Katherine M Armstrong
Overview
Explore the profile of Katherine M Armstrong including associated specialties, affiliations and a list of published articles.
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10
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1693
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Recent Articles
1.
Chang M, Armstrong K, Moore T
J Neurosci
. 2012 Feb;
32(6):2204-16.
PMID: 22323732
Recent studies suggest that trial-to-trial variability of neuronal spiking responses may provide important information about behavioral state. Observed changes in variability during sensory stimulation, attention, motor preparation, and visual discrimination...
2.
Clark K, Armstrong K, Moore T
Proc Biol Sci
. 2011 Jan;
278(1709):1121-30.
PMID: 21247952
Since the discovery of the nervous system's electrical excitability more than 200 years ago, neuroscientists have used electrical stimulation to manipulate brain activity in order to study its function. Microstimulation...
3.
Churchland M, Yu B, Cunningham J, Sugrue L, Cohen M, Corrado G, et al.
Nat Neurosci
. 2010 Feb;
13(3):369-78.
PMID: 20173745
Neural responses are typically characterized by computing the mean firing rate, but response variability can exist across trials. Many studies have examined the effect of a stimulus on the mean...
4.
Armstrong K, Chang M, Moore T
J Neurosci
. 2009 Dec;
29(50):15621-9.
PMID: 20016076
Voluntary attention is often allocated according to internally maintained goals. Recent evidence indicates that the frontal eye field (FEF) participates in the deployment of spatial attention, even in the absence...
5.
Armstrong K, Moore T
Proc Natl Acad Sci U S A
. 2007 May;
104(22):9499-504.
PMID: 17517599
Visual attention provides a means of selecting among the barrage of information reaching the retina and of enhancing the perceptual discriminability of relevant stimuli. Neurophysiological studies in monkeys and functional...
6.
Armstrong K, Fitzgerald J, Moore T
Neuron
. 2006 May;
50(5):791-8.
PMID: 16731516
The influence of attention on visual cortical neurons has been described in terms of its effect on the structure of receptive fields (RFs), where multiple stimuli compete to drive neural...
7.
Awh E, Armstrong K, Moore T
Trends Cogn Sci
. 2006 Feb;
10(3):124-30.
PMID: 16469523
Natural scenes contain far more information than can be processed simultaneously. Thus, our visually guided behavior depends crucially on the capacity to attend to relevant stimuli. Past studies have provided...
8.
Moore T, Armstrong K, Fallah M
Neuron
. 2003 Nov;
40(4):671-83.
PMID: 14622573
Covert spatial attention produces biases in perceptual performance and neural processing of behaviorally relevant stimuli in the absence of overt orienting movements. The neural mechanism that gives rise to these...
9.
MacWalter R, Fraser H, Armstrong K
Ann Pharmacother
. 2003 Mar;
37(4):510-2.
PMID: 12659605
Objective: To report a case of increased international normalized ratio (INR) associated with the addition of orlistat to the drug regimen of a patient receiving warfarin therapy. Case Summary: A...
10.
Moore T, Armstrong K
Nature
. 2003 Jan;
421(6921):370-3.
PMID: 12540901
Several decades of psychophysical and neurophysiological studies have established that visual signals are enhanced at the locus of attention. What remains a mystery is the mechanism that initiates biases in...