Proposed ability of brain cells to represent different types of information
In neuroscience, neuronal tuning refers to the hypothesized property of brain cells by which they selectively represent a particular type of sensory, association, motor, or cognitive information. Some neuronal responses have been hypothesized to be optimally tuned to specific patterns through experience.[1] Neuronal tuning can be strong and sharp, as observed in primary visual cortex (area V1) (but see Carandini et al 2005 [2]), or weak and broad, as observed in neural ensembles. Single neurons are hypothesized to be simultaneously tuned to several modalities, such as visual, auditory, and olfactory. Neurons hypothesized to be tuned to different signals are often hypothesized to integrate information from the different sources. In computational models called neural networks, such integration is the major principle of operation. The best examples of neuronal tuning can be seen in the visual, auditory, olfactory, somatosensory, and memory systems, although due to the small number of stimuli tested the generality of neuronal tuning claims is still an open question.
^Sakai, Kuniyoshi; Miyashita, Yasushi. Neuronal tuning to learned complex forms in vision. NeuroReport 1994, 5:829-832.
^Matteo Carandini, Jonathan B. Demb, Valerio Mante, David J. Tolhurst, Yang Dan, Bruno A. Olshausen, Jack L. Gallant and Nicole C. Rust. Do we know what the early visual system does? Journal of Neuroscience 25:10577-10597.
information. Some neuronal responses have been hypothesized to be optimally tuned to specific patterns through experience. Neuronaltuning can be strong and...
Look up tuning in Wiktionary, the free dictionary. Tuning can refer to: Tuning, the process of tuning a tuned amplifier or other electronic component...
receptive field. This property is called neuronaltuning. In the earlier visual areas, neurons have simpler tuning. For example, a neuron in V1 may fire...
Caenorhabditis elegans. Myelination, formation of the lipid myelin sheath around neuronal axons, is a process that is essential for normal brain function. The myelin...
characterising the hypothetical relationship between the stimulus and the neuronal responses, and the relationship among the electrical activities of the...
Neuronal noise or neural noise refers to the random intrinsic electrical fluctuations within neuronal networks. These fluctuations are not associated...
Edelman's 1987 book Neural Darwinism introduced the public to the theory of neuronal group selection (TNGS) – which is the core theory underlying Edelman's...
lipoprotein structures at the presynaptic membrane called porosomes. The neuronal porosome proteome has been solved, providing the molecular architecture...
explaining consciousness. The NCC are defined to constitute the minimal set of neuronal events and mechanisms sufficient for a specific conscious percept, and...
Brain Res Bull 13(4): 585-90. Bajo, V. M., M. A. Merchan, et al. (1993). "Neuronal morphology and efferent projections of the dorsal nucleus of the lateral...
superposition problem by more effectively identifying the signature of synchronous neuronal signals as belonging together for subsequent (sub-)cortical information...
neuronal networks work near phase transitions. Experimental recordings from large groups of neurons have shown bursts of activity, so-called neuronal...
quantitative vibratory testing and the Rydel-Seiffer tuning fork test. The typical frequency used for the tuning fork is 128 Hz. Some common areas for testing...
depend on a process of "neuronal recycling" that causes brain circuits originally evolved for object recognition to become tuned to recognize frequent letters...
fusion of membranes in exocytosis. Their function however is subject to fine-tuning by various regulatory proteins collectively referred to as SNARE masters...
delayed temporal phase of the response. An analysis suggests that specific neuronal populations participate in the processing of familiarity for specific tastants...
neuroactive steroids, are endogenous or exogenous steroids that rapidly alter neuronal excitability through interaction with ligand-gated ion channels and other...
junctions through which neurons' signals can be sent to each other and to non-neuronal cells such as those in muscles or glands. Chemical synapses allow neurons...
in the EEG data, which is not present for other stimuli. The spike in neuronal activity correlating to this frequency is not restrained to the tonotopic...
of the AIS can change showing a degree of plasticity that can fine-tune the neuronal output. A longer AIS is associated with a greater excitability. Plasticity...
It is made up of a number of sub-nuclei that are distinguished by their neuronal morphology and density, by their afferent and efferent connections, and...
synaptic and non synaptic receptors located primarily on the membranes of neuronal and glial cells. Glutamate (the conjugate base of glutamic acid) is abundant...
complexity tuned responses; intermediate nuclei have broad tuning responses; and ventral nuclei have broad and moderately complex tuning curves. Ventral...
Global Information