(jns-object). - The Computational Neurobiology Laboratory
... active limb movement, many sensory receptors or muscles are involved, but the actual degrees of freedom are low because of geometric constraints in the physical world. For example, as illustrated in Figure 1, the rotation of an object alters many visual cues. How these cues vary in time is not arbit ...
... active limb movement, many sensory receptors or muscles are involved, but the actual degrees of freedom are low because of geometric constraints in the physical world. For example, as illustrated in Figure 1, the rotation of an object alters many visual cues. How these cues vary in time is not arbit ...
Mapping Pavlovian Conditioning Effects on the Brain: Blocking
... alternatively assign them to the three groups. This was done to obviate any group differences in individual water consumption prior to formal training (Table 1). During the course of the experiments, several subjects were lost to difficulties in tissue processing and data acquisition. This resulted ...
... alternatively assign them to the three groups. This was done to obviate any group differences in individual water consumption prior to formal training (Table 1). During the course of the experiments, several subjects were lost to difficulties in tissue processing and data acquisition. This resulted ...
Cerebellar fastigial nucleus: from anatomic construction to
... Fastigial nucleus (FN) is the phylogenetically oldest nucleus in the cerebellum, a classical subcortical motor coordinator. As one of the ultimate integration stations and outputs of the spinocerebellum, the FN holds a key position in the axial, proximal and ocular motor control by projecting to the ...
... Fastigial nucleus (FN) is the phylogenetically oldest nucleus in the cerebellum, a classical subcortical motor coordinator. As one of the ultimate integration stations and outputs of the spinocerebellum, the FN holds a key position in the axial, proximal and ocular motor control by projecting to the ...
Zhang Yufeng - USD Biology
... in the SDR condition, although there was no significant difference in the food trials. • Decrease over time in the number of total trials shown by the significant main effect of Time in both food and water trials in the LDR condition ...
... in the SDR condition, although there was no significant difference in the food trials. • Decrease over time in the number of total trials shown by the significant main effect of Time in both food and water trials in the LDR condition ...
The GABAergic system in schizophrenia
... further hypofunctioning of the glutamatergic system through feedback mechanisms. Several classes of compounds, including benzodiazepines (BZD), muscurinic receptor antagonist and haloperidol, blocked NMDAinduced neurotoxicity in the posterior cingulate and retrospenial regions of experimental animal ...
... further hypofunctioning of the glutamatergic system through feedback mechanisms. Several classes of compounds, including benzodiazepines (BZD), muscurinic receptor antagonist and haloperidol, blocked NMDAinduced neurotoxicity in the posterior cingulate and retrospenial regions of experimental animal ...
optimal feedback control and the neural basis of volitional motor
... controllers correct variations (errors) if they influence the goal of the task; otherwise, they are ignored. Optimal state estimation is created by combining feedback signals and efferent copy of motor commands. The latter uses a forward internal model to convert motor commands to state variables. A ...
... controllers correct variations (errors) if they influence the goal of the task; otherwise, they are ignored. Optimal state estimation is created by combining feedback signals and efferent copy of motor commands. The latter uses a forward internal model to convert motor commands to state variables. A ...
full text - TReAD Lab
... of the STN induces both motor and reward-related activity [28] and no differences in reward-related firing have been observed between the medial and lateral STN in rodents [9]. While findings from animal models may be ambiguous, clinical evidence from individuals receiving therapeutic STN DBS suppor ...
... of the STN induces both motor and reward-related activity [28] and no differences in reward-related firing have been observed between the medial and lateral STN in rodents [9]. While findings from animal models may be ambiguous, clinical evidence from individuals receiving therapeutic STN DBS suppor ...
View/Open - DukeSpace
... corresponds roughly to a zone (F7) delineated by Matelli, Luppino, and Rizzolatti using cytoarchitectonics, ...
... corresponds roughly to a zone (F7) delineated by Matelli, Luppino, and Rizzolatti using cytoarchitectonics, ...
Genetic dissection of neural circuits underlying sexually dimorphic
... behaviours in females and males, raising the issue of how neurons in these areas control distinct behaviours in the two sexes. A related issue is that the molecular identity of neurons in these functionally and molecularly heterogeneous brain regions is largely unknown. Recent molecular genetic stud ...
... behaviours in females and males, raising the issue of how neurons in these areas control distinct behaviours in the two sexes. A related issue is that the molecular identity of neurons in these functionally and molecularly heterogeneous brain regions is largely unknown. Recent molecular genetic stud ...
Tactile orientation perception: an ideal observer analysis of human
... sensitive to low-frequency vibration, are distributed with even higher density than the SA1 afferents but have relatively poor spatial resolution and may, in fact, impede spatial perception (Bensmaia et al. 2006). Although SA1 afferents, as a population, carry the fine spatial information needed for ...
... sensitive to low-frequency vibration, are distributed with even higher density than the SA1 afferents but have relatively poor spatial resolution and may, in fact, impede spatial perception (Bensmaia et al. 2006). Although SA1 afferents, as a population, carry the fine spatial information needed for ...
C:\Vision\15Higher level Pt 2.wpd
... 1.2.3 on the phylogeny of vision. This material highlights the fact that a selection of primates can no longer be used in research related to the maximum performance of the human visual system. The system contains components and circuits that are either rudimentary or absent in these lower species. ...
... 1.2.3 on the phylogeny of vision. This material highlights the fact that a selection of primates can no longer be used in research related to the maximum performance of the human visual system. The system contains components and circuits that are either rudimentary or absent in these lower species. ...
Molecular Mechanisms of Signal Integration in Hypothalamic
... Neurons processing multiple signals must possess flexibility in their signalling mechanism so that they can produce an integrated response. In principle, the signalling potential of a neuron containing several transmitters may be affected by the concentration ratio of co-released factors (FischerCol ...
... Neurons processing multiple signals must possess flexibility in their signalling mechanism so that they can produce an integrated response. In principle, the signalling potential of a neuron containing several transmitters may be affected by the concentration ratio of co-released factors (FischerCol ...
Functional Dissociation of Attentional Selection within PFC
... acquired using the BOLD technique (TR = 2500 ms, TE = 40 ms, flip angle = 90°), each consisting of 20 contiguous axial slices (matrix = 64 3 64, inplane resolution = 3.75 3 3.75 mm2, thickness = 6 mm, gap = 0.9 mm), parallel to the anterior commissure-posterior commissure line. Prior to the EPI image ...
... acquired using the BOLD technique (TR = 2500 ms, TE = 40 ms, flip angle = 90°), each consisting of 20 contiguous axial slices (matrix = 64 3 64, inplane resolution = 3.75 3 3.75 mm2, thickness = 6 mm, gap = 0.9 mm), parallel to the anterior commissure-posterior commissure line. Prior to the EPI image ...
Dynamics of spontaneous activity in the cerebral cortex across brain states
... d’aquesta tesi per mitjà del servei TDX (www.tdx.cat) i a través del Dipòsit Digital de la UB (diposit.ub.edu) ha estat autoritzada pels titulars dels drets de propietat intel·lectual únicament per a usos privats emmarcats en activitats d’investigació i docència. No s’autoritza la seva reproducció a ...
... d’aquesta tesi per mitjà del servei TDX (www.tdx.cat) i a través del Dipòsit Digital de la UB (diposit.ub.edu) ha estat autoritzada pels titulars dels drets de propietat intel·lectual únicament per a usos privats emmarcats en activitats d’investigació i docència. No s’autoritza la seva reproducció a ...
Csercsa Richárd
... the nervous system. According to our present knowledge, sleep is far too complex to be regarded as a passive state. There are indeed chemical substances that induce sleep such as sedatives or cytokines (e.g. TNF and IL-1) (Krueger et al., Nat Rev Neurosci, 2008), supporting the active hypothesis. On ...
... the nervous system. According to our present knowledge, sleep is far too complex to be regarded as a passive state. There are indeed chemical substances that induce sleep such as sedatives or cytokines (e.g. TNF and IL-1) (Krueger et al., Nat Rev Neurosci, 2008), supporting the active hypothesis. On ...
Introduction 9 INTRODUCTION Circadian rhythms in physiology and
... is located in the suprachiasmatic nuclei (SCN) at the base of the hypothalamus. First indications were provided in 1972, when it was shown that lesions of the SCN abolish the adrenal corticosterone rhythm, as well as rhythms in drinking and locomotor activity. In 1990, it was demonstrated that trans ...
... is located in the suprachiasmatic nuclei (SCN) at the base of the hypothalamus. First indications were provided in 1972, when it was shown that lesions of the SCN abolish the adrenal corticosterone rhythm, as well as rhythms in drinking and locomotor activity. In 1990, it was demonstrated that trans ...
Brca1 is required for embryonic development of the mouse cerebral
... To examine the effects of conditional Brca1 ablation on the neocortex, we first analyzed the size and gross morphology of the P4.5 brain. Compared with the control, Brca1-ablated brains showed a reduction in size specific to the cerebral cortex (Fig. 1C). The whole-brain weight of Brca1-ablated mice ...
... To examine the effects of conditional Brca1 ablation on the neocortex, we first analyzed the size and gross morphology of the P4.5 brain. Compared with the control, Brca1-ablated brains showed a reduction in size specific to the cerebral cortex (Fig. 1C). The whole-brain weight of Brca1-ablated mice ...
Selectivity and Tolerance - Penn Arts and Sciences
... original image and then generates a scrambled image by repeatedly forcing a new image (initially filled with Gaussian white noise) to match these parameters. The parameters are all obtained by averaging local measurements across all spatial positions within the original image and are thus altogether ...
... original image and then generates a scrambled image by repeatedly forcing a new image (initially filled with Gaussian white noise) to match these parameters. The parameters are all obtained by averaging local measurements across all spatial positions within the original image and are thus altogether ...
Selectivity and Tolerance - Center for Neural Science
... original image and then generates a scrambled image by repeatedly forcing a new image (initially filled with Gaussian white noise) to match these parameters. The parameters are all obtained by averaging local measurements across all spatial positions within the original image and are thus altogether ...
... original image and then generates a scrambled image by repeatedly forcing a new image (initially filled with Gaussian white noise) to match these parameters. The parameters are all obtained by averaging local measurements across all spatial positions within the original image and are thus altogether ...
KIDS, Inc. - School Neuropsych
... KIDS, Inc.’s School Neuropsychology Post-Graduate Certification Program or the School Neuropsychology Alumni Connection Blackboard™ site without the express written consent from KIDS, Inc. ...
... KIDS, Inc.’s School Neuropsychology Post-Graduate Certification Program or the School Neuropsychology Alumni Connection Blackboard™ site without the express written consent from KIDS, Inc. ...
Slides - Translational Neuromodeling Unit
... Summary Overview 1. MRI measures the decay of magnetization of protons which depends on tissue properties. 2. fMRI measures changes in magnetic properties due to the ratio of oxy- vs. deoxy-hemoglobin in cerebral blood. 3. The BOLD signal is locally best correlated to the local field potential, whi ...
... Summary Overview 1. MRI measures the decay of magnetization of protons which depends on tissue properties. 2. fMRI measures changes in magnetic properties due to the ratio of oxy- vs. deoxy-hemoglobin in cerebral blood. 3. The BOLD signal is locally best correlated to the local field potential, whi ...
Structure-function relationship in hierarchical model of brain networks
... The mammalian brain is, with its numerous neural elements and structured complex connectivity, one of the most complex systems in nature. Recently, large-scale corticocortical connectivities, both structural and functional, have received a great deal of research attention, especially using the appro ...
... The mammalian brain is, with its numerous neural elements and structured complex connectivity, one of the most complex systems in nature. Recently, large-scale corticocortical connectivities, both structural and functional, have received a great deal of research attention, especially using the appro ...
Noradrenergic Suppression of Synaptic Transmission May Influence Cortical Signal-to-Noise Ratio
... and receives input from the same five interneurons [via fast (80%) and slow (20%) synapses]. Feedback interneurons make feedback inhibitory connections among each other (via fast synapses). A number of differences have been described between superficial and deep pyramidal cells in the piriform corte ...
... and receives input from the same five interneurons [via fast (80%) and slow (20%) synapses]. Feedback interneurons make feedback inhibitory connections among each other (via fast synapses). A number of differences have been described between superficial and deep pyramidal cells in the piriform corte ...
Selective attention through selective neuronal synchronization
... by instructional cues defining relevant and irrelevant sensory features of the input stream during task performance. In typical paradigms of selective attention, the sensory input is kept identical across trials with variations only in covert attention to different aspects of that input. In such tas ...
... by instructional cues defining relevant and irrelevant sensory features of the input stream during task performance. In typical paradigms of selective attention, the sensory input is kept identical across trials with variations only in covert attention to different aspects of that input. In such tas ...
Complete morphologies of basal forebrain cholinergic neurons in
... extensive networks. Each neuron consists of a number of components: a cell body, which contains the nucleus; numerous short protrusions from the cell body called dendrites; and a long thin structure called an axon that carries the electrical signals generated in the cell body and the dendrites to th ...
... extensive networks. Each neuron consists of a number of components: a cell body, which contains the nucleus; numerous short protrusions from the cell body called dendrites; and a long thin structure called an axon that carries the electrical signals generated in the cell body and the dendrites to th ...
Neural correlates of consciousness
The neural correlates of consciousness (NCC) constitute the minimal set of neuronal events and mechanisms sufficient for a specific conscious percept. Neuroscientists use empirical approaches to discover neural correlates of subjective phenomena. The set should be minimal because, under the assumption that the brain is sufficient to give rise to any given conscious experience, the question is which of its components is necessary to produce it.