Cognitive spatial-motor processes
... activity during a waiting period preceding movement have also been observed in several subsequent studies (Kubota and Hamada 1979; Kubota and Funahashi 1982; Weinrich et al. 1984; Wise et al. 1986; Lecas et al. 1986). In the present study we focused on the systematic study of changes in neuronal act ...
... activity during a waiting period preceding movement have also been observed in several subsequent studies (Kubota and Hamada 1979; Kubota and Funahashi 1982; Weinrich et al. 1984; Wise et al. 1986; Lecas et al. 1986). In the present study we focused on the systematic study of changes in neuronal act ...
Canceling Planned Action: An fMRI Study of
... target side and ITI were randomized according to an algorithm designed to optimize statistical power while retaining task unpredictability (Wager and Nichols, 2003). Steps were taken to assure that subjects generated saccades as rapidly as possible. First, STOP trials were relatively rare compared t ...
... target side and ITI were randomized according to an algorithm designed to optimize statistical power while retaining task unpredictability (Wager and Nichols, 2003). Steps were taken to assure that subjects generated saccades as rapidly as possible. First, STOP trials were relatively rare compared t ...
different sensory modalities
... • There are important differences between animal species • What remains constant is the general plan of overlapping (register) of the different sensory representations, of the movement representations and of sensory and movement representations • The differences reflect the sensory modality a specie ...
... • There are important differences between animal species • What remains constant is the general plan of overlapping (register) of the different sensory representations, of the movement representations and of sensory and movement representations • The differences reflect the sensory modality a specie ...
Hindbrain catecholamine neurons mediate
... Keywords: Norepinephrine; Epinephrine; Anti-dopamine-h-hydroxylase – saporin; Food intake; Glucoprivation; Hypoglycemia; Mercaptoacetate ...
... Keywords: Norepinephrine; Epinephrine; Anti-dopamine-h-hydroxylase – saporin; Food intake; Glucoprivation; Hypoglycemia; Mercaptoacetate ...
Coding Rate and Duration of Vocalizations of the Frog, Xenopus laevis
... Data analysis. We identified a single neuron type with vocal-related activity, which was active mostly during fictive fast trills [“fast-trill neurons” (FTNs)]. FTNs were used for further analysis if their membrane potentials were recorded during at least five fictive advertisement calls. Vocal-rela ...
... Data analysis. We identified a single neuron type with vocal-related activity, which was active mostly during fictive fast trills [“fast-trill neurons” (FTNs)]. FTNs were used for further analysis if their membrane potentials were recorded during at least five fictive advertisement calls. Vocal-rela ...
Stochastic neural network dynamics: synchronisation and control
... An overview of existing literature, methods and results that introduces the field of stochastic neuron-like network modelling is given in Chapters 2, 3 and 4. The impact of establishing a network by connecting individual units and the origins of “neuronal noise” are discussed in Chapter 3; the confi ...
... An overview of existing literature, methods and results that introduces the field of stochastic neuron-like network modelling is given in Chapters 2, 3 and 4. The impact of establishing a network by connecting individual units and the origins of “neuronal noise” are discussed in Chapter 3; the confi ...
MR Evaluation of Brain Iron in Children with Cerebral Infarction
... matter structures has been documented by Drayer et al. [18] and Rutledge et al. [7] . Hallgren and Sourander [2] found that ferric species accumulated rapidly in ganglionic sites with the greatest rate of physiologic deposition occurring before the age of 20 years. This temporal progression of accum ...
... matter structures has been documented by Drayer et al. [18] and Rutledge et al. [7] . Hallgren and Sourander [2] found that ferric species accumulated rapidly in ganglionic sites with the greatest rate of physiologic deposition occurring before the age of 20 years. This temporal progression of accum ...
A Model of Surround Suppression Through Cortical Feedback
... All five V1 regions send feedforward projections to the V2 region. The feedforward projections originate from the V1 neurons and terminate on both excitatory and inhibitory neurons within the V2 region. The output weights extending from one V1 neuron take on a Gaussian pattern which is identical for ...
... All five V1 regions send feedforward projections to the V2 region. The feedforward projections originate from the V1 neurons and terminate on both excitatory and inhibitory neurons within the V2 region. The output weights extending from one V1 neuron take on a Gaussian pattern which is identical for ...
What Is the Nervous System?
... End of Section 11.3 Click on this slide to end this presentation. ...
... End of Section 11.3 Click on this slide to end this presentation. ...
Singing in the Brain: Investigating the Role of Adult
... highly individualized behavior; it is learned from a “tutor,” usually the young bird’s father, but a father-son pair might produce two rather different songs depending on the species and circumstances under which the bird is raised. Studying birdsong thus has the potential to help scientists underst ...
... highly individualized behavior; it is learned from a “tutor,” usually the young bird’s father, but a father-son pair might produce two rather different songs depending on the species and circumstances under which the bird is raised. Studying birdsong thus has the potential to help scientists underst ...
Mirror neurons or emulator neurons?
... cases, the observer's own motor activation was triggered by their understanding of the goal, or immediate subgoal, of the observed individual, and simulated predictively what the other should do to achieve that goal. 2 MN response reflects further goals The activation of mirror neurons depends not o ...
... cases, the observer's own motor activation was triggered by their understanding of the goal, or immediate subgoal, of the observed individual, and simulated predictively what the other should do to achieve that goal. 2 MN response reflects further goals The activation of mirror neurons depends not o ...
A quantitative link between face discrimination deficits and neuronal
... with an ASD (see Table 1) participated in this study. ASD diagnosis was determined using the Autism Diagnostic Observation Schedule (ADOS), Module 4. Twelve of the subjects were recruited at Massachusetts General Hospital (MGH) and only participated in the behavioral experiments, and the other fiftee ...
... with an ASD (see Table 1) participated in this study. ASD diagnosis was determined using the Autism Diagnostic Observation Schedule (ADOS), Module 4. Twelve of the subjects were recruited at Massachusetts General Hospital (MGH) and only participated in the behavioral experiments, and the other fiftee ...
3.05 Neural Substrates of Remembering – Electroencephalographic
... positive and negative deflections, the timing and waveshape of which vary with the nature of the stimuli and the neural operations performed in response to the stimuli. Some ERPs, such as the brainstem auditory evoked potentials produced during the first 10 ms after a click, have very small amplitud ...
... positive and negative deflections, the timing and waveshape of which vary with the nature of the stimuli and the neural operations performed in response to the stimuli. Some ERPs, such as the brainstem auditory evoked potentials produced during the first 10 ms after a click, have very small amplitud ...
Chapter 7 States of Consciousness II
... brain engages in a lot of random neural activity. Dreams make sense of this activity. 5. Cognitive Development: Some researchers argue that we dream as a part of brain maturation and cognitive development. All dream researchers believe we need REM sleep. When deprived of REM sleep and then allowed t ...
... brain engages in a lot of random neural activity. Dreams make sense of this activity. 5. Cognitive Development: Some researchers argue that we dream as a part of brain maturation and cognitive development. All dream researchers believe we need REM sleep. When deprived of REM sleep and then allowed t ...
Posterior Pituitary
... Posterior Pituitary The posterior pituitary is significantly different in structure and function from the anterior pituitary. As its name implies, the posterior pituitary is behind the anterior pituitary (toward the back). It contains mostly axons of secretory neurons and neuroglia cells; the cell b ...
... Posterior Pituitary The posterior pituitary is significantly different in structure and function from the anterior pituitary. As its name implies, the posterior pituitary is behind the anterior pituitary (toward the back). It contains mostly axons of secretory neurons and neuroglia cells; the cell b ...
Synaptic Pruning in Development: A Novel Account in Neural Terms
... cerebellum [J.Takacs and Hamori, 1994], projection bers between hemispheres [Innocenti, 1995] and the dentate gyrus [Eckenho and Rakic, 1991]. The time scale of synaptic elimination was found to vary between di erent cortical areas, coarsely following a dorsal to frontal order [Rakic et al., 1994] ...
... cerebellum [J.Takacs and Hamori, 1994], projection bers between hemispheres [Innocenti, 1995] and the dentate gyrus [Eckenho and Rakic, 1991]. The time scale of synaptic elimination was found to vary between di erent cortical areas, coarsely following a dorsal to frontal order [Rakic et al., 1994] ...
exuberance in the development of cortical
... the region of the internal capsule, before the thalamocortical tract forms26–28. These projections are thought to guide thalamocortical axons as they make a sharp lateral turn across the boundary between the DIENCEPHALON and telencephalon (FIG. 2). In mouse mutants that lack the transcription factor ...
... the region of the internal capsule, before the thalamocortical tract forms26–28. These projections are thought to guide thalamocortical axons as they make a sharp lateral turn across the boundary between the DIENCEPHALON and telencephalon (FIG. 2). In mouse mutants that lack the transcription factor ...
Paying attention to consciousness - What is Neuro
... The paper starts with a brief survey of the nature of attention. I then briefly review engineering control, and more specific motor control concepts, in Section 3. A general control model for sensory attention is developed in Section 4, including simple simulations which support the presence of cert ...
... The paper starts with a brief survey of the nature of attention. I then briefly review engineering control, and more specific motor control concepts, in Section 3. A general control model for sensory attention is developed in Section 4, including simple simulations which support the presence of cert ...
CENTRAL NERVOUS SYSTEM NEURONAL MIGRATION
... tenascin X, restrictin, and the integrin beta chain (D’Arcangelo et al 1997). Because Reelin is expressed in a zone above the site where Purkinje cells cease migration (Miyata et al 1996), Reelin might curb the initial migration of the immature Purkinje cells. This action would suspend Purkinje cell ...
... tenascin X, restrictin, and the integrin beta chain (D’Arcangelo et al 1997). Because Reelin is expressed in a zone above the site where Purkinje cells cease migration (Miyata et al 1996), Reelin might curb the initial migration of the immature Purkinje cells. This action would suspend Purkinje cell ...
The Thalamus
... anatomical studies and one-time physician to the Roman Emperor, Marcus Aurelius, remained the most influential biomedical scientist until the rebirth of experimentation during the Renaissance. Galen used the Greek word thalamos, meaning an inner room or storeroom of a Greek or Roman house, to refer ...
... anatomical studies and one-time physician to the Roman Emperor, Marcus Aurelius, remained the most influential biomedical scientist until the rebirth of experimentation during the Renaissance. Galen used the Greek word thalamos, meaning an inner room or storeroom of a Greek or Roman house, to refer ...
Mercury and the Developing Brain
... Neurons signal by transmitting electrical impulses along their axons. A layer of specialized fatty cells produce the myelin sheath, which insulates the axon and helps speed the transmission of electrical impulses. The electrical impulses are transmitted at speeds up to several hundred miles per hour ...
... Neurons signal by transmitting electrical impulses along their axons. A layer of specialized fatty cells produce the myelin sheath, which insulates the axon and helps speed the transmission of electrical impulses. The electrical impulses are transmitted at speeds up to several hundred miles per hour ...
Extended PDF
... divide symmetrically to amplify the progenitor pool. During the neurogenic phase, RGPs are believed to divide asymmetrically to produce neurons either directly or indirectly through transient amplifying progenitors, such as intermediate progenitors (IPs) (Florio and Huttner, 2014). Consecutive waves ...
... divide symmetrically to amplify the progenitor pool. During the neurogenic phase, RGPs are believed to divide asymmetrically to produce neurons either directly or indirectly through transient amplifying progenitors, such as intermediate progenitors (IPs) (Florio and Huttner, 2014). Consecutive waves ...
Human Feature Extraction – The Role of the Articulatory Rhythm
... are quasi-rhythmic. The movements are steered by neuronal oscillations – the action-oscillations. In parallel, sensory systems as feeling and hearing analyze these actions. In these processes, oscillations – the sensory-oscillations - are involved. It is hypothesized, that the actionoscillations and ...
... are quasi-rhythmic. The movements are steered by neuronal oscillations – the action-oscillations. In parallel, sensory systems as feeling and hearing analyze these actions. In these processes, oscillations – the sensory-oscillations - are involved. It is hypothesized, that the actionoscillations and ...