• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Hindbrain Glucoprivation Effects on Gastric Vagal Reflex Circuits
Hindbrain Glucoprivation Effects on Gastric Vagal Reflex Circuits

... for iontophoretic marking of recording sites, was used in the identification and recording of activity of gastric-NST or -DMN neurons, as described previously (McCann et al., 1992; Viard et al., 2012). Extracellular signals from the micropipette were amplified (5000⫻; WPI DAM 50 Differential Amplifi ...
Linking Topography to Tonotopy in the Mouse Auditory
Linking Topography to Tonotopy in the Mouse Auditory

... lesions were made at various rostral-caudal positions in the MGB identified with the silicon probe. FRAs were measured at different insertion depths with a tungsten microelectrode, and small lesions were made by passing 0.8 !A of current for 12 s at one or two points of interest along the lateral-to ...
The Switch of Subthalamic Neurons From an Irregular to a Bursting
The Switch of Subthalamic Neurons From an Irregular to a Bursting

... wax, as described previously (Darracq et al., 1996; Gervasoni et al., 1998, 2000; Soulie`re et al., 2000). This U-shaped piece later allowed painless head restraint of the rat. The animal was then removed from the stereotaxic apparatus and allowed to recover from surgery and anesthesia for 48 hr bef ...
segregation of stimulus phase and intensity coding in the cochlear
segregation of stimulus phase and intensity coding in the cochlear

... spike times are measured with respect to the sine wave period present at the time the spike is detected, not to the one which caused the neuron to respond. The time difference between the activating and measurement sine wave periods corresponds to the neuron's response latency, which is about 2.5 to ...
Dynamics and Synchronization of Motifs of Neuronal Populations in the Presence
Dynamics and Synchronization of Motifs of Neuronal Populations in the Presence

... Altogether, these approaches demonstrate the tendency of segregation of brain activity. The recognition of this fact leads straightforwardly to the necessity of an integration principle. Cognitive functions, like perception, attention, and memory, demand to assemble pieces of information that are co ...
Afferents of dopamine neurons
Afferents of dopamine neurons

... Non-synaptic release sites, collaterals to other regions Difficulties of ‘control’ of the whole arborization (branch point failures, local control of release at level of terminals, metabolic support for such a large arborization) Different to other neurons in the basal ganglia ...
SAD Kinases Sculpt Axonal Arbors of Sensory Neurons through
SAD Kinases Sculpt Axonal Arbors of Sensory Neurons through

... protein levels. Second, short-duration NT-3/TrkC signals transiently activate SADs by inducing dephosphorylation of C-terminal domains, thereby allowing activating phosphorylation of the kinase domain. We propose that SAD kinases integrate long- and short-duration signals from extrinsic cues to scul ...
MS Word DOC - AvianBrain.org
MS Word DOC - AvianBrain.org

... am very grateful). I thank long and productive discussions on the development and evolution of the brain, and on a possible new avian brain nomenclature maintained during several years with Luis Puelles. I also thank discussions and input on a possible new avian brain nomenclature from George Paxino ...
Emotional and Behavioral Correlates of Mediodorsal Thalamic
Emotional and Behavioral Correlates of Mediodorsal Thalamic

... During subsequent surgery or during the recording session, the double end of these artificial earbars was pressed into the indentations in the acrylic block, and the single end was inserted into the normal earbar slots in the stereotaxic instrument and attached rigidly to the stereotaxic. Hence, the ...
Representing Spatial Information for Limb - Research
Representing Spatial Information for Limb - Research

... discharge is modulated weakly by passive mobilization of the limb but strongly by active movements (Mountcastle et al., 1975; Kalaska et al., 1983; Burbaud et al., 1991). When the activities of area 5 neurons are analyzed according to the scheme of vector coding of movement direction, they appear to ...
Three-dimensional organization of dendrites and local axon
Three-dimensional organization of dendrites and local axon

... important feature of its specific ability to process incoming information, ultimately leading to an output of that neuron. For example, large pyramidal neurons in the cerebral cortex have a very specific and highly ordered threedimensional (3D) morphology of their dendrites and intracortical axons t ...
Functionally Independent Columns of Rat Somatosensory Barrel
Functionally Independent Columns of Rat Somatosensory Barrel

... Diamond, 2000). The spatial resolution of extracellular unit recordings is low, and they do not measure subthreshold responses. Higher spatial resolution (but without temporal resolution) single whisker responses has been obtained from 2-deoxyglucose uptake ...
Thalamocortidal Axons Extend Along a Chondroitin Sulfate
Thalamocortidal Axons Extend Along a Chondroitin Sulfate

... placements of DiI demonstrate the radially oriented neuroepithelial cells that span the telencephalic wall, but no cells with the morphology of postmitotic neurons are evident (Fig. 1A). Scattered faint immunolabeling for CSPGs is present throughout the ventricular zone; a band of intense labeling i ...
ACTIN CYTOSKELETON REGULATION IN NEURONAL
ACTIN CYTOSKELETON REGULATION IN NEURONAL

... For example, axons of motor neurons that innervate a giraffe’s toe must travel through long distances of complex environment to reach their targets. The elaborate patterns of dendrites overshadow the most complex tree in nature, with the dendritic tree from an individual human Purkinje cell possessi ...
Differential Spatial Organization of Otolith Signals in Frog Vestibular
Differential Spatial Organization of Otolith Signals in Frog Vestibular

... conserved positions along the underlying rhombomeric scaffold (Straka et al. 2001). Thus it is possible that 2° canal and 2° otolith neurons of all types are segmentally organized (Baker 1998; Straka et al. 2001; Suwa et al. 1999). Although rhombomeres generally are evident only during embryonic sta ...
Morphometric Investigation of Neurons in the Hippocampal
Morphometric Investigation of Neurons in the Hippocampal

... KAFA, I. M.; ARI, I. & KURT, M. A. Morphometric investigation of neurons in the hippocampal CA1, CA3 areas and dentate gyrus in a rat model of sepsis. Int. J. Morphol., 28(1):183-192, 2010. SUMMARY: Approximately, half of the patients with progressive sepsis develop encephalopathy, but there is scar ...
Temperature Integration at the AC Thermosensory Neurons
Temperature Integration at the AC Thermosensory Neurons

... wild-type with (n ⫽ 7 neurons) and without antenna (n ⫽ 11 neurons). The same bar graph data from A and B were used in C and preparation. The brain sample was placed diD. The bar graph shows the mean percentage of fluorescence increase (⌬F/F ) of the AC neurons during the first response at ⬃25°C rec ...
Clustered Organization of Neurons with Similar Extra
Clustered Organization of Neurons with Similar Extra

... Shanghai Institutes of Biological Sciences Chinese Academy of Sciences Shanghai 200031 China ...
Neural networks underlying parietal lobe seizures: A
Neural networks underlying parietal lobe seizures: A

... Summary In this study we have quantified the ‘‘epileptogenicity’’ of several brain regions in seizures originating in the posterior parietal cortex in 17 patients investigated by intracerebral recordings using stereotactic EEG (SEEG). Epileptogenicity of brain structures was quantified according to th ...
Comparative neuronal morphology of the
Comparative neuronal morphology of the

... reconstructed relative to those in the neocortex and hippocampus (Halavi et al., 2012). In fact, it is revealing that, of the 10,004 digital reconstructions currently in the online repository at Neuromorpho.org, only 24 are cerebellar neurons (as opposed to 5405 cerebral cortex neurons). In terms of ...
Ensemble Patterns of Hippocampal CA3
Ensemble Patterns of Hippocampal CA3

... indicated that, on average, local ripples developed and peaked at the same time, individual events could be “initiated” from any location. Thus, no particular recording site systematically “lead” the ripple event. Local ripples were correlated with single unit activity derived from the same electrod ...
Response Characteristics of Spinal Cord Dorsal Horn Neurons in
Response Characteristics of Spinal Cord Dorsal Horn Neurons in

... Hao, Jing-Xia, Ron C. Kupers, and Xiao-Jun Xu. Response characteristics of spinal cord dorsal horn neurons in chronic allodynic rats after spinal cord injury. J Neurophysiol 92: 1391–1399, 2004; 10.1152/jn.00121.2004. The physiological mechanisms of chronic pain in patients with spinal cord injury ( ...
The Control of Rate and Timing of Spikes in the Deep Cerebellar
The Control of Rate and Timing of Spikes in the Deep Cerebellar

... ⫺40 mV (data not shown). The parameter gmax has not been determined experimentally yet, and we used different gain factors to explore a realistic range of input conductance amplitudes. A gmax of 4.3 pS corresponds to a gain factor of 1 in our experiments. The applied inhibitory conductance trace (Gi ...
Synapse formation in developing neural circuits.
Synapse formation in developing neural circuits.

... synapses, or synaptic transmission. It is therefore befitting that the actual term ‘‘synapse’’ was not coined by a neuroanatomist, but by a physiologist named Charles Sherrington. Sherrington coined the term ‘‘synapse’’ to refer to the special connections from one nerve cell to another that facilita ...
Learning to classify complex patterns using a VLSI network of
Learning to classify complex patterns using a VLSI network of

... as problems of noisy, unmatched elementary devices. Although the reasons for the superiority of the nervous system in the real world are not completely understood, it is obvious that the main methods of neural computation in biology are very different from those of modern digital computers. In the b ...
< 1 ... 18 19 20 21 22 23 24 25 26 ... 308 >

Single-unit recording

In neuroscience, single-unit recordings provide a method of measuring the electro-physiological responses of single neurons using a microelectrode system. When a neuron generates an action potential, the signal propagates down the neuron as a current which flows in and out of the cell through excitable membrane regions in the soma and axon. A microelectrode is inserted into the brain, where it can record the rate of change in voltage with respect to time. These microelectrodes must be fine-tipped, high-impedance conductors; they are primarily glass micro-pipettes or metal microelectrodes made of platinum or tungsten. Microelectrodes can be carefully placed within (or close to) the cell membrane, allowing the ability to record intracellularly or extracellularly.Single-unit recordings are widely used in cognitive science, where it permits the analysis of human cognition and cortical mapping. This information can then be applied to brain machine interface (BMI) technologies for brain control of external devices.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report