The Ravenous Brain: How the New Science of Consciousness Explains Our Insatiable Search for Meaning (51 page)

BOOK: The Ravenous Brain: How the New Science of Consciousness Explains Our Insatiable Search for Meaning
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155
Similar results . . . soccer, baseball . . . touch typing
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CHAPTER 5: THE BRAIN’S EXPERIENCE OF A ROSE
 
160
Woman was born . . . no cerebellum
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160
Cerebellum . . . 80 percent of . . . brain’s neurons
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161
Isn’t enough neural coherence . . . aware . . . when . . . awake
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163
Similar stories occur for blindtouch
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163
A visual experience . . . primary visual cortex is missing
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163
Degraded form of consciousness . . . matches their reduced ability
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164
Blindsight patient in the fMRI scanner
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165
Nikos Logothetis and his team, who carried out
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165
Perception . . . persist . . . momentary gap of the eye blink
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166
Primary visual cortex is not quite as dumb
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168
Two other regions also light up at least as brightly
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168
Record . . . experiences switch . . . candlestick or faces
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168
Posterior parietal . . . always activated . . . with the lateral prefrontal
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169
Stanislas Dehaene . . . showed subjects a rapid sequence
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169
Touch or a sound, or . . . combination of senses
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169
Physical size . . . brain structure . . . links with awareness
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169
Antoine Del Cul and colleagues gave patients
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170
Jon Simons and colleagues gave a memory test
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170
Matt Davis and colleagues played volunteers . . . sentences
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170
The lowest share compared to our primate cousins
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171
Wilder Penfield along with his colleague Joseph Evans
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172
Patients with prefrontal cortex damage . . . working memory deficit
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173
Hemispatial neglect . . . associated either with . . . prefrontal or parietal
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173
Neglected patients . . . place a mark . . . right edge
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173
Edoardo Bisiach . . . asked hemispatial-neglect patients to imagine
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174
Margarita Sarri . . . an experiment on neglect patients
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175
“There is no there, there”
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175
Recognize colors and read words, but couldn’t do both
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175
Bob Knight, has come across such a patient
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176
Working memory and attention . . . prefrontal parietal network . . . both
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176
Increase the number of letters . . . working memory
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176
Number of abstract relations between items of an IQ task
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176
Number of spatial locations you have to remember
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176
If you switch attention between tasks
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, 2003. 41(3): 357–370.
 
176
If you attend to visual changes on a screen
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Brain
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N. Hon et al., Frontoparietal activity with minimal decision and control.
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176
Whenever we perform a complex or novel
. . . task
J. Duncan and A. M. Owen, Common regions of the human frontal lobe recruited by diverse cognitive demands.
Trends Neurosci
, 2000. 23(10): 475–483.
 
176
These regions  . . . closely linked with IQ
J. R. Gray, C. F. Chabris, and T. S. Braver, Neural mechanisms of general fluid intelligence.
Nat Neurosci
, 2003. 6(3): 316–322.
J. Duncan, A neural basis for general intelligence.
Science
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177
Nikki Pratt . . . gave volunteers a classic attentional task

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