Dopamine`s Actions in Primate Prefrontal Cortex
... association memories that arise from sequence repetitions. In these more classic forms of plasticity, experiences are stored as architectural changes in synapses, e.g., with the formation of new spines or structural changes in existing immature spines, as documented in the sensory cortices, hippocam ...
... association memories that arise from sequence repetitions. In these more classic forms of plasticity, experiences are stored as architectural changes in synapses, e.g., with the formation of new spines or structural changes in existing immature spines, as documented in the sensory cortices, hippocam ...
Basal Ganglia and Associated Pathways
... drugs, perhaps in the hopes of creating recreational drugs which were not yet legally restricted. He managed to successfully synthesize the drug and administered it to himself intravenously for several months before synthesizing a new batch. He took “synthetic shortcuts” with the new batch and after ...
... drugs, perhaps in the hopes of creating recreational drugs which were not yet legally restricted. He managed to successfully synthesize the drug and administered it to himself intravenously for several months before synthesizing a new batch. He took “synthetic shortcuts” with the new batch and after ...
The orbitofrontal cortex: Neuronal activity in the behaving monkey
... would only respond if a particular stimulus was present, and if it was the one being currently rewarded. Other neurons had activity related to the outcome of the animal's response, with some indicating that reinforcement had been received and others, Offprint requests to: Dr. E.T. Rolls (address see ...
... would only respond if a particular stimulus was present, and if it was the one being currently rewarded. Other neurons had activity related to the outcome of the animal's response, with some indicating that reinforcement had been received and others, Offprint requests to: Dr. E.T. Rolls (address see ...
Responses of the human motor system to observing actions across
... there is a similarity in the nature of action coding in humans and monkey MNS. To our knowledge, no TMS studies have explored corticospinal excitability in humans during observation of non-human animal actions. Functional imaging studies of brain activity at the systems level, however, suggest that ...
... there is a similarity in the nature of action coding in humans and monkey MNS. To our knowledge, no TMS studies have explored corticospinal excitability in humans during observation of non-human animal actions. Functional imaging studies of brain activity at the systems level, however, suggest that ...
annual report of the erwin l. hahn institute for magnetic resonance
... high image quality, sensitivity and T2-contrast (2). The high image quality is to a large extent attributable to the fact that spin-echoes are exclusively used to generate the signal, hence to a very large degree eliminating the deleterious effects of inhomogeneities in the static magnetic field. An ...
... high image quality, sensitivity and T2-contrast (2). The high image quality is to a large extent attributable to the fact that spin-echoes are exclusively used to generate the signal, hence to a very large degree eliminating the deleterious effects of inhomogeneities in the static magnetic field. An ...
Messages from the Brain Connectivity Regarding Neural Correlates
... consciousness can be caused by damaged function from extensive areas of both cerebral hemispheres, or impairment of structures lying in the paramedian diencephalon and upper brainstem, or involvement of both the hemispheres and brainstem together [5]. Consciousness is not a one-dimensional concept. ...
... consciousness can be caused by damaged function from extensive areas of both cerebral hemispheres, or impairment of structures lying in the paramedian diencephalon and upper brainstem, or involvement of both the hemispheres and brainstem together [5]. Consciousness is not a one-dimensional concept. ...
The Number of Cortical Neurons Used to See
... There has been much study of individual neurons by microelectrode recordings in animals, and gross activation of brain areas by brain scans in man, and psychophysical investigation of limits to human perception (Marcelia 1980). However, it has been very difficult to make specific links between human ...
... There has been much study of individual neurons by microelectrode recordings in animals, and gross activation of brain areas by brain scans in man, and psychophysical investigation of limits to human perception (Marcelia 1980). However, it has been very difficult to make specific links between human ...
Signature - UNE Faculty/Staff Index Page
... Models, prepared specimens, etc. are available during scheduled class and open lab times Any student who damages a model will be held financially responsible Model keys can be found at http://faculty.une.edu/cas/fdaly or in the 3-ring notebooks in lab ...
... Models, prepared specimens, etc. are available during scheduled class and open lab times Any student who damages a model will be held financially responsible Model keys can be found at http://faculty.une.edu/cas/fdaly or in the 3-ring notebooks in lab ...
Control of movement direction - Cognitive Science Research Group
... motion in terms of the actuator dynamics, such as the joint and muscles coordinates. The answer to this question is highly relevant to understanding how visual to motor transformation takes place, and if the brain is directly involved in computing the inverse dynamics of movement, or only the kinema ...
... motion in terms of the actuator dynamics, such as the joint and muscles coordinates. The answer to this question is highly relevant to understanding how visual to motor transformation takes place, and if the brain is directly involved in computing the inverse dynamics of movement, or only the kinema ...
the brain - Medical Research Council
... left- or right-handed seems to be down to a division of labour between the hemispheres of your brain. Speaking and tasks involving your hands both require fine motor skills. So it makes sense that one hemisphere of the brain does both – and this is the left hemisphere in most people. Some people tak ...
... left- or right-handed seems to be down to a division of labour between the hemispheres of your brain. Speaking and tasks involving your hands both require fine motor skills. So it makes sense that one hemisphere of the brain does both – and this is the left hemisphere in most people. Some people tak ...
A Curious Commentary on a Book on Mirror Neurons and Other
... interesting study showing that eye movement response times during object directed actions were slowed following vPMC stimulation. This suggests a link between handaction motor codes and eye movements, which makes sense given the need to coordinate these two actions during self-generated actions. Wha ...
... interesting study showing that eye movement response times during object directed actions were slowed following vPMC stimulation. This suggests a link between handaction motor codes and eye movements, which makes sense given the need to coordinate these two actions during self-generated actions. Wha ...
Differential Temporal Storage Capacity in the Baseline Activity of
... Because the monkeys were required to keep their gaze directed toward the central spot on the display during this period and they had no information about the forthcoming array, baseline activity was virtually free of any specific eye movements and visual stimulus. This allowed us to examine temporal ...
... Because the monkeys were required to keep their gaze directed toward the central spot on the display during this period and they had no information about the forthcoming array, baseline activity was virtually free of any specific eye movements and visual stimulus. This allowed us to examine temporal ...
Correlation between auditory threshold and the auditory brainstem
... increasing click rate may be attributed to a cumulative decrease in the efficacy of synaptic transmission at high stimulus rates, resulting in prolonged synaptic delays along the brainstem auditory pathway [43]. Amplitude reduction in the ABR reflects neuronal impairment and/or death in the brainste ...
... increasing click rate may be attributed to a cumulative decrease in the efficacy of synaptic transmission at high stimulus rates, resulting in prolonged synaptic delays along the brainstem auditory pathway [43]. Amplitude reduction in the ABR reflects neuronal impairment and/or death in the brainste ...
The Neuropsychopharmacology of Stimulants
... histamine-3-receptor antagonists are in the stages of being tested for ADHD and other cognitive disorder (Sander et al., 2008). Only a few studies have been reported thus far and their results using these histamine modulating drugs for ADHD have been mixed (Brioni et al., 2011). Caffeine, an adenosi ...
... histamine-3-receptor antagonists are in the stages of being tested for ADHD and other cognitive disorder (Sander et al., 2008). Only a few studies have been reported thus far and their results using these histamine modulating drugs for ADHD have been mixed (Brioni et al., 2011). Caffeine, an adenosi ...
The Physiology and psychology of pain
... to the brain, where they are translated as pain, and you respond by saying “ouch!” or other choice words. If an individual has knowledge about a potentially painful stimulus, such as receiving an injection, cognitive mechanisms can inhibit the reflex loop and block portions of the behavioral respo ...
... to the brain, where they are translated as pain, and you respond by saying “ouch!” or other choice words. If an individual has knowledge about a potentially painful stimulus, such as receiving an injection, cognitive mechanisms can inhibit the reflex loop and block portions of the behavioral respo ...
PDF
... The electrical stimulus was a train of constant current, with 80 µA (pulse amplitude) and 200 µs (pulse duration) biphasic pulses delivered at 200 Hz for 100 ms as illustrated in Figure 1A. Previously, we proved that these were safe and effective ICMS settings, which evoked behavioral responses in c ...
... The electrical stimulus was a train of constant current, with 80 µA (pulse amplitude) and 200 µs (pulse duration) biphasic pulses delivered at 200 Hz for 100 ms as illustrated in Figure 1A. Previously, we proved that these were safe and effective ICMS settings, which evoked behavioral responses in c ...
Representation of the Visual Field in the Human Occipital Cortex
... Consecutive patients with visual field defects and occipital lobe lesions seen in the neuro-ophthalmology clinic at The Toronto Hospital, Toronto, Ontario, were screened using the central 30-2 threshold program of the Humphrey Field Analyzer (Allergan-Humphrey Instruments, San Leandro, Calif). Patie ...
... Consecutive patients with visual field defects and occipital lobe lesions seen in the neuro-ophthalmology clinic at The Toronto Hospital, Toronto, Ontario, were screened using the central 30-2 threshold program of the Humphrey Field Analyzer (Allergan-Humphrey Instruments, San Leandro, Calif). Patie ...
Capturing Brain Dynamics: a combined neuroscience and
... J = Total current density ∂B ρ = Total charge density ∇×E=− ∂t ε0 = Permittivity of free space ∇⋅B = 0 0 µ0 = Permeability of free space ...
... J = Total current density ∂B ρ = Total charge density ∇×E=− ∂t ε0 = Permittivity of free space ∇⋅B = 0 0 µ0 = Permeability of free space ...
Linking form and motion in the primate brain
... Motion from form could well cause the sense of motion that we perceive while viewing static representations of motion, as present in photographs, sculptures and paintings. Furthermore, this process might help us to distinguish the movement of an animal, person or object against a moving background, ...
... Motion from form could well cause the sense of motion that we perceive while viewing static representations of motion, as present in photographs, sculptures and paintings. Furthermore, this process might help us to distinguish the movement of an animal, person or object against a moving background, ...
Mechanisms to synchronize neuronal activity
... had varying directions of motion. And indeed, information contained in the mean ®ring rate of single neurons was sucient to explain the performance of the animal to discriminating stimulus movement in the preferred direction of the neuron from the opposite direction (Newsome et al. 1989). Although ...
... had varying directions of motion. And indeed, information contained in the mean ®ring rate of single neurons was sucient to explain the performance of the animal to discriminating stimulus movement in the preferred direction of the neuron from the opposite direction (Newsome et al. 1989). Although ...
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.