PSYC550 Sense or Senseless
... – The central region of a module of primary visual cortex, revealed by a stain for cytochrome oxidase; contains wavelength-sensitive neurons; part of the parvocellular system. ...
... – The central region of a module of primary visual cortex, revealed by a stain for cytochrome oxidase; contains wavelength-sensitive neurons; part of the parvocellular system. ...
CranialN11
... This is frequently the scenario with descending tracts for the head as well: bilateral projections ...
... This is frequently the scenario with descending tracts for the head as well: bilateral projections ...
neurology_lec13_9_5_2011 - Post-it
... optic nerve …> optic chiasm ….. > optic tract ……> LGB ……> optic radiation ……> primary visual cortex ~ primary visual cortex ( area 17 ) found above and below calcarine sulcus – y shaped sulcus at medial aspect of cortex – ~ Association area ( 18 ,19 ) explains and makes memories about what you see . ...
... optic nerve …> optic chiasm ….. > optic tract ……> LGB ……> optic radiation ……> primary visual cortex ~ primary visual cortex ( area 17 ) found above and below calcarine sulcus – y shaped sulcus at medial aspect of cortex – ~ Association area ( 18 ,19 ) explains and makes memories about what you see . ...
NAlab07_AuditVest
... crossed and ultimately terminate in the inferior colliculus (NTA Fig. 7-1). The decussation of the auditory fibers from the ventral cochlear nucleus occurs in the trapezoid body. Neurons of the ventral cochlear nucleus synapse in the superior olivary nuclear complex, which is located in the pons (se ...
... crossed and ultimately terminate in the inferior colliculus (NTA Fig. 7-1). The decussation of the auditory fibers from the ventral cochlear nucleus occurs in the trapezoid body. Neurons of the ventral cochlear nucleus synapse in the superior olivary nuclear complex, which is located in the pons (se ...
Auditory and Vestibular Systems Objective • To learn the functional
... crossed and ultimately terminate in the inferior colliculus (NTA Fig. 7-1). The decussation of the auditory fibers from the ventral cochlear nucleus occurs in the trapezoid body. Neurons of the ventral cochlear nucleus synapse in the superior olivary nuclear complex, which is located in the pons (se ...
... crossed and ultimately terminate in the inferior colliculus (NTA Fig. 7-1). The decussation of the auditory fibers from the ventral cochlear nucleus occurs in the trapezoid body. Neurons of the ventral cochlear nucleus synapse in the superior olivary nuclear complex, which is located in the pons (se ...
Layer 3
... 1. Optic nerve and optic chiasm Optic nerve consists of axons of retinal ganglion cells (RGCs). ...
... 1. Optic nerve and optic chiasm Optic nerve consists of axons of retinal ganglion cells (RGCs). ...
The Optic Tectum of Birds - Department of Psychology
... showing typical injections of fluorescent biotinylated dextran amines (BDA). A retrogradely labelled cell and anterogradely labelled terminals from the red injection can be seen in parvocellular nucleus isthmi (Ipc). The arrowheads in the lower right highlight fibres travelling along the brachium of ...
... showing typical injections of fluorescent biotinylated dextran amines (BDA). A retrogradely labelled cell and anterogradely labelled terminals from the red injection can be seen in parvocellular nucleus isthmi (Ipc). The arrowheads in the lower right highlight fibres travelling along the brachium of ...
Outline 10
... o The cerebellum smooths muscle contractions, maintains muscle tone and posture, coordinates the motions of different joints with each other, coordinates eye and body movements, and serves in learning and storing ________________ skills The midbrain o Short section of the brainstem that connects t ...
... o The cerebellum smooths muscle contractions, maintains muscle tone and posture, coordinates the motions of different joints with each other, coordinates eye and body movements, and serves in learning and storing ________________ skills The midbrain o Short section of the brainstem that connects t ...
4.a. the trigeminal system
... discrimination), joint position, and vibration. Located in the middle of pons just lateral to the motor nucleus of V. This would be equivalent to what nucleus in the brain stem? __________ B. Spinal trigeminal nucleus (=descending nucleus of V) mediates pain and ...
... discrimination), joint position, and vibration. Located in the middle of pons just lateral to the motor nucleus of V. This would be equivalent to what nucleus in the brain stem? __________ B. Spinal trigeminal nucleus (=descending nucleus of V) mediates pain and ...
text - Systems Neuroscience Course, MEDS 371, Univ. Conn. Health
... B. Layers 2 & 3 contain small to intermediate sized pyramidal cells that project their axons to other areas of the cerebral cortex. In V1, some of these cells are located in patches that receive the axonal endings of the P & K LGN neurons carrying information about color vision. In addition, it is l ...
... B. Layers 2 & 3 contain small to intermediate sized pyramidal cells that project their axons to other areas of the cerebral cortex. In V1, some of these cells are located in patches that receive the axonal endings of the P & K LGN neurons carrying information about color vision. In addition, it is l ...
Chapter 12
... Function of Cerebellum Error Control Device - Monitor, Quality Control – Monitors outputs to muscles from motor cortex and sensory signals from receptors – Compares the efferent project plan with execution at motor action site – Considers related factors and makes adjustments ...
... Function of Cerebellum Error Control Device - Monitor, Quality Control – Monitors outputs to muscles from motor cortex and sensory signals from receptors – Compares the efferent project plan with execution at motor action site – Considers related factors and makes adjustments ...
The ABCs of VEPs and ERGs Visual Testing Systems Clinical
... profile analysis Optic cup depth is moderate Clinically significant asymmetry between the eyes ...
... profile analysis Optic cup depth is moderate Clinically significant asymmetry between the eyes ...
Superior Frontal Gyrus Superior Longitudinal Fasciculus Superior
... The large calyceal synapses between the globular bushy axons and the MNTB cells are very unusual one and can be seen prominently in Fig. 1. It is often said to be the largest synapse in the brain. The presynaptic element is so large that recordings can be made from both the pre- and post-synaptic ne ...
... The large calyceal synapses between the globular bushy axons and the MNTB cells are very unusual one and can be seen prominently in Fig. 1. It is often said to be the largest synapse in the brain. The presynaptic element is so large that recordings can be made from both the pre- and post-synaptic ne ...
…By the way, where is the fornix???
... • 2 hemispheres, interconnected by: corpus callosum, anterior commissure, posterior commissure and (in some individuals) interthalamic adhesion. • In each hemisphere: cortex (gyri, sulci), white matter and subcortical structures (including hippocampus, amygdala and basal ganglia). ...
... • 2 hemispheres, interconnected by: corpus callosum, anterior commissure, posterior commissure and (in some individuals) interthalamic adhesion. • In each hemisphere: cortex (gyri, sulci), white matter and subcortical structures (including hippocampus, amygdala and basal ganglia). ...
chapter 12 - cerebellum
... Function of Cerebellum Error Control Device - Monitor, Quality Control – Monitors outputs to muscles from motor cortex and sensory signals from receptors – Compares the efferent project plan with execution at motor action site – Considers related factors and makes adjustments ...
... Function of Cerebellum Error Control Device - Monitor, Quality Control – Monitors outputs to muscles from motor cortex and sensory signals from receptors – Compares the efferent project plan with execution at motor action site – Considers related factors and makes adjustments ...
07-pons + midbrain2009-03-24 08:441.9 MB
... -it has ascending fibres to cerebellum, thalamus, hypothalamus, limbic system and cerebral cortex. -its descending fibres project to brain stem & spinal cord. -function : 1-neural mechanisms regulating sleep, particularly REM (rapid eye movement) sleep. 2-acts as an attention center, (functional def ...
... -it has ascending fibres to cerebellum, thalamus, hypothalamus, limbic system and cerebral cortex. -its descending fibres project to brain stem & spinal cord. -function : 1-neural mechanisms regulating sleep, particularly REM (rapid eye movement) sleep. 2-acts as an attention center, (functional def ...
Pursuing commitments
... in moving the eyes—yet both caused changes in mental states more mysterious than movement. In Moore and Fallah’s study6 (Fig. 1), monkeys were trained to detect a subtle change in one visual target among distracters. The task is easier if attention can be drawn to the appropriate part of the visual ...
... in moving the eyes—yet both caused changes in mental states more mysterious than movement. In Moore and Fallah’s study6 (Fig. 1), monkeys were trained to detect a subtle change in one visual target among distracters. The task is easier if attention can be drawn to the appropriate part of the visual ...
06-pons + midbrain
... 1-2 superior colliculi : reflex centers of vision. 2-2 inferior colliculi : reflex centers of hearing. (B)2 Cerebral peduncles : the larger ventral part in front of aqueduct. It consists of 3 parts, arranged from before backwards as follows : 1-Crus cerebri (Basis pedunculi) : the most anterior part ...
... 1-2 superior colliculi : reflex centers of vision. 2-2 inferior colliculi : reflex centers of hearing. (B)2 Cerebral peduncles : the larger ventral part in front of aqueduct. It consists of 3 parts, arranged from before backwards as follows : 1-Crus cerebri (Basis pedunculi) : the most anterior part ...
Primary Somatosensory and Motor Cortex
... and recording. We have already discussed the finding by Sherrington and Penfield that M1 required the least amount of stimulating current to generate muscular contractions. Asanuma and his colleagues did more detailed work using intracortical microstimulation (ICMS). 19 This method used a metal micr ...
... and recording. We have already discussed the finding by Sherrington and Penfield that M1 required the least amount of stimulating current to generate muscular contractions. Asanuma and his colleagues did more detailed work using intracortical microstimulation (ICMS). 19 This method used a metal micr ...
Does the pulvinar-LP complex contribute to motor
... beginning of the reaching movement. Kalaska et a1.16, using a similar experimental paradigm, showed that the onset of activity in the posterior parietal cortex (area 5) was delayed in relation to MI. In one monkey we made recordings in the parietal area 5 while performing the task and the results ma ...
... beginning of the reaching movement. Kalaska et a1.16, using a similar experimental paradigm, showed that the onset of activity in the posterior parietal cortex (area 5) was delayed in relation to MI. In one monkey we made recordings in the parietal area 5 while performing the task and the results ma ...
Now you see it: frontal eye field responses to invisible targets
... perceives it, but that small variations in the magnitude of their response predict very accurately whether an eye movement will be made. David Ferrier first described the FEF in 1875 as the area in frontal cortex that most readily elicited eye movements when electrically stimulated. Many lesion and ...
... perceives it, but that small variations in the magnitude of their response predict very accurately whether an eye movement will be made. David Ferrier first described the FEF in 1875 as the area in frontal cortex that most readily elicited eye movements when electrically stimulated. Many lesion and ...
somatosensory area i
... – From brainstem – From somatosensory cortex – From visual area – From auditory area ...
... – From brainstem – From somatosensory cortex – From visual area – From auditory area ...
Figure 4.8 The human brain stem This composite structure extends
... Nucleus gracilis and nucleus cuneatus pass somatic sensory information to the thalamus Olivary nuclei relay info from the spinal cord, cerebral cortex, and the brainstem to the cerebellar cortex. ...
... Nucleus gracilis and nucleus cuneatus pass somatic sensory information to the thalamus Olivary nuclei relay info from the spinal cord, cerebral cortex, and the brainstem to the cerebellar cortex. ...
RETICULAR FORMATION
... Fastigial nucleus ‐> RF) Vestibulocerebellar (Flocculus‐Nodulus ‐> Fastigial + Vestibular ‐> RF ...
... Fastigial nucleus ‐> RF) Vestibulocerebellar (Flocculus‐Nodulus ‐> Fastigial + Vestibular ‐> RF ...
The Inferior Parietal Lobule Is the Target of Output from the Superior
... is extensively interconnected with the frontal eye field (FEF), as well as with other visual cortical areas, and projects heavily to the intermediate layers of the superior colliculus (Barbas and Mesulam, 1981; Lynch et al., 1985; Andersen et al., 1990). Another subregion of IPL, area 7b, is prefere ...
... is extensively interconnected with the frontal eye field (FEF), as well as with other visual cortical areas, and projects heavily to the intermediate layers of the superior colliculus (Barbas and Mesulam, 1981; Lynch et al., 1985; Andersen et al., 1990). Another subregion of IPL, area 7b, is prefere ...
Superior colliculus
The superior colliculus, (Latin, upper hill) is a paired structure of the mammalian midbrain. In other vertebrates this is known as the optic tectum or simply tectum, and the adjective tectal may also be used. The superior colliculus forms a major component of the midbrain. The tectum is a layered structure, with a number of layers that varies by species. The superficial layers are sensory-related, and receive input from the eyes as well as other sensory systems. The deep layers are motor-related, capable of activating eye movements as well as other responses. There are also intermediate layers, with multi-sensory cells and motor properties.The general function of the tectal system is to direct behavioral responses toward specific points in egocentric (""body-centered"") space. Each layer of the tectum contains a topographic map of the surrounding world in retinotopic coordinates, and activation of neurons at a particular point in the map evokes a response directed toward the corresponding point in space. In primates, the superior colliculus has been studied mainly with respect to its role in directing eye movements. Visual input from the retina, or ""command"" input from the cerebral cortex, create a ""bump"" of activity in the tectal map, which, if strong enough, induces a saccadic eye movement. Even in primates, however, the tectum is also involved in generating spatially directed head turns, arm-reaching movements, and shifts in attention that do not involve any overt movements. In other species, the tectum is involved in a wide range of responses, including whole-body turns in walking rats, swimming fishes, or flying birds; tongue-strikes toward prey in frogs; fang-strikes in snakes; etc.In some vertebrates, including fish and birds, the tectum is one of the largest components of the brain. In mammals, and especially primates, the massive expansion of the cerebral cortex reduces the tectum (""superior colliculus"") to a much smaller fraction of the whole brain. It remains nonetheless important in terms of function as the primary integrating center for eye movements.Note on terminology: This article follows terminology established in the literature for the analogous structure in mammals/non-mammals (see above), using the term ""superior colliculus"" when discussing mammals and ""optic tectum"" when discussing either specific non-mammalian species or vertebrates in general.