THE BASAL GANGLIA
... Parkinsonian with lesions induced by MPTP. To alleviate the symptoms, L-dopa, the precursor of dopamine is used. The L-dopa treatment, has, however, side effects. Especially, long term treatment may provoke motor symptoms than are different from those caused by the disease, such as chorea-like and a ...
... Parkinsonian with lesions induced by MPTP. To alleviate the symptoms, L-dopa, the precursor of dopamine is used. The L-dopa treatment, has, however, side effects. Especially, long term treatment may provoke motor symptoms than are different from those caused by the disease, such as chorea-like and a ...
THE BASAL GANGLIA
... Parkinsonian with lesions induced by MPTP. To alleviate the symptoms, L-dopa, the precursor of dopamine is used. The L-dopa treatment, has, however, side effects. Especially, long term treatment may provoke motor symptoms than are different from those caused by the disease, such as chorea-like and a ...
... Parkinsonian with lesions induced by MPTP. To alleviate the symptoms, L-dopa, the precursor of dopamine is used. The L-dopa treatment, has, however, side effects. Especially, long term treatment may provoke motor symptoms than are different from those caused by the disease, such as chorea-like and a ...
Lecture 2
... whose primary input is from the somatosensory system. • integrates sensory information from multiple modalities • integrating internal states (intentions, proprioception etc.) with external information or goals (e.g., directing eye and hand movements) • goal-relevant processing (macaque examples) • ...
... whose primary input is from the somatosensory system. • integrates sensory information from multiple modalities • integrating internal states (intentions, proprioception etc.) with external information or goals (e.g., directing eye and hand movements) • goal-relevant processing (macaque examples) • ...
Nervous communication
... Nervous signalling is not just fast, but also flexible ● neurones make multiple connections ● this allows us to have many possible responses A sensory neurone passes impulses from receptors to the Central Nervous System ...
... Nervous signalling is not just fast, but also flexible ● neurones make multiple connections ● this allows us to have many possible responses A sensory neurone passes impulses from receptors to the Central Nervous System ...
Central Control of Motor Function
... So, descending information in CST also results in activation of the basal ganglia, cerebellum, and brain stem. ...
... So, descending information in CST also results in activation of the basal ganglia, cerebellum, and brain stem. ...
Proc. Natl. Acad. Sci. USA
... the sampled neurons responded strongly to both the set A and set B patterns during the cue period of the task. The responses of one cell are shown in Fig. 3 B and C. This cell was activated selectively by a few stimuli of set B (Fig. 3D) and very weakly by the stimuli of set A (Fig. 3E). The lesion ...
... the sampled neurons responded strongly to both the set A and set B patterns during the cue period of the task. The responses of one cell are shown in Fig. 3 B and C. This cell was activated selectively by a few stimuli of set B (Fig. 3D) and very weakly by the stimuli of set A (Fig. 3E). The lesion ...
Depth perception by the active observer
... consequences – is often enough to modify the observer’s perception and representation of 3D space and shape. In this article we will review the ways in which locomotion, head and eye movements, and object manipulation modify visual perceptions of depth. Locomotion and navigation Active exploration a ...
... consequences – is often enough to modify the observer’s perception and representation of 3D space and shape. In this article we will review the ways in which locomotion, head and eye movements, and object manipulation modify visual perceptions of depth. Locomotion and navigation Active exploration a ...
Central Nervous System - Amudala Assistance Area
... The functional areas of the cerebrum • sensory areas interpret impulses from receptors. • motor areas control muscular movements. • association areas are involved with intellectual and emotional processes. ...
... The functional areas of the cerebrum • sensory areas interpret impulses from receptors. • motor areas control muscular movements. • association areas are involved with intellectual and emotional processes. ...
Central Nervous System
... The functional areas of the cerebrum • sensory areas interpret impulses from receptors. • motor areas control muscular movements. • association areas are involved with intellectual and emotional processes. ...
... The functional areas of the cerebrum • sensory areas interpret impulses from receptors. • motor areas control muscular movements. • association areas are involved with intellectual and emotional processes. ...
VL_CHAPTER_4
... cortex clearly. This movie shows the response measured by fMRI in the visual cortex of a human who was viewing a stimulus. The stimulus shown is a flickering ring with a checkerboard pattern that slowly expanded, moving from the center of vision (the foveal region) to the periphery. Notice that the ...
... cortex clearly. This movie shows the response measured by fMRI in the visual cortex of a human who was viewing a stimulus. The stimulus shown is a flickering ring with a checkerboard pattern that slowly expanded, moving from the center of vision (the foveal region) to the periphery. Notice that the ...
A Volumetric MRI Analysis of Hypochondriac Patients
... white matter volume, significantly smaller left and right OFC volumes and significantly greater left and right thalamus volumes compared to healthy controls. Likewise, in the same study, the patient group had anterior cingulate exhibited a near-significant difference compared to healthy controls on ...
... white matter volume, significantly smaller left and right OFC volumes and significantly greater left and right thalamus volumes compared to healthy controls. Likewise, in the same study, the patient group had anterior cingulate exhibited a near-significant difference compared to healthy controls on ...
similar cortical mechanisms for perceptual and motor learning
... similar ‘hardware’ – neurons and synapses – they must have close analogies at the level of implementation. However, the issue is whether those similarities extend to the algorithmic level. Such similarities would simplify the interaction between sensory and motor systems, but have neuroscientists ob ...
... similar ‘hardware’ – neurons and synapses – they must have close analogies at the level of implementation. However, the issue is whether those similarities extend to the algorithmic level. Such similarities would simplify the interaction between sensory and motor systems, but have neuroscientists ob ...
14. Assessment of the nervous system
... Unconditioned reflexes: They are inborn ones They are phylogenetically old, that means they were formed in course of phylogenesis They are based on certain anatomic structures (segments of spinal cord or brain stem) They exist even without brain cortex influence They are inherited They can be regul ...
... Unconditioned reflexes: They are inborn ones They are phylogenetically old, that means they were formed in course of phylogenesis They are based on certain anatomic structures (segments of spinal cord or brain stem) They exist even without brain cortex influence They are inherited They can be regul ...
26: Spinal Cord, Spinal Nerves, White and Grey Matter
... medullaris, situated at the first lumbar (L1) vertebra. ...
... medullaris, situated at the first lumbar (L1) vertebra. ...
A Neuropsychiatric Model of Biological and Psychological Processes in the
... model has been proposed by Frith.45 This model can explain delusions of control and AVHs. A central monitor compares actions to the expected results of that action. In psychotic patients, intentions of will lead to actions but these willed intentions are not monitored correctly. This apparent discre ...
... model has been proposed by Frith.45 This model can explain delusions of control and AVHs. A central monitor compares actions to the expected results of that action. In psychotic patients, intentions of will lead to actions but these willed intentions are not monitored correctly. This apparent discre ...
Z333 Lecture
... Information Processing in the Nervous System: 1) Determine stimulus type (e.g. light / sound / touch) • All APs are similar in structure • Wiring pattern in brain distinguishes stimuli 2) Signal intensity of stimulus • All APs are similar in size (all-or-none response) • Intensity coded by: 1) Frequ ...
... Information Processing in the Nervous System: 1) Determine stimulus type (e.g. light / sound / touch) • All APs are similar in structure • Wiring pattern in brain distinguishes stimuli 2) Signal intensity of stimulus • All APs are similar in size (all-or-none response) • Intensity coded by: 1) Frequ ...
Reflex sympathetic dystrophy/complex regional pain syndrome, type 1
... painful sensation induced by nonpainful stimulus such as light touch on the affected area). Normal X-rays were taken of both feet. These showed marked osteopenic changes and radiolucent lines which appeared to be stress fractures, especially in the left calcaneus (Figs 1a and 1b and Figs 2a and 2b). ...
... painful sensation induced by nonpainful stimulus such as light touch on the affected area). Normal X-rays were taken of both feet. These showed marked osteopenic changes and radiolucent lines which appeared to be stress fractures, especially in the left calcaneus (Figs 1a and 1b and Figs 2a and 2b). ...
MotorIntroV2
... • Organized around purposeful acts • Flexible input-output relationships – Limitless – Price to pay: whole brain ...
... • Organized around purposeful acts • Flexible input-output relationships – Limitless – Price to pay: whole brain ...
Allochiria
Allochiria (from the Greek meaning ""other hand"") is a neurological disorder in which the patient responds to stimuli presented to one side of their body as if the stimuli had been presented at the opposite side. It is associated with spatial transpositions, usually symmetrical, of stimuli from one side of the body (or of the space) to the opposite one. Thus a touch to the left arm will be reported as a touch to the right arm, which is also known as somatosensory allochiria. If the auditory or visual senses are affected, sounds (a person's voice for instance) will be reported as being heard on the opposite side to that on which they occur and objects presented visually will be reported as having been presented on the opposite side. Often patients may express allochiria in their drawing while copying an image. Allochiria often co-occurs with unilateral neglect and, like hemispatial neglect, the disorder arises commonly from damage to the right parietal lobe.Allochiria is often confused with alloesthesia, also known as false allochiria. True allochiria is a symptom of dyschiria and unilateral neglect. Dyschiria is a disorder in the localization of sensation due to various degrees of dissociation and cause impairment in one side causing the inability to tell which side of the body was touched.