Chapter 11 The Control of Action Second Edition Cognitive Neuroscience The Biology of The Mind by Mi

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A Possible Semantic Retrieval Circuit At least
for words.
Is this used for pulling other items (besides
words) out of LTM?
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12.17C Thompson-Schill, S.L., Swick, D., Farah,
M.J., DEsposito, M., Kan, I.P., and Knight, R.T.
(1998). Verb generation in patients with focal
frontal lesions A neuropsychological test of
neuroimaging findings. Proc. Natl. Acad. Sci.
U.S.A. 9515855-15860
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Thompson-Schill et al. 1999
Phase 1 Generate Noun ? Verb
Phase 2a Generate Noun ? Verb
Phase 2b Generate Noun ? Color
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Because no response to the tone is required,
subjects are (implicitly) instructed to ignore
the tone.
Lack of (implicit) inhibition is not present at
subcortical levels. But rather only at the
cortical level.
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12-18b
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Patients actually perform better than controls at
identifying which items occurred, but not at
identifying when any specific item occurred.
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Chao, L.L., and Knight, R.T. (1995). Human
prefrontal lesions increase distractability to
irrelevant sensory inputs. Neuroreport Int. J.
Rapid Commun. Res. Neurosci. 61605-1610
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Rogers, R.D., Shahakian, R.A., Hodges, J.R.,
Polkey, C.E., Kennard, C., and Robbins, T.W.
(1998). Dissociating executive mechanisms of task
control following frontal lobe damage and
Parkinsons disease. Brain 121815-842
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Konishi, S., Nakajima, K., Uchida, I., Kameyama,
M., Nakahara, K., Sekihara, K., and Miyashita, Y.
(1998) Transient activation of inferior
prefrontal cortex during cognitive set shifting.
Nat. Neurosci. 180-84
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Adapted from Shallice, T., Burgess, P.W., Schon,
F., and Baxter, D.M., The origins of utilization
behaviour, Brain 112 (1989) 15871598.
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Adapted from Snyder, A.Z., Abdullaev, Y.G.,
Posner, M.I., and Raichle, M.E., Scalp electrical
potentials reflect regional cerebral blood flow
responses during processing of written words,
Proc. Natl. Acad. Sci. U.S.A. 92 (1995)
16891693
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