TREBALL 6
... Data analysis Changes in firing rate of DA neurons were assessed using repeated measures ANOVA and post-hoc t-tests. These values were quantified by averaging the values each minute after local or i.v. administration (omitting the first minute). Microdialysis results are expressed as fmol/fraction ( ...
... Data analysis Changes in firing rate of DA neurons were assessed using repeated measures ANOVA and post-hoc t-tests. These values were quantified by averaging the values each minute after local or i.v. administration (omitting the first minute). Microdialysis results are expressed as fmol/fraction ( ...
The mirror mechanism: recent findings and perspectives
... code the goal of the motor acts [28]. Evidence supporting this point is provided by neurons that discharge when the monkey grasps an object (e.g. food) with its right hand, left hand and the mouth [7]. It is clear that this type of neural behaviour cannot be explained in terms of movements. Addition ...
... code the goal of the motor acts [28]. Evidence supporting this point is provided by neurons that discharge when the monkey grasps an object (e.g. food) with its right hand, left hand and the mouth [7]. It is clear that this type of neural behaviour cannot be explained in terms of movements. Addition ...
Column-Based Model of Electric Field Excitation of Cerebral Cortex
... injection, tailored to obtain satisfactory coincidence detection rates. A 40-sec scan was triggered as the tracer bolus entered the brain; TMS, sham TMS, or hand movement accompanied this scan segment. A 50-sec scan immediately followed the 40-sec scan, during which TMS, sham TMS or hand movement we ...
... injection, tailored to obtain satisfactory coincidence detection rates. A 40-sec scan was triggered as the tracer bolus entered the brain; TMS, sham TMS, or hand movement accompanied this scan segment. A 50-sec scan immediately followed the 40-sec scan, during which TMS, sham TMS or hand movement we ...
Basis Functions for Object
... (C) Response of a typical cell in the supplementary eye field between the appearance of the target bar and the initiation of the saccade. This cell shows object-centered selectivity because it responds strongly to saccades landing on the right side of the bar, but only weakly to saccades with the sa ...
... (C) Response of a typical cell in the supplementary eye field between the appearance of the target bar and the initiation of the saccade. This cell shows object-centered selectivity because it responds strongly to saccades landing on the right side of the bar, but only weakly to saccades with the sa ...
Extraction of Sensory Parameters from a Neural Map by Primary
... One consequence of this anatomical organization is that the ensemble response of a population of neurons to a particular sensory stimulus will be represented as a unique spatiotemporal pattern of activity within that region of the brain. To understand how these spatiotemporal patterns of activity em ...
... One consequence of this anatomical organization is that the ensemble response of a population of neurons to a particular sensory stimulus will be represented as a unique spatiotemporal pattern of activity within that region of the brain. To understand how these spatiotemporal patterns of activity em ...
Systematic Regional Variations in the Loss of Cortical Cholinergic
... The loss of cortical cholinergic fibers in Alzheimer's disease was investigated using choline acetyltransferase immunohistochemistry and acetylcholinesterase histochemistry. Within both the normal and Alzheimer's cerebral cortex, the two methods revealed an identical pattern of fiber staining. In th ...
... The loss of cortical cholinergic fibers in Alzheimer's disease was investigated using choline acetyltransferase immunohistochemistry and acetylcholinesterase histochemistry. Within both the normal and Alzheimer's cerebral cortex, the two methods revealed an identical pattern of fiber staining. In th ...
Selectivity and Tolerance - Center for Neural Science
... 1a, 2). Both monkeys were trained to initiate each trial by fixating a central red point (0.15°) within a square fixation window that ranged from ⫾0.9° to ⫾1.1° for up to 4 s. Across the repeated presentations of a stimulus recorded from a neuron, deviation of the eye position (measured relative to ...
... 1a, 2). Both monkeys were trained to initiate each trial by fixating a central red point (0.15°) within a square fixation window that ranged from ⫾0.9° to ⫾1.1° for up to 4 s. Across the repeated presentations of a stimulus recorded from a neuron, deviation of the eye position (measured relative to ...
Microstructure of the neocortex: Comparative aspects
... The appearance of the neocortex, its expansion, and its differentiation in mammals, represents one of the principal episodes in the evolution of the vertebrate brain. One of the fundamental questions in neuroscience is what is special about the neocortex of humans and how does it differ from that of ...
... The appearance of the neocortex, its expansion, and its differentiation in mammals, represents one of the principal episodes in the evolution of the vertebrate brain. One of the fundamental questions in neuroscience is what is special about the neocortex of humans and how does it differ from that of ...
Evidence that GABA augmentation of norepinephrine release is mediated by interneurons
... HYP and POA of female rats w4x. The mechanism of this paradoxical effect is unknown. Recently, it has been shown that GABA can depolarize neurons because of the permeability of the GABA A chloride channel to bicarbonate ions; the ensuing depolarization then facilitates NMDA receptor stimulation w16x ...
... HYP and POA of female rats w4x. The mechanism of this paradoxical effect is unknown. Recently, it has been shown that GABA can depolarize neurons because of the permeability of the GABA A chloride channel to bicarbonate ions; the ensuing depolarization then facilitates NMDA receptor stimulation w16x ...
Basal Ganglia and Cerebellar Inputs to `AIP`
... these subcortical systems were a source of input to AIP. For example, perhaps some of the ‘visual’ properties of AIP neurons are the result of input from the superior colliculus. Similarly, some of the ‘motor’ properties of AIP neurons could be a consequence of input from the cerebellum. In addition ...
... these subcortical systems were a source of input to AIP. For example, perhaps some of the ‘visual’ properties of AIP neurons are the result of input from the superior colliculus. Similarly, some of the ‘motor’ properties of AIP neurons could be a consequence of input from the cerebellum. In addition ...
Receptive Fields and Binaural Interactions for Virtual
... of page charges. The article must therefore be hereby marked ‘‘advertisement’’ in accordance with 18 U.S.C. Section 1734 solely to indicate this fact. ...
... of page charges. The article must therefore be hereby marked ‘‘advertisement’’ in accordance with 18 U.S.C. Section 1734 solely to indicate this fact. ...
full text - TReAD Lab
... Circuit: Emerging, Reemerging, and Forgotten Brain Areas”, with the goal of looking beyond the handful of structures that are most commonly associated with reward and motivation. Four small group workshops were held, each one dedicated to a select set of brain regions; the participants shared findin ...
... Circuit: Emerging, Reemerging, and Forgotten Brain Areas”, with the goal of looking beyond the handful of structures that are most commonly associated with reward and motivation. Four small group workshops were held, each one dedicated to a select set of brain regions; the participants shared findin ...
Humphreys (1939b) revisited: Is there a “verbal” PREE?
... extinction persistence did not reflect the PREE and instead demonstrated an undifferentiated and gradual decrease in persistence over extinction trial probes. In a later study (Svartdal & Silvera, 2008, Exp. 2), we actually demonstrated a behavior-cognition dissociation under extinction conditions. ...
... extinction persistence did not reflect the PREE and instead demonstrated an undifferentiated and gradual decrease in persistence over extinction trial probes. In a later study (Svartdal & Silvera, 2008, Exp. 2), we actually demonstrated a behavior-cognition dissociation under extinction conditions. ...
optimal feedback control and the neural basis of volitional motor
... straight trajectories. When a hand-held robot applied loads during reaching, the results were similar24. Many studies have shown that relatively straight hand trajectories are preserved after various perceptual and mechanical perturbations25–28. Although movements are smooth, motor performance shows ...
... straight trajectories. When a hand-held robot applied loads during reaching, the results were similar24. Many studies have shown that relatively straight hand trajectories are preserved after various perceptual and mechanical perturbations25–28. Although movements are smooth, motor performance shows ...
construction of a model demonstrating neural pathways and reflex arcs
... separated into two “systems,” it is important to realize that they are connected to each other. ...
... separated into two “systems,” it is important to realize that they are connected to each other. ...
Development of emotional facial recognition in late
... ruled out the presence of a current and lifetime history of DSM-IV Axis I mental disorders. An abbreviated version of the Wechsler Intelligence Scale for Children (WISC-R) provided an estimate of intelligence for the children and adolescents (Wechsler, 1974). The Wechsler Adult Intelligence Scale (W ...
... ruled out the presence of a current and lifetime history of DSM-IV Axis I mental disorders. An abbreviated version of the Wechsler Intelligence Scale for Children (WISC-R) provided an estimate of intelligence for the children and adolescents (Wechsler, 1974). The Wechsler Adult Intelligence Scale (W ...
The functional role of the parieto-frontal mirror circuit: interpretations
... magnetoencephalography (MeG) studies. brain imaging studies have shown that, as in the monkey, this action observation–action execution mirror circuit is formed by two main regions: the inferior section of the precentral gyrus plus the posterior part of the inferior frontal gyrus; and the inferior p ...
... magnetoencephalography (MeG) studies. brain imaging studies have shown that, as in the monkey, this action observation–action execution mirror circuit is formed by two main regions: the inferior section of the precentral gyrus plus the posterior part of the inferior frontal gyrus; and the inferior p ...
striatum
... Loss of dopaminergic neurons within substantia nigra (pars compacta). L-Dopa will cross BBB (after amination in brain is converted to Dopamin ...
... Loss of dopaminergic neurons within substantia nigra (pars compacta). L-Dopa will cross BBB (after amination in brain is converted to Dopamin ...
Retrieval induces adaptive forgetting of competing memories via
... visual cortical activity when a retrieval cue concurrently elicits multiple visual memories. These studies revealed that pattern classifiers have difficulty discriminating whether a retrieval cue is eliciting a memory of a face or an object when both types of content are associated with it, even whe ...
... visual cortical activity when a retrieval cue concurrently elicits multiple visual memories. These studies revealed that pattern classifiers have difficulty discriminating whether a retrieval cue is eliciting a memory of a face or an object when both types of content are associated with it, even whe ...
Time perception
Time perception is a field of study within psychology and neuroscience that refers to the subjective experience of time, which is measured by someone's own perception of the duration of the indefinite and continuous unfolding of events. The perceived time interval between two successive events is referred to as perceived duration. Another person's perception of time cannot be directly experienced or understood, but it can be objectively studied and inferred through a number of scientific experiments. Time perception is a construction of the brain that is manipulable and distortable under certain circumstances. These temporal illusions help to expose the underlying neural mechanisms of time perception.Pioneering work, emphasizing species-specific differences, was conducted by Karl Ernst von Baer. Experimental work began under the influence of the psycho-physical notions of Gustav Theodor Fechner with studies of the relationship between perceived and measured time.