Viral vector-based tools advance knowledge of basal ganglia
... adeno-associated virus; lentivirus; basal ganglia neuronal phenotypes; optogenetics; DREADDs; confocal and electron microscopy ...
... adeno-associated virus; lentivirus; basal ganglia neuronal phenotypes; optogenetics; DREADDs; confocal and electron microscopy ...
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... human brain is still largely unknown. This thesis is an attempt towards creating a developmental model of the stereo vision in the visual cortex. By developmental we mean that the features of each neuron are developed, instead of hand-crafted, so that the limited resource is optimally used. This app ...
... human brain is still largely unknown. This thesis is an attempt towards creating a developmental model of the stereo vision in the visual cortex. By developmental we mean that the features of each neuron are developed, instead of hand-crafted, so that the limited resource is optimally used. This app ...
Use of an Amino-Cupric-Silver Technique for the Detection of Early
... cupric-silver method. The advantages and disadvantages of the current method in comparison with other means of neurotoxic assessment are discussed in detail, with special emphasis on its unique ability to discriminate irreversible degenerative phenomena and degeneration of axonal components in cases ...
... cupric-silver method. The advantages and disadvantages of the current method in comparison with other means of neurotoxic assessment are discussed in detail, with special emphasis on its unique ability to discriminate irreversible degenerative phenomena and degeneration of axonal components in cases ...
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... indirect, methods to measure dopamine concentration in the striatum. By contrast, many other studies track the firing of dopaminergic neurons by recording electrical activity in the midbrain, where the cell bodies lie (Fig. 1a). Such recordings from rats running through mazes have yet to be reported ...
... indirect, methods to measure dopamine concentration in the striatum. By contrast, many other studies track the firing of dopaminergic neurons by recording electrical activity in the midbrain, where the cell bodies lie (Fig. 1a). Such recordings from rats running through mazes have yet to be reported ...
projecting to oculomotor regions of the pons Activity of monkey
... during, and after saccades made within a restricted movement field. 4. The activity of identified corticopontine neurons was very similar to the activity of neurons antidromically excited from the superior colliculus where 59% had movement related activity, and 22% had fovea1 and fixation related ac ...
... during, and after saccades made within a restricted movement field. 4. The activity of identified corticopontine neurons was very similar to the activity of neurons antidromically excited from the superior colliculus where 59% had movement related activity, and 22% had fovea1 and fixation related ac ...
Magnetoencephalographic Investigation of Human Cortical Area V1
... motion information (for reviews of MEG, see Hämäläinen et al., 1993; Harding, 1993). MEG cannot be used to measure the spatio-temporal selectivity of individual neurons, but rather measures activity generated by a population of cortical neurons. To establish the selectivity of individual units wo ...
... motion information (for reviews of MEG, see Hämäläinen et al., 1993; Harding, 1993). MEG cannot be used to measure the spatio-temporal selectivity of individual neurons, but rather measures activity generated by a population of cortical neurons. To establish the selectivity of individual units wo ...
Classification using sparse representations
... Initially the values of y are all set to zero, although random initialisation of the prediction node activations can also be used with little influence on the results. Equations 1 and 2 are then iteratively updated with the new values of y calculated by equation 2 substituted into equations 1 and 2 ...
... Initially the values of y are all set to zero, although random initialisation of the prediction node activations can also be used with little influence on the results. Equations 1 and 2 are then iteratively updated with the new values of y calculated by equation 2 substituted into equations 1 and 2 ...
The Roles of Dopamine - ETH E
... cortical target areas are often increased (Schultz, 1998). Both findings are not necessarily inconsistent since small differences in firing rates of dopamine neurons are hard to detect with single neuron recordings, and measurement methods for dopamine concentration have usually less temporal resolu ...
... cortical target areas are often increased (Schultz, 1998). Both findings are not necessarily inconsistent since small differences in firing rates of dopamine neurons are hard to detect with single neuron recordings, and measurement methods for dopamine concentration have usually less temporal resolu ...
Morphology of GABAergic Neurons in the Inferior Colliculus of the Cat
... are shown (Fig. 5: 10, 43, 52, 53). Some smaller GADDistribution of GABAergic Cells in the IC positive neurons were included for comparison (Fig. 5: 6, GABAergic neurons were found in every subdivision of 24,55, 71). When the relative sizes of the GABA-positive neurons the IC. The distribution of GA ...
... are shown (Fig. 5: 10, 43, 52, 53). Some smaller GADDistribution of GABAergic Cells in the IC positive neurons were included for comparison (Fig. 5: 6, GABAergic neurons were found in every subdivision of 24,55, 71). When the relative sizes of the GABA-positive neurons the IC. The distribution of GA ...
contextual influences on visual processing
... With the development of techniques for recording neuronal action potentials and the subsequent application of these techniques to the study of the mammalian visual system, the field of visual science underwent a paradigm shift. Fundamental to the conduct and interpretation of neurophysiological expe ...
... With the development of techniques for recording neuronal action potentials and the subsequent application of these techniques to the study of the mammalian visual system, the field of visual science underwent a paradigm shift. Fundamental to the conduct and interpretation of neurophysiological expe ...
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... effector tools (Ray et al., 2011; Brust et al., 2014; Niederkofler et al., 2016). Here, we apply these tools to characterize the function and projections of Tac1-Pet1 neurons. Studies have linked the control of breathing to 5-HT, substance P, its receptor, the neurokinin-1 receptor (NK1R), and medul ...
... effector tools (Ray et al., 2011; Brust et al., 2014; Niederkofler et al., 2016). Here, we apply these tools to characterize the function and projections of Tac1-Pet1 neurons. Studies have linked the control of breathing to 5-HT, substance P, its receptor, the neurokinin-1 receptor (NK1R), and medul ...
NETMORPH: A Framework for the Stochastic
... individual growth cone. The various actions of the growth cone, such as elongation, branching and turning, are described as outcomes of stochastic processes that capture in a phenomenological manner the processes involved in neurite outgrowth. This description includes the influence on outgrowth of ...
... individual growth cone. The various actions of the growth cone, such as elongation, branching and turning, are described as outcomes of stochastic processes that capture in a phenomenological manner the processes involved in neurite outgrowth. This description includes the influence on outgrowth of ...
Representation of Behavioral Tactics and Tactics
... Figure 3. Time-dependent plots of neuronal selectivity for the tactics and action under the three behavioral conditions (data are supplementary motor area (SMA). In both for the same neuron shown in Fig. 2A). The time courses of tactics (green) and action (red) selectivity were computed consecutivel ...
... Figure 3. Time-dependent plots of neuronal selectivity for the tactics and action under the three behavioral conditions (data are supplementary motor area (SMA). In both for the same neuron shown in Fig. 2A). The time courses of tactics (green) and action (red) selectivity were computed consecutivel ...
Location of the polysensory zone in the precentral gyrus
... 1999). Almost all of these sensory responses emphasize the space on or near the monkey’s body. The bimodal, visual-tactile neurons respond to a touch on the arm or face and also to the sight of objects in the space near the tactile receptive field, within about 20 cm (Rizzolatti et al. 1981; Gentilu ...
... 1999). Almost all of these sensory responses emphasize the space on or near the monkey’s body. The bimodal, visual-tactile neurons respond to a touch on the arm or face and also to the sight of objects in the space near the tactile receptive field, within about 20 cm (Rizzolatti et al. 1981; Gentilu ...
embryonic development of the leech nervous system
... Stage 9 of development begins with completion of the formation of the germinal plate. During this stage, the germinal plate becomes partitioned into a series of tissue blocks that correspond to the future body segments. Segmentation begins anteriorly and gradually progresses to the posterior of the ...
... Stage 9 of development begins with completion of the formation of the germinal plate. During this stage, the germinal plate becomes partitioned into a series of tissue blocks that correspond to the future body segments. Segmentation begins anteriorly and gradually progresses to the posterior of the ...
Coincidence Detection or Temporal Integration?
... In cats, SII cortex receives direct projections from the ventrobasal complex (Spreafico et al., 1981; Burton and Kopf, 1984). We recorded neurons in SII cortex instead of primary somatosensory (SI) cortex because receptive fields in SII cortex are larger, and this increased the probability of encoun ...
... In cats, SII cortex receives direct projections from the ventrobasal complex (Spreafico et al., 1981; Burton and Kopf, 1984). We recorded neurons in SII cortex instead of primary somatosensory (SI) cortex because receptive fields in SII cortex are larger, and this increased the probability of encoun ...
Extraction of Sensory Parameters from a Neural Map by Primary
... Several figures show directional tuning curves for afferents and /or interneurons. In this study, only the shapes of the tuning curves are relevant and not their absolute amplitudes. All tuning curves shown in these figures were derived from experimental measurements published earlier, as follows. A ...
... Several figures show directional tuning curves for afferents and /or interneurons. In this study, only the shapes of the tuning curves are relevant and not their absolute amplitudes. All tuning curves shown in these figures were derived from experimental measurements published earlier, as follows. A ...
Septins promote dendrite and axon development by negatively
... a phenotype that is otherwise masked. A reasonable strategy would be to probe neuritogenesis in the developing brain via the local depletion of SEPT7 on the basis of the following evidence obtained in vitro: First, acute depletion of SEPT7 via RNA interference (RNAi) causes collateral destabilizatio ...
... a phenotype that is otherwise masked. A reasonable strategy would be to probe neuritogenesis in the developing brain via the local depletion of SEPT7 on the basis of the following evidence obtained in vitro: First, acute depletion of SEPT7 via RNA interference (RNAi) causes collateral destabilizatio ...
Temporal and spatial neural dynamics in the perception of basic
... other regions it is firing with, as well as by the specific time-range at which they connect and synchronize. Therefore, the neural network involved in emotion processing could, in principle, overlap spatially across emotions, being the unique temporal profile of connectivity and synchrony the criti ...
... other regions it is firing with, as well as by the specific time-range at which they connect and synchronize. Therefore, the neural network involved in emotion processing could, in principle, overlap spatially across emotions, being the unique temporal profile of connectivity and synchrony the criti ...