disparity detection from stereo
... type or error-back propagation type. There has been no biological evidence to support error back-propagation, but the Hebbian type of learning has been supported by the Spike-time dependent plasticity (STDP) [7]. SOM type of networks that use both top-down and bottom-up inputs has not be studied unt ...
... type or error-back propagation type. There has been no biological evidence to support error back-propagation, but the Hebbian type of learning has been supported by the Spike-time dependent plasticity (STDP) [7]. SOM type of networks that use both top-down and bottom-up inputs has not be studied unt ...
Enhanced cholinergic suppression of previously strengthened synapses enables the formation of
... storage process have shown that the memory capacity of a realistic cortical network can be greatly enhanced if cholinergic modulation blocks transmission at synaptic connections of the association fibers during the learning process. We here present experimental data from an olfactory cortex brain sli ...
... storage process have shown that the memory capacity of a realistic cortical network can be greatly enhanced if cholinergic modulation blocks transmission at synaptic connections of the association fibers during the learning process. We here present experimental data from an olfactory cortex brain sli ...
An ontology-based search engine for digital
... describing laminar depth typically referring to cytoarchitecture and microcircuitry (e.g., layer 5b). The logical relationships among hierarchies within and across metadata domains are described in Sect. 2.2. Every hierarchy is composed of a set of nodes corresponding to unique concepts. When multip ...
... describing laminar depth typically referring to cytoarchitecture and microcircuitry (e.g., layer 5b). The logical relationships among hierarchies within and across metadata domains are described in Sect. 2.2. Every hierarchy is composed of a set of nodes corresponding to unique concepts. When multip ...
The mirror neuron system and the consequences of its dysfunction
... other people1,2. Despite its central role in both learning and social cognition, until recently imitation had been studied almost exclusively by social scientists (BOX 1), and our knowledge of the neural mechanisms of imitation was limited. The recent discovery of mirror neurons3 — premotor and pari ...
... other people1,2. Despite its central role in both learning and social cognition, until recently imitation had been studied almost exclusively by social scientists (BOX 1), and our knowledge of the neural mechanisms of imitation was limited. The recent discovery of mirror neurons3 — premotor and pari ...
Strategies for the Generation of Neuronal Diversity in the
... zebrafish carrying the cyclops mutation, in which the floor plate is absent (Hatta, 1991, 1992), and motor neurons arise in the chick after partial notochord ablations, in regions lacking a floor plate (Artinger and Bronner-Fraser, 1993a). In view of these findings, it seems reasonable to conclude t ...
... zebrafish carrying the cyclops mutation, in which the floor plate is absent (Hatta, 1991, 1992), and motor neurons arise in the chick after partial notochord ablations, in regions lacking a floor plate (Artinger and Bronner-Fraser, 1993a). In view of these findings, it seems reasonable to conclude t ...
The elephant brain in numbers
... to great apes is at odds with the greater behavioral flexibility and cognitive abilities of the latter (Deaner et al., 2007). ...
... to great apes is at odds with the greater behavioral flexibility and cognitive abilities of the latter (Deaner et al., 2007). ...
Title - HAL
... neuronal group. They describe the relationships between the branches and their topological (the order) and metrical distances to soma. They were the numbers of parent and terminal branches per order, the branching frequency per order, the average length per order of parent and terminal branches resp ...
... neuronal group. They describe the relationships between the branches and their topological (the order) and metrical distances to soma. They were the numbers of parent and terminal branches per order, the branching frequency per order, the average length per order of parent and terminal branches resp ...
Intracellular and computational evidence for a
... low levels of spontaneous activity reported in some experiments (such as [30]). Because of the dense recurrent connectivity in cortex, such low-level spontaneous activity can still be associated with highly active subthreshold membrane potential dynamics, as indeed found intracellularly in awake ani ...
... low levels of spontaneous activity reported in some experiments (such as [30]). Because of the dense recurrent connectivity in cortex, such low-level spontaneous activity can still be associated with highly active subthreshold membrane potential dynamics, as indeed found intracellularly in awake ani ...
consciousness as an afterthought
... Between the domains of these two approaches lies an explanatory gap. This essay addresses that gap from many perspectives. The details of top-down and bottom-up scientific data and concepts are necessary but not sufficient to characterize consciousness. That characterization may require a bridge bet ...
... Between the domains of these two approaches lies an explanatory gap. This essay addresses that gap from many perspectives. The details of top-down and bottom-up scientific data and concepts are necessary but not sufficient to characterize consciousness. That characterization may require a bridge bet ...
Structural and Functional areas of the Medulla Oblongata
... behavioral patterns related to rage, aggression, pain, pleasure, and behavioral patterns related to ...
... behavioral patterns related to rage, aggression, pain, pleasure, and behavioral patterns related to ...
Connectivity and circuitry in a dish versus in a brain
... In order to understand and find therapeutic strategies for neurological disorders, disease models that recapitulate the connectivity and circuitry of patients’ brain are needed. Owing to many limitations of animal disease models, in vitro neuronal models using patient-derived stem cells are currentl ...
... In order to understand and find therapeutic strategies for neurological disorders, disease models that recapitulate the connectivity and circuitry of patients’ brain are needed. Owing to many limitations of animal disease models, in vitro neuronal models using patient-derived stem cells are currentl ...
Document
... Spinal cord is segmented anatomically Input and output occurs in groups of rootlets arranged in a series longitudinally along the cord ...
... Spinal cord is segmented anatomically Input and output occurs in groups of rootlets arranged in a series longitudinally along the cord ...
Molecular and Cellular aspects of a Sacred Disease `Epilepsy`
... any disturbance in normal cerebrocortical function can induce seizure (Meldrum, 1994). At resting state, the inside of cell is more negative then outside and the neuron is said to be polarized. It is a resting membrane potential with -70mV and is maintained by complex phenomenon, as the plasma membr ...
... any disturbance in normal cerebrocortical function can induce seizure (Meldrum, 1994). At resting state, the inside of cell is more negative then outside and the neuron is said to be polarized. It is a resting membrane potential with -70mV and is maintained by complex phenomenon, as the plasma membr ...
The auditory pathway: Levels of integration of information and
... Although the ascending (afferent) AP is better known, the ear has a descending (efferent) pathway as well, with neurons running parallel to the former. Even though little is known about this pathway, it is deemed to regulate the AC function with the lower auditory centers and Corti’s organ. The effe ...
... Although the ascending (afferent) AP is better known, the ear has a descending (efferent) pathway as well, with neurons running parallel to the former. Even though little is known about this pathway, it is deemed to regulate the AC function with the lower auditory centers and Corti’s organ. The effe ...
Dear Notetaker:
... 1. The ventral pathway is so concerned about detection, recognition, and memory, that the location of the object is lost. The technical way to say this is “there is increasingly less retinotopic organization” in post-V1 areas. a. “Retinotopic organization” means that parts of the visual world that a ...
... 1. The ventral pathway is so concerned about detection, recognition, and memory, that the location of the object is lost. The technical way to say this is “there is increasingly less retinotopic organization” in post-V1 areas. a. “Retinotopic organization” means that parts of the visual world that a ...
Tracking Whole-Brain Connectivity Dynamics in the Resting State
... mm × 4.55 mm. Resting-state scans were a minimum of 5 min, 4 s in duration (152 volumes); any additional volumes were discarded to match data quantity across participants. Subjects were instructed to keep their eyes open during the scan and fixate on a foveally presented cross. Functional images were ...
... mm × 4.55 mm. Resting-state scans were a minimum of 5 min, 4 s in duration (152 volumes); any additional volumes were discarded to match data quantity across participants. Subjects were instructed to keep their eyes open during the scan and fixate on a foveally presented cross. Functional images were ...
Conversion of Mouse and Human Fibroblasts into Functional Spinal
... (Isl1 omitted). We found that iMNs were comparable in cell body size and projection length to both E13.5 embryo- and ESC-derived motor neuron controls (Figure S2A). To determine how similar overall transcription in iMNs was to control motor neurons, we isolated the three motor neuron types by fluore ...
... (Isl1 omitted). We found that iMNs were comparable in cell body size and projection length to both E13.5 embryo- and ESC-derived motor neuron controls (Figure S2A). To determine how similar overall transcription in iMNs was to control motor neurons, we isolated the three motor neuron types by fluore ...
PDF file
... type or error-back propagation type. There has been no biological evidence to support error back-propagation, but the Hebbian type of learning has been supported by the Spike-time dependent plasticity (STDP) [7]. SOM type of networks that use both top-down and bottom-up inputs has not be studied unt ...
... type or error-back propagation type. There has been no biological evidence to support error back-propagation, but the Hebbian type of learning has been supported by the Spike-time dependent plasticity (STDP) [7]. SOM type of networks that use both top-down and bottom-up inputs has not be studied unt ...
Cerebellar Control of Defense Reactions under Orexin
... Abstract: Recent evidence has indicated that, when an animal is exposed to harmful stimuli, hypothalamic orexinergic neurons are activated via the amygdala and in turn tune the neuronal circuits in the spinal cord, brainstem, and an area of the cerebellum (folium-p of the flocculus) by neuromodulati ...
... Abstract: Recent evidence has indicated that, when an animal is exposed to harmful stimuli, hypothalamic orexinergic neurons are activated via the amygdala and in turn tune the neuronal circuits in the spinal cord, brainstem, and an area of the cerebellum (folium-p of the flocculus) by neuromodulati ...
Ch19 Lecture
... extinction is due to new learning. However, by degrading these nets the infant state can be reinstated and extinction training can again erase the fear memory. ...
... extinction is due to new learning. However, by degrading these nets the infant state can be reinstated and extinction training can again erase the fear memory. ...
pdf file. - Harvard Vision Lab
... activity in the trials without a probe (not shown). Inactivating the corollary discharge pathway through the MD therefore caused a marked reduction in the ability of this neuron to shift its RF. Because the SC–MD–FEF pathway on each side of the brain represents only contraversive saccades10, a furth ...
... activity in the trials without a probe (not shown). Inactivating the corollary discharge pathway through the MD therefore caused a marked reduction in the ability of this neuron to shift its RF. Because the SC–MD–FEF pathway on each side of the brain represents only contraversive saccades10, a furth ...
State-Dependent Computation Using Coupled Recurrent Networks
... Mahowald, & Hepp, 1999; Maass, 2000), and so offers a form of signal restoration between computational stages sought by von Neumann (1958) in his early explorations of brainlike principles of computation. In theoretical models, the neurons that compose a winner-take-all (WTA) network are usually org ...
... Mahowald, & Hepp, 1999; Maass, 2000), and so offers a form of signal restoration between computational stages sought by von Neumann (1958) in his early explorations of brainlike principles of computation. In theoretical models, the neurons that compose a winner-take-all (WTA) network are usually org ...
