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Arterial Blood Supply to the Auditory Cortex of the Chinchilla
Arterial Blood Supply to the Auditory Cortex of the Chinchilla

... tion of all major cerebral arteries, as shown in Fig. 2. Viewed from the ventral direction (lower panel), the anatomy of the arterial circle and its associated major vessels can be seen. The general plan (from caudal to rostral) of vertebral arteries converging to form the basilar artery, which in t ...
Chapter 17-Pathways and Integrative Functions
Chapter 17-Pathways and Integrative Functions

... • Communication of CNS with body structures through pathways • Tracts = groups or bundles of axons that travel together in CNS • Nucleus = collection of neuron cell bodies within CNS • Somatotropy = correspondence between body area of receptors and functional areas in cerebral cortex ...
Chapter 8
Chapter 8

... twelfth cranial nerves; controls movements of the face, neck, tongue, and parts of the extraocular eye muscles ...
This is Your Brain. This Is How It Works.
This is Your Brain. This Is How It Works.

...  Optic nerve- nerve that carries neural impulses from the eye to the brain  Blind Spot- point at which the optic nerve leaves the eye, creating a “blind spot” because there are no receptor cells located there  Fovea- central point in the retina, around which the ...
Gloster Aaron
Gloster Aaron

... A nervous system transduces signals from the external and internal environment of an organism, processes those signals within networks of neurons, and ultimately delivers outputs via motor neurons. These systems depend on rapid and adaptable communication between neurons. The goal of this course is ...
Michael Arbib: CS564 - Brain Theory and Artificial Intelligence
Michael Arbib: CS564 - Brain Theory and Artificial Intelligence

... Why are there mirror neurons? ...
Sensory responses and movement-related activities in extrinsic
Sensory responses and movement-related activities in extrinsic

... opened window was then covered with wax. About 30%, 40% and 30% of the units reported in this study were using wires of 14, 17 and 20 lm in diameter, respectively. For mechanical support, recording electrodes were formed into bundles around a coated copper wire with a diameter of 60 lm that was inse ...
high. 1, treated virgin
high. 1, treated virgin

... neuron (identified as the flexor inhibitor) is excited. Although records from the root supplying the slow extensor muscles are not shown here, other experiments (4, 6) have demonstrated that central elements producing this pattern of flexor output always simultaneously excite extensor motoneurons an ...
The Chemical Senses
The Chemical Senses

... (Kandel, Schwartz & Jessup: Principles of Neural Science 3 rd ed. Fig. 34-8) ...
ABSTRACT BOOK  CHAMPALIMAUD NEUROSCIENCE
ABSTRACT BOOK CHAMPALIMAUD NEUROSCIENCE

... environmental changes. This is achieved mainly by changes in the connectivity between individual nerve cells. Synapses can be modulated in their strength by a variety of different mechanisms. We have investigated a number of these mechanisms, ranging from homeostatic control of synaptic efficacy to ...
The Area Postrema - Queen`s University
The Area Postrema - Queen`s University

... The AP is the most caudal of the sensory CVOs and was the first to be recognized as such in the early part of last century (Wilson 1906). These early studies showed that the AP, but not surrounding area, was stained by intravenously injected dyes (Wislocki and King 1936; Wislocki and Leduc 1952) sug ...
test - Scioly.org
test - Scioly.org

... c. breakdown of the membrane structure d. all of the above 23.The action potential is measured in millivolts [mVO and is ranged from: a. -90mV to +20mV b. -70mVto +30mV c. -65mV to +40mV d. -30mV to +60mV 24. With an action potential, depolarization of the axomembrane is recorded as the gates open, ...
Spatial organization of thalamocortical and corticothalamic
Spatial organization of thalamocortical and corticothalamic

... barrel cortex reveals both a vertical and a tangential organization, suggestive of an intracolumnar organization (Land and Simons, ’85a). Thus regions of high CO reactivity are observed not only in the barrel centers in layer IV but also in the regions deep to individual barrels in lower layer V and ...
Neural computations associated with goal
Neural computations associated with goal

... contingencies  changed  probabilistically  over  time.  They  found  that  lesions  to  the   ACC  sulcus,  but  not  to  the  OFC,  impaired  action  based  choices,  and  that  the  opposite   was  true  for  stimulus  based  choices. ...
How the prefrontal executive got its stripes
How the prefrontal executive got its stripes

... [10–12]. For most areas of the cortical mantle the structural status of an area can be quantitatively approximated by neuron density (e.g. [10,13,14]), especially in the upper layers, which is lower in limbic than in eulaminate areas [15]. The large extent of the prefrontal cortex includes lateral, ...
Vertebrate brains and evolutionary connectomics: on the origins of
Vertebrate brains and evolutionary connectomics: on the origins of

... structure in the non-mammalian forebrain that could readily be compared with the mammalian cortex. The belief in the uniqueness of the mammalian forebrain was particularly emphasized in the writings of Sir Hughlings Jackson (1835– 1911) [5], and his co-worker, David Ferrier (1843–1928), who suggeste ...
PDF - Folia Biologica
PDF - Folia Biologica

... electrophysiological properties have been described by Wang et al. (2004). MCs are GABAergic and belong to the group of SOM-positive neurons. SOM is expressed by all MCs regardless of their morphological and electrophysiological differences. In 50 % of MCs SOM is the solely expressed peptide and in ...
Preferential Origin and Layer Destination of GAD65
Preferential Origin and Layer Destination of GAD65

... expressing GAD65-GFP, 37 embryos from embryonic day (E) 14 (n = 9), E15 (n = 9), E16 (n = 10) and E18 (n = 9), and 7 animals at P6 (n = 3) and P21 (n = 4) were used for immunohistochemical analysis. Fetuses at each developmental stage were collected by caesarean section after cervical dislocation of ...
Evernote Questions
Evernote Questions

... 6. A neuron will generate action potentials more often when it: A) remains below its threshold. B) receives an excitatory input. C) receives more excitatory than inhibitory inputs. D) is stimulated by a neurotransmitter. Page 1 ...
document
document

... •The size and shape of the pupil should be recorded at rest. Under normal conditions, the pupil constricts in response to light. Note the direct response, meaning constriction of the illuminated pupil, as well as the consensual response, meaning constriction of the opposite pupil. •Test the pupillar ...
Unit 2 Multiple Choice test Name
Unit 2 Multiple Choice test Name

... B) antagonists C) endorphins D) endocrines E) autonomics 10. What are the molecules that are similar enough to a neurotransmitter to bind to its receptor sites on a dendrite and mimic that neurotransmitter's effects called? A) agonists B) antagonists C) endorphins D) endocrines E) action potentials ...
The Evolution of Reentrance in the Vertebrate Brain
The Evolution of Reentrance in the Vertebrate Brain

... structure is unmistakably much less differentiated than mammalian forms. Furthermore, even the brain stem is much less differentiated than the mammalian brain stem: even the basic structure of nuclei associated with major nerve fiber inputs, and fiber tracts interconnecting those nuclei with higher ...
Excitatory and Inhibitory Synaptic Placement and Functional
Excitatory and Inhibitory Synaptic Placement and Functional

... dendritic shaft (Megias et al. 2001; Parnavelas et al. 1977), this is generally not the case. Given that the vast majority of spines, with the exception of some very thin spines (about 2–4 % of total cortical spines) (Arellano et al. 2007; Hersch and White 1981; White and Rock 1980), have a single t ...
SEGMENT- SPECIFIC DIFFERENCES IN THE H CELL
SEGMENT- SPECIFIC DIFFERENCES IN THE H CELL

... process which only branches in the median fiber tract (Fig. 4). Physiological transformation. In T3, the H cell acquires the ability to generate Na+-dependent action potentials in its axons and shortly thereafter to generate (Na+-Ca2’)-dependent action potentials in its soma Al (Goodman and Spitzer, ...
Cell Body - Cloudfront.net
Cell Body - Cloudfront.net

... Figure 7.22b ...
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Feature detection (nervous system)

Feature detection is a process by which the nervous system sorts or filters complex natural stimuli in order to extract behaviorally relevant cues that have a high probability of being associated with important objects or organisms in their environment, as opposed to irrelevant background or noise. Feature detectors are individual neurons – or groups of neurons – in the brain which code for perceptually significant stimuli. Early in the sensory pathway feature detectors tend to have simple properties; later they become more and more complex as the features to which they respond become more and more specific. For example, simple cells in the visual cortex of the domestic cat (Felis catus), respond to edges – a feature which is more likely to occur in objects and organisms in the environment. By contrast, the background of a natural visual environment tends to be noisy – emphasizing high spatial frequencies but lacking in extended edges. Responding selectively to an extended edge – either a bright line on a dark background, or the reverse – highlights objects that are near or very large. Edge detectors are useful to a cat, because edges do not occur often in the background “noise” of the visual environment, which is of little consequence to the animal.
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