Multi-Scale Modeling of the Primary Visual Cortex
... Figure 4: (a) Preferred cortical state of the neuron in the middle of the plot. (b) Spike-triggered activity pattern of the same neuron. (c) Evolution of the similarity index over time and orientation preference. (d) Evolution of the similarity index over time for orientation preference −60 deg. (e ...
... Figure 4: (a) Preferred cortical state of the neuron in the middle of the plot. (b) Spike-triggered activity pattern of the same neuron. (c) Evolution of the similarity index over time and orientation preference. (d) Evolution of the similarity index over time for orientation preference −60 deg. (e ...
Microcircuits in visual cortex Kevan AC Martin
... preferences change rapidly. Such images have been the inspiration for models of cortical wiring, where the goal is to discover whether the maps are in some way optimal solutions to the constraint of reducing wiring length [5,6•]. The significance of exploring this domain is that it places important ...
... preferences change rapidly. Such images have been the inspiration for models of cortical wiring, where the goal is to discover whether the maps are in some way optimal solutions to the constraint of reducing wiring length [5,6•]. The significance of exploring this domain is that it places important ...
THE NEUROLOGIC EXAMINATION Ralph F
... The thalamus can be understood by considering a classification based upon function, and it can be understood by appreciating different types of output to the cerebral cortex. It is customary, however, to study the thalamus from an anatomical perspective. Each hemisphere of the thalamus consists of n ...
... The thalamus can be understood by considering a classification based upon function, and it can be understood by appreciating different types of output to the cerebral cortex. It is customary, however, to study the thalamus from an anatomical perspective. Each hemisphere of the thalamus consists of n ...
Developmental mechanics of the primate cerebral cortex
... help of deformed rubber tubes, and explained the cerebral shape by unequal growth, competing volume demands, and resulting tension of different brain structures (His 1874). The work of His and fellow embryologists inaugurated the subject of ‘developmental mechanics’ (Entwicklungsmechanik), which emph ...
... help of deformed rubber tubes, and explained the cerebral shape by unequal growth, competing volume demands, and resulting tension of different brain structures (His 1874). The work of His and fellow embryologists inaugurated the subject of ‘developmental mechanics’ (Entwicklungsmechanik), which emph ...
Weisstaub cortical serotonin signaling modulates anxiety in mice science 2005
... depression-related behaviors. Selective restoration of 5HT2AR signaling to the cortex normalized conflict anxiety behaviors. These findings indicate a specific role for cortical 5HT2AR function in the modulation of conflict anxiety, consistent with models of cortical, ‘‘top-down’’ influences on risk ...
... depression-related behaviors. Selective restoration of 5HT2AR signaling to the cortex normalized conflict anxiety behaviors. These findings indicate a specific role for cortical 5HT2AR function in the modulation of conflict anxiety, consistent with models of cortical, ‘‘top-down’’ influences on risk ...
Document
... a clap in a single dream concurred with Galen’s prescient theory that one pneuma acts for each sense organ. This dream suggests an association of two sensory inputs or crossmodal processing: the ability to use one sense–vision–to learn something in another sense–sound. ...
... a clap in a single dream concurred with Galen’s prescient theory that one pneuma acts for each sense organ. This dream suggests an association of two sensory inputs or crossmodal processing: the ability to use one sense–vision–to learn something in another sense–sound. ...
HYPOTHALAMUS and EPITHALAMUS
... HYPOTHALAMUS and EPITHALAMUS Aim: To provide a structural basis for understanding the neural control of the 'milieu interne' via the autonomic & endocrine systems, and associated somatic behaviour; of the biological clock; reproductive functions; sleep-wake cycle, control of appetite, growth & metab ...
... HYPOTHALAMUS and EPITHALAMUS Aim: To provide a structural basis for understanding the neural control of the 'milieu interne' via the autonomic & endocrine systems, and associated somatic behaviour; of the biological clock; reproductive functions; sleep-wake cycle, control of appetite, growth & metab ...
video slide - Course Notes
... • The hypothalamus also regulates circadian rhythms such as the sleep/wake cycle. • Mammals usually have a pair of suprachiasmatic nuclei (SCN) in the hypothalamus that function as a biological clock. • Biological clocks usually require external cues to remain synchronized with environmental cycles. ...
... • The hypothalamus also regulates circadian rhythms such as the sleep/wake cycle. • Mammals usually have a pair of suprachiasmatic nuclei (SCN) in the hypothalamus that function as a biological clock. • Biological clocks usually require external cues to remain synchronized with environmental cycles. ...
Rabies (Rhabdovirus)
... Figure 2. Lateral view of brain with cerebrum removed to show the extension of brain stem beneath the cerebellum. A rabies diagnosis should include an observation of the cut surface of a cross section of the brain stem (through the medulla, pons, or midbrain area) and the cerebellum (through each h ...
... Figure 2. Lateral view of brain with cerebrum removed to show the extension of brain stem beneath the cerebellum. A rabies diagnosis should include an observation of the cut surface of a cross section of the brain stem (through the medulla, pons, or midbrain area) and the cerebellum (through each h ...
030909.PHitchcock.IntroductoryLecture
... other neurons via their axons (also called fibers) and their synapses. • A collection of neuronal cell bodies outside the CNS is called a ganglion. • A collection of neuronal cell bodies within the CNS is called a nucleus. • A discrete bundle of axons outside the CNS is known as a nerve. • A discret ...
... other neurons via their axons (also called fibers) and their synapses. • A collection of neuronal cell bodies outside the CNS is called a ganglion. • A collection of neuronal cell bodies within the CNS is called a nucleus. • A discrete bundle of axons outside the CNS is known as a nerve. • A discret ...
nightmares without atonia as an early symptom of diffuse lewy
... plaques. Immunohistochemical staining for antibodies against tau, and β-amyloid were tested negative. There were also important release of lipofuscin and anoxia signs in the great pyramidal neurons. No focal white matter lesions or vascular disease were observed. Definitive diagnostic was diffuse Le ...
... plaques. Immunohistochemical staining for antibodies against tau, and β-amyloid were tested negative. There were also important release of lipofuscin and anoxia signs in the great pyramidal neurons. No focal white matter lesions or vascular disease were observed. Definitive diagnostic was diffuse Le ...
The Premotor Cortex and Mirror Neurons
... Furthermore, when monkeys had to perform more complex actions the activity of grasping neurons was modulated since its early phases, suggesting that this activity could depend from a neural mechanism, probably located in the prefrontal cortex, that allows one to select actions on the basis of the co ...
... Furthermore, when monkeys had to perform more complex actions the activity of grasping neurons was modulated since its early phases, suggesting that this activity could depend from a neural mechanism, probably located in the prefrontal cortex, that allows one to select actions on the basis of the co ...
emg and ncs: a practical approach to
... – Upper and lower limb motor studies (median, ulnar, radial and tibial and peroneal) • Less commonly, musculocutaneous and axillary studies ...
... – Upper and lower limb motor studies (median, ulnar, radial and tibial and peroneal) • Less commonly, musculocutaneous and axillary studies ...
Human Anatomy & Physiology I
... Compares actual movements with intended ones Helps produce smooth, coordinated movements Helps execute skilled motor activities Regulates posture and balance ...
... Compares actual movements with intended ones Helps produce smooth, coordinated movements Helps execute skilled motor activities Regulates posture and balance ...
Growth arrest specific gene 7 is associated with schizophrenia and
... Background: Schizophrenia is a highly heritable chronic mental disorder with significant abnormalities in brain function. The neurodevelopmental hypothesis proposes that schizophrenia originates in the prenatal period due to impairments in neuronal developmental processes such as migration and arbor ...
... Background: Schizophrenia is a highly heritable chronic mental disorder with significant abnormalities in brain function. The neurodevelopmental hypothesis proposes that schizophrenia originates in the prenatal period due to impairments in neuronal developmental processes such as migration and arbor ...
Human Vision: Electrophysiology and Psychophysics
... At one time there was a debate as to the question of whether the brain was composed of a continuous system of wires or whether it was a discontinuous network made up of individual neurons ...
... At one time there was a debate as to the question of whether the brain was composed of a continuous system of wires or whether it was a discontinuous network made up of individual neurons ...
Chapter 02 - Neurons and Glia
... 20. Explain that neuroscientists have devised various schemes for the classification of neurons. Discuss the advantages of classifying neurons. In addition, explain the classification that is based on the number of neurites. (Refer to PowerPoint slide 23.) Teaching Suggestion: Using Figure 2.22, dis ...
... 20. Explain that neuroscientists have devised various schemes for the classification of neurons. Discuss the advantages of classifying neurons. In addition, explain the classification that is based on the number of neurites. (Refer to PowerPoint slide 23.) Teaching Suggestion: Using Figure 2.22, dis ...
Malformations of Cortical Development (MCD): Genetic Aspects
... cortical development (MCD), which may be restricted to discrete cortical areas or may, alternatively, be diffuse [2, 3]. So far, more than 100 genes are reported to be associated with one or more types of MCD. The biological pathways include cell-cycle regulation at many steps (especially mitosis an ...
... cortical development (MCD), which may be restricted to discrete cortical areas or may, alternatively, be diffuse [2, 3]. So far, more than 100 genes are reported to be associated with one or more types of MCD. The biological pathways include cell-cycle regulation at many steps (especially mitosis an ...
PREFRONTAL AND MEDIAL TEMPORAL LOBE INTERACTIONS IN
... neurons that show diminished responses to repeated stimuli25,26, whereas few such neurons have been found in the hippocampus27,28. The perirhinal cortex might have a role in perceptual as well as mnemonic processing, with evidence that complex feature conjunctions might be represented in this region ...
... neurons that show diminished responses to repeated stimuli25,26, whereas few such neurons have been found in the hippocampus27,28. The perirhinal cortex might have a role in perceptual as well as mnemonic processing, with evidence that complex feature conjunctions might be represented in this region ...
(2003). Prefrontal and medial temporal lobe interactions in
... neurons that show diminished responses to repeated stimuli25,26, whereas few such neurons have been found in the hippocampus27,28. The perirhinal cortex might have a role in perceptual as well as mnemonic processing, with evidence that complex feature conjunctions might be represented in this region ...
... neurons that show diminished responses to repeated stimuli25,26, whereas few such neurons have been found in the hippocampus27,28. The perirhinal cortex might have a role in perceptual as well as mnemonic processing, with evidence that complex feature conjunctions might be represented in this region ...
Genome wide expression profiling of the
... Mesodiencephalic dopaminergic (mdDA) neurons comprising the substantia nigra (SN) and ventral tegmental area (VTA) are known to be crucial for diverse yet essential brain functions, such as associative motor learning, emotion and reinforcement (Berke and Hyman, 2000). Moreover, dysfunction of the md ...
... Mesodiencephalic dopaminergic (mdDA) neurons comprising the substantia nigra (SN) and ventral tegmental area (VTA) are known to be crucial for diverse yet essential brain functions, such as associative motor learning, emotion and reinforcement (Berke and Hyman, 2000). Moreover, dysfunction of the md ...
Treatment of Thalamic Pain by Chronic Motor Cortex Stimulation
... control in only 20%-30% of cases of thalamic pain syndrome. In order to deveJop a more effective treatment for thaJamic pain syndrome, we investigated the effects of stimulation of various brain regions on the burst hyperactivity 0/thaJamic neurons recorded in cats after deafferentiation of the spin ...
... control in only 20%-30% of cases of thalamic pain syndrome. In order to deveJop a more effective treatment for thaJamic pain syndrome, we investigated the effects of stimulation of various brain regions on the burst hyperactivity 0/thaJamic neurons recorded in cats after deafferentiation of the spin ...
Feedforward, horizontal, and feedback processing
... In the past, V1 was mainly viewed as a static bank of spatio-temporal filters, preprocessing the visual input for the higher visual areas, in which perceptually relevant information was supposed to be extracted. However, it has long been known that responses of V1 cells can be altered by stimuli in ...
... In the past, V1 was mainly viewed as a static bank of spatio-temporal filters, preprocessing the visual input for the higher visual areas, in which perceptually relevant information was supposed to be extracted. However, it has long been known that responses of V1 cells can be altered by stimuli in ...