Branched thalamic afferents - the Sherman Lab
... hydraulic model does not provide an accurate view of how the “conscious sensations” transmitted by the posterior column fibers relate to the spinal reflexes, we should not ignore Cajal's insight: that the branching pattern must represent some close relationship between the messages that are sent thr ...
... hydraulic model does not provide an accurate view of how the “conscious sensations” transmitted by the posterior column fibers relate to the spinal reflexes, we should not ignore Cajal's insight: that the branching pattern must represent some close relationship between the messages that are sent thr ...
Neurophysiological Aspects of Song Pattern Recognition and Sound
... of a receptor on the sound facing side than on the contralateral side (see Fig. 5A). Fig. 5B shows the latency vs. intensity curves of a single receptor fibre, for the two stimulus types indicated by insets. The curve for the slowly rising ramp is shifted towards higher latency values as compared wi ...
... of a receptor on the sound facing side than on the contralateral side (see Fig. 5A). Fig. 5B shows the latency vs. intensity curves of a single receptor fibre, for the two stimulus types indicated by insets. The curve for the slowly rising ramp is shifted towards higher latency values as compared wi ...
Sensory Regeneration in Arthropods: Implications of Homoeosis
... connections elicit action potentials in giant interneurons when cereal mechanoreceptors are stimulated (Edwards et al., 1967). It was originally thought that connections were made with the more anterior regions of the same giant interneurons (the MGI and LGI) whose normal input from cereal mechanore ...
... connections elicit action potentials in giant interneurons when cereal mechanoreceptors are stimulated (Edwards et al., 1967). It was originally thought that connections were made with the more anterior regions of the same giant interneurons (the MGI and LGI) whose normal input from cereal mechanore ...
Nucleus Gracilis: An Integrator for Visceral and Somatic Information
... ipsilateral fasciculus gracilis of the spinal cord, the ipsilateral NG, and the region of decussation of the ML. Moreover, our group has shown that visceral as well as cutaneous input into the NG can be abolished by a lesion of the DC at the level of T 10 (Al-Chaer et al. 1996b). The T 10 DC lesion ...
... ipsilateral fasciculus gracilis of the spinal cord, the ipsilateral NG, and the region of decussation of the ML. Moreover, our group has shown that visceral as well as cutaneous input into the NG can be abolished by a lesion of the DC at the level of T 10 (Al-Chaer et al. 1996b). The T 10 DC lesion ...
Name__________________________________ The Spinal Cord
... Name__________________________________ The Spinal Cord and Reflexes Lab A reflex arc represents the simplest type of nerve pathway found in the brain. It may consist of only 2 or 3 neurons. The pathway is an automatic, unconscious response to a change in the external environment and does not involve ...
... Name__________________________________ The Spinal Cord and Reflexes Lab A reflex arc represents the simplest type of nerve pathway found in the brain. It may consist of only 2 or 3 neurons. The pathway is an automatic, unconscious response to a change in the external environment and does not involve ...
Slide 1
... Multimodal Association Areas • Receive inputs from multiple sensory areas • Send outputs to multiple areas, including the premotor cortex • Allow us to give meaning to information received, store it as memory, compare it to previous experience, and decide on action to take ...
... Multimodal Association Areas • Receive inputs from multiple sensory areas • Send outputs to multiple areas, including the premotor cortex • Allow us to give meaning to information received, store it as memory, compare it to previous experience, and decide on action to take ...
Transformation from temporal to rate coding in a somatosensory
... smaller13±15. Furthermore, as these latency shifts developed during each stimulus train, they probably re¯ect a dynamic process. Paralemniscal processing could be conducted in parallel to, or in series with2,4,5, lemniscal processing. If processing is in series, the onset of POm activity should lag ...
... smaller13±15. Furthermore, as these latency shifts developed during each stimulus train, they probably re¯ect a dynamic process. Paralemniscal processing could be conducted in parallel to, or in series with2,4,5, lemniscal processing. If processing is in series, the onset of POm activity should lag ...
sleep paralysis
... • Difficult to get up in the morning (lethargic form) • Without prolonged night sleep (somnolent form) ...
... • Difficult to get up in the morning (lethargic form) • Without prolonged night sleep (somnolent form) ...
part ii: the animal mind - Neural and Mental Evolution
... nucleotides (adenine, guanine, uracil, and cytosine). Moreover, it has also been shown that amino acids polymerize into peptides and protein-like macromolecules when subjected to various experimental treatments, and that these macromolecules may form encapsulated microspheres when boiled in water (F ...
... nucleotides (adenine, guanine, uracil, and cytosine). Moreover, it has also been shown that amino acids polymerize into peptides and protein-like macromolecules when subjected to various experimental treatments, and that these macromolecules may form encapsulated microspheres when boiled in water (F ...
What Are Emotional States, and Why Do We
... reward or punisher, is shown in Figure 1. Before accepting this approach, we should consider whether there are any exceptions to the proposed rule. Are any emotions caused by stimuli, events, or remembered events that are not rewarding or punishing? Do any rewarding or punishing stimuli not cause em ...
... reward or punisher, is shown in Figure 1. Before accepting this approach, we should consider whether there are any exceptions to the proposed rule. Are any emotions caused by stimuli, events, or remembered events that are not rewarding or punishing? Do any rewarding or punishing stimuli not cause em ...
Nervous system
... that form & circulate cerebrospinal fluid ) and the central canal of the spinal cord . 2- Astrocytes : Star shaped cells with numerous processes . They are of two types a- protoplasmic astrocytes : are found in the gray matter of the CNS . bfibrous astrocytes : are found in the white matter of the C ...
... that form & circulate cerebrospinal fluid ) and the central canal of the spinal cord . 2- Astrocytes : Star shaped cells with numerous processes . They are of two types a- protoplasmic astrocytes : are found in the gray matter of the CNS . bfibrous astrocytes : are found in the white matter of the C ...
State dependent activity in monkey visual cortex
... Summary. Responses were recorded from isolated neurons in the visual cortex of rhesus monkeys while they performed an orientation match to sample task. In each trial the animal was first cued with randomly selected orientation, and then presented with a sequence of gratings whose orientations were r ...
... Summary. Responses were recorded from isolated neurons in the visual cortex of rhesus monkeys while they performed an orientation match to sample task. In each trial the animal was first cued with randomly selected orientation, and then presented with a sequence of gratings whose orientations were r ...
Hemispheric Differences in the Activation of
... hemispheric differences when the perceptual form of objects was altered on repeated presentation using a visual half-field technique in combination with a repetition priming procedure (Marsolek, 1995, 1999). In one study (Marsolek, 1999), participants viewed objects presented centrally in a study ph ...
... hemispheric differences when the perceptual form of objects was altered on repeated presentation using a visual half-field technique in combination with a repetition priming procedure (Marsolek, 1995, 1999). In one study (Marsolek, 1999), participants viewed objects presented centrally in a study ph ...
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... the physical form of the object presented to the subject [3, 4]. Causal networking among different brain localities has been determined by Ahmed et al. [5]. The neural activations are adjudged according to the object presented and their magnitude depends on the type of the stimulus [6, 7]. Function ...
... the physical form of the object presented to the subject [3, 4]. Causal networking among different brain localities has been determined by Ahmed et al. [5]. The neural activations are adjudged according to the object presented and their magnitude depends on the type of the stimulus [6, 7]. Function ...
Document
... Before committing to cryoablation, the provider must perform a series of test blocks to determine presence of a consistent analgesic response. A favorable response before cryoablation occurs when the local anesthetic injection decreases pain, and the numbness that replaces the pain is tolerated by t ...
... Before committing to cryoablation, the provider must perform a series of test blocks to determine presence of a consistent analgesic response. A favorable response before cryoablation occurs when the local anesthetic injection decreases pain, and the numbness that replaces the pain is tolerated by t ...
Central Emotional Integration
... Autonomic Functions and Ongoing Behavior Amygdaloid complex regulates the autonomic components of the unconditioned & conditioned behavioral response: Inputs from sensory thalamus and cortex to lateral and basal n. & inputs from central autonomic system to central n. Divergent ascending and desc ...
... Autonomic Functions and Ongoing Behavior Amygdaloid complex regulates the autonomic components of the unconditioned & conditioned behavioral response: Inputs from sensory thalamus and cortex to lateral and basal n. & inputs from central autonomic system to central n. Divergent ascending and desc ...
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.