scholarly journals An Overview of Stimulus-Specific Adaptation of MGB Neurons in Auditory Thalamus

2016 ◽  
Vol 04 (02) ◽  
pp. 11-18
Author(s):  
梦之 黄
Keyword(s):  
Specific Adaptation ◽  
Auditory Thalamus

scholarly journals Stimulus-specific adaptation in auditory thalamus of young and aged awake rats

2013 ◽  
Vol 110 (8) ◽  
pp. 1892-1902 ◽  
Author(s):  
Ben D. Richardson ◽  
Kenneth E. Hancock ◽  
Donald M. Caspary
Keyword(s):  
Young Adult ◽  
Auditory Cortex ◽  
Brown Norway ◽  
Oddball Paradigm ◽  
Adult Rats ◽  
Specific Adaptation ◽  
Auditory Thalamus ◽  
Gating Mechanism ◽  
Medial Geniculate ◽  
Awake Rats

Novel stimulus detection by single neurons in the auditory system, known as stimulus-specific adaptation (SSA), appears to function as a real-time filtering/gating mechanism in processing acoustic information. Particular stimulus paradigms allowing for quantification of a neuron's ability to detect novel or deviant stimuli have been used to examine SSA in the inferior colliculus, medial geniculate body (MGB), and auditory cortex of anesthetized rodents. However, the study of SSA in awake animals is limited to auditory cortex. The present study used individually advanceable tetrodes to record single-unit responses from auditory thalamus (MGB) of awake young adult and aged Fischer Brown Norway (FBN) rats to 1) examine the presence of SSA in the MGB of awake rats and 2) determine whether SSA is altered by aging in MGB. MGB single units in awake FBN rats displayed SSA in response to two stimulus paradigms: the oddball paradigm and a random blocked/interleaved presentation of a set of frequencies. SSA levels were modestly, but nonsignificantly, increased in the nonlemniscal regions of the MGB and at lower stimulus intensities, where 27 of 57 (47%) young adult MGB units displayed SSA. The present findings provide the initial description of SSA in the MGB of awake rats and support SSA as being qualitatively independent of arousal level or anesthetized state. Finally, contrary to previous studies in auditory cortex of anesthetized rats, MGB units in aged rats showed SSA levels indistinguishable from SSA levels in young adult rats, suggesting that SSA in MGB was not impacted by aging in an awake preparation.

An Overview of Stimulus-Specific Adaptation in the Auditory Thalamus

2013 ◽  
Vol 27 (4) ◽  
pp. 480-499 ◽  
Author(s):  
Flora M. Antunes ◽  
Manuel S. Malmierca
Keyword(s):  
Specific Adaptation ◽  
Auditory Thalamus

Frequency-Dependent Stimulus-Specific Adaptation and Regularity Sensitivity in the Rat Auditory Thalamus

Neuroscience ◽  
2018 ◽  
Vol 392 ◽  
pp. 13-24 ◽  
Author(s):  
Yun-Yun Rui ◽  
Jie He ◽  
Yu-Ying Zhai ◽  
Zhi-Hai Sun ◽  
XiongJie Yu
Keyword(s):  
Frequency Dependent ◽  
Specific Adaptation ◽  
Auditory Thalamus

scholarly journals Stimulus-Specific Adaptation in the Auditory Thalamus of the Anesthetized Rat

PLoS ONE ◽  
2010 ◽  
Vol 5 (11) ◽  
pp. e14071 ◽  
Author(s):  
Flora M. Antunes ◽  
Israel Nelken ◽  
Ellen Covey ◽  
Manuel S. Malmierca
Keyword(s):  
Specific Adaptation ◽  
Auditory Thalamus

scholarly journals Stimulus-Specific Adaptation Occurs in the Auditory Thalamus

2009 ◽  
Vol 29 (22) ◽  
pp. 7359-7363 ◽  
Author(s):  
L. A. Anderson ◽  
G. B. Christianson ◽  
J. F. Linden
Keyword(s):  
Specific Adaptation ◽  
Auditory Thalamus

scholarly journals Cyanobacterial Mats in Calcite-Precipitating Serpentinite-Hosted Alkaline Springs of the Voltri Massif, Italy

2020 ◽  
Vol 9 (1) ◽  
pp. 62
Author(s):  
Aysha Kamran ◽  
Kathrin Sauter ◽  
Andreas Reimer ◽  
Theresa Wacker ◽  
Joachim Reitner ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Microbial Mats ◽  
Environmental Dna ◽  
Cyanobacterial Mats ◽  
Cyanobacterial Community ◽  
Mineral Precipitation ◽  
Community Based ◽  
Specific Adaptation ◽  
Carbonate Buildups ◽  
Generation Sequencing

(1) Background: Microbial communities in terrestrial, calcifying high-alkaline springs are not well understood. In this study, we investigate the structure and composition of microbial mats in ultrabasic (pH 10–12) serpentinite springs of the Voltri Massif (Italy). (2) Methods: Along with analysis of chemical and mineralogical parameters, environmental DNA was extracted and subjected to analysis of microbial communities based upon next-generation sequencing. (3) Results: Mineral precipitation and microbialite formation occurred, along with mat formation. Analysis of the serpentinite spring microbial community, based on Illumina sequencing of 16S rRNA amplicons, point to the relevance of alkaliphilic cyanobacteria, colonizing carbonate buildups. Cyanobacterial groups accounted for up to 45% of all retrieved sequences; 3–4 taxa were dominant, belonging to the filamentous groups of Leptolyngbyaceae, Oscillatoriales, and Pseudanabaenaceae. The cyanobacterial community found at these sites is clearly distinct from creek water sediment, highlighting their specific adaptation to these environments.

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