Salience (neuroscience) - Factbites
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Topic: Salience (neuroscience)


    Note: these results are not from the primary (high quality) database.


In the News (Fri 25 Dec 09)

  
 Computational Neuroscience Lab - The Mind/Brain Institute - The Johns Hopkins University
Stimulus dependence of attention, as measured by the correlation between computed stimulus salience and fixation locations, was found to be significantly greater than that expected by chance alone and furthermore was greatest for eye movements that immediately follow stimulus onset.
A biologically motivated computational model of bottom-up visual selective attention was used to examine the degree to which stimulus salience guides the allocation of attention.
Additionally, the effect of the drop in visual sensitivity as a function of eccentricity on stimulus salience was examined, modeled, and shown to be an important determiner of attentional allocation.
cnslab.mb.jhu.edu /research.cgi?ATTENTION

  
 Erowid Conference Vault : Society for Neuroscience (2003) : Notes from the Social Issues Roundtable
However, drugs of abuse generally increase DA through release or by reuptake inhibition, which leads to an even greater increased sense of salience for the drugs but a decreased salience for natural reward.
Erowid Conference Vault : Society for Neuroscience (2003) : Notes from the Social Issues Roundtable
There needs to be graduated rewards, because individuals generally are not willing to wait 12 months for the one big payoff of having their records expunged.
www.erowid.org /general/conferences/conference_sfn1.shtml

  
 The Prefrontal Cortex Regulates Lateral Amygdala Neuronal Plasticity and Responses to Previously Conditioned Stimuli -- Rosenkranz et al. 23 (35): 11054 -- Journal of Neuroscience
neutral stimuli and stimuli endowed with affective salience.
BLA neurons exhibit significantly greater responses to odors that were conditioned previously in the awake rat compared with the response to odors conditioned concurrently with recordings under anesthesia.
Tazumi T, Okaichi H (2002) Effect of lesions in the lateral nucleus of the amygdala on fear conditioning using auditory and visual conditioned stimuli in rats.
www.jneurosci.org /cgi/content/full/23/35/11054

  
 Human and Computer Vision Lab
Contrary to this view, Einhauser and Konig (2003, European Journal of Neuroscience, 17(5), 1089-1097) conclude from their study of human eye movements that luminance contrast does not contribute to the calculation of stimulus salience and that top-down, rather than bottom-up, factors therefore determine attentional allocation in natural scenes.
Eye movements were recorded while participants free-viewed digitized images of natural and artificial scenes.
Human eye movements were recorded while participants viewed a series of digitized images of complex natural and artificial scenes.
hcvl.hci.iastate.edu /cgi-bin/research.cgi?EYE_MOVEMENTS   (806 words)

  
 Publications
Mercado, E., III, Myers, C. E., and Gluck, M. Modeling auditory cortical processing as an adaptive chirplet transform Eighth Annual Computational Neuroscience Meeting.
Rokers, B., and Myers, C. Novelty versus Salience: A Dynamic Model of Learning in the Septo-Hippocampal System.
Mercado, E., III, Myers, C. and Gluck, M.A. Modeling auditory cortical processing as an adaptive chirplet transform.
www.gluck.edu /html/publications.html   (806 words)

  
 Salk Institute for Biological Studies
Reynolds J.H. and Desimone R (2003) Interacting Roles of Attention and Visual Salience in V4.
Reynolds, J.H., Chelazzi, L., and Desimone, R. (1999) Competitive Mechanisms Subserve Attention in Macaque Areas V2 and V4, The Journal of Neuroscience, 19: 1736-1753.
Reynolds J.H. and Fallah M. (2004) The role of competitive circuits in extrastriate cortex in selecting spatially superimposed stimuli.
www.salk.edu /faculty/faculty/details.php?id=41   (411 words)

  
 RETICULUM: Neuroscience History Resources
RETICULUM is a gateway to Internet resources for history and historians of basic, clinical, and behavioral neuroscience.
Links to existing sites are reviewed for salience and accuracy, organized by topic for convenient access, and regularly tested for availability.
RETICULUM logo adapted with permission of Thomas E. Starzl, M.D., Ph.D. (Outline of the brain of the cat, showing the ascending reticular activating system in the brain stem, receiving connections from afferent paths, and exerting generalized influences upon the cerebral cortex.
www.bri.ucla.edu /nha/RETICULM.htm   (155 words)

  
 Intra-Accumbens Amphetamine Increases the Conditioned Incentive Salience of Sucrose Reward: Enhancement of Reward "Wanting" without Enhanced "Liking" or Response Reinforcement -- Wyvell and Berridge 20 (21): 8122 -- Journal of Neuroscience
Intra-accumbens amphetamine nearly tripled the incentive impact triggered by the CS+ sucrose cue, expressed by the increase in pressing elicited by the cue, but amphetamine had relatively little effect on pressing in the absence of the cue.
The pattern of the effect by amphetamine on the control lever shows no relationship to the cue, in contrast, being sometimes greatest during the presence of the cue, sometimes during its absence, and sometimes producing little enhancement at all.
Amphetamine consistently enhanced pressing on the sucrose lever primarily during the CS+ sucrose cue.
www.jneurosci.org /cgi/content/full/20/21/8122   (7737 words)

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