only __________ letters are seen with 100% accuracy
4-5 letters with 100% accuracy
Can fixations tell us about processing difficulty? If so, how?
Yes; people fixate longer on harder words (low frequency or uncommon words)
About _____% of content words have fixations.
About _____% of function words have fixations.
80%
38%
Eye movements (“jumps”)
Saccades
Duration of saccades is approximately:
20ms
Length of saccades are approximately:
10 letters in length