Results 71 to 80 of about 83,563 (257)

Temporal Symmetry in Primary Auditory Cortex: Implications for Cortical Connectivity [PDF]

open access: yesarXiv, 2006
Neurons in primary auditory cortex (AI) in the ferret (Mustela putorius) that are well described by their spectro-temporal response field (STRF), are found also to have a distinctive property that we call temporal symmetry. For temporally symmetric neurons, every temporal cross-section of the STRF (impulse response) is given by the same function of ...
arxiv  

Spindle oscillations are generated in the dorsal thalamus and modulated by the thalamic reticular nucleus [PDF]

open access: yes, 2008
Spindle waves occur during the early stage of slow wave sleep and are thought to arise in the thalamic reticular nucleus (TRN), causing inhibitory postsynaptic potential spindle-like oscillations in the dorsal thalamus that are propagated to the cortex ...
Chun-Hua Liu   +7 more
core   +1 more source

Apoptosis and proliferation in developing, mature, and regressing epibranchial placodes [PDF]

open access: yes, 2005
Epibranchial placodes and rhombencephalic neural crest provide precursor cells for the geniculate, petrosal, and nodose ganglia. In chick embryos and in Tupaia belangeri, apoptosis in rhombomeres 3 and 5 helps to select premigratory precursor cells and ...
Brunnett, Guido   +4 more
core   +1 more source

Sleep neuroimaging: Review and future directions

open access: yesJournal of Sleep Research, EarlyView.
Summary Sleep research has evolved considerably since the first sleep electroencephalography recordings in the 1930s and the discovery of well‐distinguishable sleep stages in the 1950s. While electrophysiological recordings have been used to describe the sleeping brain in much detail, since the 1990s neuroimaging techniques have been applied to uncover
Mariana Pereira   +17 more
wiley   +1 more source

Development of spatial coarse-to-fine processing in the visual pathway [PDF]

open access: yes, 2012
The sequential analysis of information in a coarse-to-fine manner is a fundamental mode of processing in the visual pathway. Spatial frequency (SF) tuning, arguably the most fundamental feature of spatial vision, provides particular intuition within the coarse-to-fine framework: low spatial frequencies convey global information about an image (e.g ...
arxiv   +1 more source

Habitat complexity promotes species richness and community stability: a case study in a marine biogenic habitat

open access: yesOikos, EarlyView.
Habitat complexity (HC) promotes species richness and abundance. Aquatic environments are faced with intense pressures that threaten the 3D structure of the seafloor, with cascading effects on ecosystem functioning and biodiversity. Maerl or rhodolith beds are marine biogenic habitats created by few species of free‐living non‐geniculate coralline algae
Victor Leite Jardim   +6 more
wiley   +1 more source

Does Corticothalamic Feedback Control Cortical Velocity Tuning? [PDF]

open access: yesNeural Computation 13 (2001), pp. 327-355, 2002
The thalamus is the major gate to the cortex and its contribution to cortical receptive field properties is well established. Cortical feedback to the thalamus is, in turn, the anatomically dominant input to relay cells, yet its influence on thalamic processing has been difficult to interpret.
arxiv  

Evolutionary systematics of the Staphylininae rove beetles (Coleoptera: Staphylinidae) resolved by integration of phylogenomics, comparative morphology and historical biogeography

open access: yesSystematic Entomology, EarlyView.
Higher classification of the rove beetle subfamily Staphylininae is revised based on novel phylogenomic, morphological and biogeographic evidence. Four new subtribes are described for Staphylininae; of them, two are for the tribe Tanygnathinini and two are for the tribe Staphylinini, and both tribes changed in composition due to other novelties ...
José L. Reyes‐Hernández   +6 more
wiley   +1 more source

Neuron analysis of visual perception [PDF]

open access: yes
The receptive fields of single cells in the visual system of cat and squirrel monkey were studied investigating the vestibular input affecting the cells, and the cell's responses during visual discrimination learning process.
Chow, K. L.
core   +1 more source

Epithelial Overexpression of BDNF or NT4 Disrupts Targeting of Taste Neurons That Innervate the Anterior Tongue [PDF]

open access: yes, 2001
Brain-derived neurotrophic factor (BDNF) and neurotrophin-4 (NT4) are essential for the survival of geniculate ganglion neurons, which provide the sensory afferents for taste buds of the anterior tongue and palate.
Albers, Kathyrn M.   +4 more
core   +1 more source

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