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Questions and Answers
What is the increase in cocaine use among children described as 'doubles'?
What is the increase in cocaine use among children described as 'doubles'?
- Increased from 1% to 1.5%
- Increased from 1.4% to 1.9%
- Increased from 2% to 3%
- Increased from 1% to 2% (correct)
What did Joe say he saw when shown the pan in his left visual field?
What did Joe say he saw when shown the pan in his left visual field?
He said he didn't see anything
What did Joe say he saw when shown the saw in his left visual field and the hammer in his right visual field?
What did Joe say he saw when shown the saw in his left visual field and the hammer in his right visual field?
He said he saw a hammer
What was Joe able to draw with his left hand when the saw was shown in his left visual field and the hammer in his right?
What was Joe able to draw with his left hand when the saw was shown in his left visual field and the hammer in his right?
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Study Notes
Cocaine Use Statistics
- Cocaine use among children increased from 1.4% in 2004 to 1.9% in 2005, a rise often reported as "doubles" from 1% to 2%.
- The figures indicate that while the increase might seem significant, it reflects rounding in reporting the statistics.
Visual Field Experiment with Joe
- When presented with an item in his left visual field, Joe reported he saw nothing, indicating possible visual processing issues.
- Joe accurately identified the item shown in his right visual field, reporting he saw a hammer when it was presented.
Left and Right Hemisphere Functionality
- Joe's ability to draw the saw with his left hand, when it appeared in his left visual field, suggests intact motor skills linked to the right hemisphere of the brain.
- This highlights the differences in visual perception and motor response based on which side of the visual field the object is presented.
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