Cajal brain hi-res stock photography and images

Brain Vestibular Sensor Connections, Cajal, 1899 Stock Photo

RMHRP15G–Brain Vestibular Sensor Connections, Cajal, 1899

SANTIAGO RAMON y CAJAL (1852-1934) Spanish pathologist who specialised in studies of the brain Stock Photo

RMF4GK7X–SANTIAGO RAMON y CAJAL (1852-1934) Spanish pathologist who specialised in studies of the brain

RM2BDYNB6–Cajal, Nerve Cells

RAMON AND CAJAL, Santiago (Petilla of Aragon, Navarre 1852-Madrid, 1934). Spanish histologist, physician and pathologist. He made important discoveries such as laws governing the morphology and connections of nerve cells in the brain. Nobel Prize in Medicine in 1906 along with C. Golgi. Stock Photo

RMP50JFF–RAMON AND CAJAL, Santiago (Petilla of Aragon, Navarre 1852-Madrid, 1934). Spanish histologist, physician and pathologist. He made important discoveries such as laws governing the morphology and connections of nerve cells in the brain. Nobel Prize in Medicine in 1906 along with C. Golgi.

Retina of the sparrow. Subtipe of retinal ganglion cell. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Mas Stock Photo

RM2G36YHN–Retina of the sparrow. Subtipe of retinal ganglion cell. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Mas

. A text-book of physiology : for medical students and physicians . y, the granular layer (3 in Fig. 81), the supra-granular layer (2), comprising the pyramidal cells external to the * Cajal, Les nouvelles idees sur la structure du systeme nerveux, etc.,Paris 1894. t For a summary of these views consult Bolton, Brain, 1910 and 1912,or Further Advances in Physiology, Hill, London and New York, 1909;Van Valkenburg, Folia neurbbiologica, 1910, 4, 335. GENERAL PHYSIOLOGY OF THE CEREBRUM. 187 granular layer, and the infragranular layer (4 and 5), comprisingthe pyramidal and fusiform cells internal Stock Photo

RM2CE7G6N–. A text-book of physiology : for medical students and physicians . y, the granular layer (3 in Fig. 81), the supra-granular layer (2), comprising the pyramidal cells external to the * Cajal, Les nouvelles idees sur la structure du systeme nerveux, etc.,Paris 1894. t For a summary of these views consult Bolton, Brain, 1910 and 1912,or Further Advances in Physiology, Hill, London and New York, 1909;Van Valkenburg, Folia neurbbiologica, 1910, 4, 335. GENERAL PHYSIOLOGY OF THE CEREBRUM. 187 granular layer, and the infragranular layer (4 and 5), comprisingthe pyramidal and fusiform cells internal

Brain, Cajal stain. Light microscope X150 at 10 cm wide. Stock Photo

RF2TC8GW1–Brain, Cajal stain. Light microscope X150 at 10 cm wide.

RAMON AND CAJAL, Santiago (Petilla of Aragon, Navarre 1852-Madrid, 1934). Spanish histologist, physician and pathologist. Stock Photo

RMBG8HT4–RAMON AND CAJAL, Santiago (Petilla of Aragon, Navarre 1852-Madrid, 1934). Spanish histologist, physician and pathologist.

Telencephalon showing brain convolutions in cross section. Photomicrograph, Cajal stain. Stock Photo

RF2TGPK6K–Telencephalon showing brain convolutions in cross section. Photomicrograph, Cajal stain.

medicine, anatomy, nerve cell, parasagittal section in the cerebellum of a newborn, drawing by Ramon Cajal (1852 - 1934), 1894, Additional-Rights-Clearences-Not Available Stock Photo

RMDDYCCG–medicine, anatomy, nerve cell, parasagittal section in the cerebellum of a newborn, drawing by Ramon Cajal (1852 - 1934), 1894, Additional-Rights-Clearences-Not Available

Santiago Ramon y Cajal bust, sculpted by Federico Zambrano Domenech, 2021 Stock Photo

RF2RHWXCW–Santiago Ramon y Cajal bust, sculpted by Federico Zambrano Domenech, 2021

Santiago Ramon y Cajal portrait on Spain 50 pesetas banknote (1935) closeup, Spanish pathologist, pioneer of modern neuroscience, Nobel Prize winner. Stock Photo

RF2DE2H9T–Santiago Ramon y Cajal portrait on Spain 50 pesetas banknote (1935) closeup, Spanish pathologist, pioneer of modern neuroscience, Nobel Prize winner.

Multipolar neuron of the anterior horn of the spinal cord showing the meshwork of neurofibrils present in the soma and dendrites. Cajal's silver nitra Stock Photo

RF2E9GY3C–Multipolar neuron of the anterior horn of the spinal cord showing the meshwork of neurofibrils present in the soma and dendrites. Cajal's silver nitra

RMF4GK7R–SANTIAGO RAMON y CAJAL (1852-1934) Spanish pathologist who specialised in studies of the brain

RM2BDYNAF–Cajal, Pes Hippocampi Major

Microscopic Brain Structure, Cajal, 1904 Stock Photo

RMHRP15H–Microscopic Brain Structure, Cajal, 1904

Saturated reconstruction of a volume of neocortex. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Massachus Stock Photo

RM2G36Y5D–Saturated reconstruction of a volume of neocortex. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Massachus

Purkinje Cells Based on Cajal Stock Photo

RM2BDX5M3–Purkinje Cells Based on Cajal

. Brains of rats and men; a survey of the origin and biological significance of the cerebral cortex. Cerebral cortex; Rats -- Behavior; Psychology, Comparative; Brain -- physiology; Psychology, Comparative; Cerebral Cortex. ORIGINS OF THE CEREBRAL CORTEX 89. Fig. 16.—Structure of the human cerebral cortex in the postcentral gyrus, method of Golgi. After Ramon y Cajal. The cortical layers as enumerated by Cajal are indicated at the left; those of Brodmann at the right.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - c Stock Photo

RMRH7YJ7–. Brains of rats and men; a survey of the origin and biological significance of the cerebral cortex. Cerebral cortex; Rats -- Behavior; Psychology, Comparative; Brain -- physiology; Psychology, Comparative; Cerebral Cortex. ORIGINS OF THE CEREBRAL CORTEX 89. Fig. 16.—Structure of the human cerebral cortex in the postcentral gyrus, method of Golgi. After Ramon y Cajal. The cortical layers as enumerated by Cajal are indicated at the left; those of Brodmann at the right.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - c

RF2RHWXBJ–Santiago Ramon y Cajal bust, sculpted by Federico Zambrano Domenech, 2021

RF2DE2H9X–Santiago Ramon y Cajal portrait on Spain 50 pesetas banknote (1935) closeup, Spanish pathologist, pioneer of modern neuroscience, Nobel Prize winner.

Multipolar neurons of the anterior horn of the spinal cord. Cajal's silver nitrate Stock Photo

RF2E9GY31–Multipolar neurons of the anterior horn of the spinal cord. Cajal's silver nitrate

Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Massachusetts. USA The Beautiful Brain: The Drawings of San Stock Photo

RM2G36YTB–Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Massachusetts. USA The Beautiful Brain: The Drawings of San

RM2BDX5N6–Purkinje Cells Based on Cajal

The anatomy of the nervous system, from the standpoint of development and function . ed like ahorseshoe and joins together the two olfactory bulbs. This part can be readily-dissected out in the sheeps brain (Fig. 199), but is poorly developed in man. Theremaining portion, and in man the chief component, joins the pyriform areasof the two hemispheres together (Cajal, 1911). We are now sufficiently acquainted with the anatomy of the rhinencephalonto undertake a study of the structure and connections of its various parts.Because of the wealth of detail which this subject offers we must confine ou Stock Photo

RM2AWED34–The anatomy of the nervous system, from the standpoint of development and function . ed like ahorseshoe and joins together the two olfactory bulbs. This part can be readily-dissected out in the sheeps brain (Fig. 199), but is poorly developed in man. Theremaining portion, and in man the chief component, joins the pyriform areasof the two hemispheres together (Cajal, 1911). We are now sufficiently acquainted with the anatomy of the rhinencephalonto undertake a study of the structure and connections of its various parts.Because of the wealth of detail which this subject offers we must confine ou

RM2G3701M–Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Massachusetts. USA The Beautiful Brain: The Drawings of San

RM2BDX5M0–Purkinje Cells Based on Cajal

A reference handbook of the medical sciences, embracing the entire range of scientific and practical medicine and allied science . ^ fibers supplying general tactilesensibility to the posterior third of the tongue andsome neighboring parts. The superior, or jugular,ganglion probably belongs to this component, as isknown to be the case in lower vertebrates, and itsfibers enter the spinal V. tract (Ramon y Cajal),doubtless terminating in the spinal V. nucleus. (2)Unspecialized visceral sensory fibers probably enter 309 Brain, Anatomy of REFERENCE HANDBOOK OF THE MEDICAL SCIENCES this nerve from Stock Photo

RM2AKB1C6–A reference handbook of the medical sciences, embracing the entire range of scientific and practical medicine and allied science . ^ fibers supplying general tactilesensibility to the posterior third of the tongue andsome neighboring parts. The superior, or jugular,ganglion probably belongs to this component, as isknown to be the case in lower vertebrates, and itsfibers enter the spinal V. tract (Ramon y Cajal),doubtless terminating in the spinal V. nucleus. (2)Unspecialized visceral sensory fibers probably enter 309 Brain, Anatomy of REFERENCE HANDBOOK OF THE MEDICAL SCIENCES this nerve from

Purkinje reurons from the pigeon cerebellum. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Massachusetts. Stock Photo

RM2G37015–Purkinje reurons from the pigeon cerebellum. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Massachusetts.

RM2BDX5MA–Purkinje Cells Based on Cajal

Psycho-therapy in the practice of medicine and surgery . Figure 2. Pyramidal Nerve Cells Found Chiefly in the Brain.—McKendriclt NERVOUS STRUCTURES. 71 of many mental phenomena which before hadgreatly puzzled them. The essay of Prof.Raymon y Cajal of Spain, which was awardedthe prize of the International Medical Congressa few years ago, is among the most importantcontributions to our knowledge of brain anatomyand physiology. Prof. Cajal showed that theprincipal elements in brain tissue are nerve cells,and that each cell is a distinct entity. Itsbranches, or filaments, form temporary con-. Figt Stock Photo

RM2AJ0KMY–Psycho-therapy in the practice of medicine and surgery . Figure 2. Pyramidal Nerve Cells Found Chiefly in the Brain.—McKendriclt NERVOUS STRUCTURES. 71 of many mental phenomena which before hadgreatly puzzled them. The essay of Prof.Raymon y Cajal of Spain, which was awardedthe prize of the International Medical Congressa few years ago, is among the most importantcontributions to our knowledge of brain anatomyand physiology. Prof. Cajal showed that theprincipal elements in brain tissue are nerve cells,and that each cell is a distinct entity. Itsbranches, or filaments, form temporary con-. Figt

Drawing of a pyramidal cell in the cerebral motor cortex by Santiago Ramon y Cajal (1852-1934). Pyramidal neurons (pyramidal cells) are a type of neuron found in areas of the brain including the cerebral cortex, the hippocampus, and the amygdala. Pyramida Stock Photo

RMG16DYK–Drawing of a pyramidal cell in the cerebral motor cortex by Santiago Ramon y Cajal (1852-1934). Pyramidal neurons (pyramidal cells) are a type of neuron found in areas of the brain including the cerebral cortex, the hippocampus, and the amygdala. Pyramida

Swissnapse, digital reconstruction from serial section electron micrographs. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue C Stock Photo

RM2G36Y6C–Swissnapse, digital reconstruction from serial section electron micrographs. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue C

A text-book of physiology for medical students and physicians . that the cells in this layer are especially con-cerned in the mediation of the higher psychical processes, while theinfragranular layer constitutes the mechanism for the more * Cajal, Les nouvelles idees sur la structure du systeme nerveux, etc.,Paris, 1894. t For a summary of these views consult Bolton, Brain, 1910, or Fur-ther Advances in Physiology, Hill, London and New York, 1909. 188 PHYSIOLOGY OF CENTRAL NERVOUS SYSTEM. deeply impressed and primitive instinctive reactions. In thematter of lamination and distinct variations i Stock Photo

RM2AWKMJT–A text-book of physiology for medical students and physicians . that the cells in this layer are especially con-cerned in the mediation of the higher psychical processes, while theinfragranular layer constitutes the mechanism for the more * Cajal, Les nouvelles idees sur la structure du systeme nerveux, etc.,Paris, 1894. t For a summary of these views consult Bolton, Brain, 1910, or Fur-ther Advances in Physiology, Hill, London and New York, 1909. 188 PHYSIOLOGY OF CENTRAL NERVOUS SYSTEM. deeply impressed and primitive instinctive reactions. In thematter of lamination and distinct variations i

RMG16DYJ–Drawing of a pyramidal cell in the cerebral motor cortex by Santiago Ramon y Cajal (1852-1934). Pyramidal neurons (pyramidal cells) are a type of neuron found in areas of the brain including the cerebral cortex, the hippocampus, and the amygdala. Pyramida

Electron micrograph of a dendritic spine. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Massachusetts. USA Stock Photo

RM2G36YB7–Electron micrograph of a dendritic spine. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Massachusetts. USA

. The development of the chick; an introduction to embryology . matter and develop relatively late (aboutsixteen days, Ramon y Cajal). III. The Development of the Brain Unfortunately the later development of the brain of birdshas not been fully studied. The following account is thereforefragmentary. It is based mainly on a dissection and sections ofthe brain of chicks of eight days incubation. Fig. 147 is a drawing of a dissection of the brain of an eight-day embryo. The left half of the brain has been removed, andthe median wall of the right cerebral hemisphere also. Thedetails of the cut sur Stock Photo

RM2CNF7E9–. The development of the chick; an introduction to embryology . matter and develop relatively late (aboutsixteen days, Ramon y Cajal). III. The Development of the Brain Unfortunately the later development of the brain of birdshas not been fully studied. The following account is thereforefragmentary. It is based mainly on a dissection and sections ofthe brain of chicks of eight days incubation. Fig. 147 is a drawing of a dissection of the brain of an eight-day embryo. The left half of the brain has been removed, andthe median wall of the right cerebral hemisphere also. Thedetails of the cut sur

Santiago Ramón y Cajal (1852-1934) was a Spanish pathologist, histologist, neuroscientist, and Nobel laureate (1906). His pioneering investigations of the microscopic structure of the brain were original: he is considered by many to be the father of moder Stock Photo

RMG15D7M–Santiago Ramón y Cajal (1852-1934) was a Spanish pathologist, histologist, neuroscientist, and Nobel laureate (1906). His pioneering investigations of the microscopic structure of the brain were original: he is considered by many to be the father of moder

An astrocyte in the human hippocampus. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Massachusetts. USA T Stock Photo

RM2G36YRF–An astrocyte in the human hippocampus. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Massachusetts. USA T

. The development of the chick; an introduction to embryology . atter antl develop relatively late (aboutsixteen days, Ramon y Cajal). 111. TiiK Development of the Brain Unfortunately the later development of the ])i-ain of birdshas not been fully studied. The following account is thereforefragmentary. It is based mainly on a dissection and sections ofthe brain of chicks of eight days incubation. Fig. 147 is a drawing of a dissection of the brain of an eight-day embryo. The left half of the brain has l)een removed, andthe median wall of the right cerebral hemisphere also. Thedetails of the cut Stock Photo

RM2CPN9JD–. The development of the chick; an introduction to embryology . atter antl develop relatively late (aboutsixteen days, Ramon y Cajal). 111. TiiK Development of the Brain Unfortunately the later development of the ])i-ain of birdshas not been fully studied. The following account is thereforefragmentary. It is based mainly on a dissection and sections ofthe brain of chicks of eight days incubation. Fig. 147 is a drawing of a dissection of the brain of an eight-day embryo. The left half of the brain has l)een removed, andthe median wall of the right cerebral hemisphere also. Thedetails of the cut

RMHRP15K–Purkinje Cells, Cajal, 1899

Motor neuron synapsing with skeletan muscle cells. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Massachus Stock Photo

RM2G36YC2–Motor neuron synapsing with skeletan muscle cells. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Massachus

. Brain mechanisms and learning, a symposium. Psychophysiology; Learning, Psychology of. 584 BRAIN MECHANISMS AND LEARNING electrophysiological experiments (Adcy, Sunderland and Dunlop, 1957; Adcy, Dunlop and Sunderland, 1958). In the trained animal, the phase ciistribution is totally reversed, taking on an aspect consistent with path- ways suggested by Cajal, running from the entorhinal area to the dorsal hippocampus. The probable significance ol these fnidings is turther exemplified by the observations that in animals in late training, awaiting the opportunity to make an approach periormance Stock Photo

RMRH8BB6–. Brain mechanisms and learning, a symposium. Psychophysiology; Learning, Psychology of. 584 BRAIN MECHANISMS AND LEARNING electrophysiological experiments (Adcy, Sunderland and Dunlop, 1957; Adcy, Dunlop and Sunderland, 1958). In the trained animal, the phase ciistribution is totally reversed, taking on an aspect consistent with path- ways suggested by Cajal, running from the entorhinal area to the dorsal hippocampus. The probable significance ol these fnidings is turther exemplified by the observations that in animals in late training, awaiting the opportunity to make an approach periormance

Pyramidal Cell in Cerebral Cortex, Cajal Stock Photo

RMHRP2BY–Pyramidal Cell in Cerebral Cortex, Cajal

Whole brain picture information through Magnetic Resoance Imaging MRI. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambrid Stock Photo

RM2G36YJB–Whole brain picture information through Magnetic Resoance Imaging MRI. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambrid

RMRH7YF8–. Brains of rats and men; a survey of the origin and biological significance of the cerebral cortex. Cerebral cortex; Rats -- Behavior; Psychology, Comparative; Brain -- physiology; Psychology, Comparative; Cerebral Cortex. CORPUS STRIATUM OF MAMMALS 113 from the hypothalamus and thalamus and which dis- charge fibers through the olfactory projection tract of Cajal into the motor centers of the hypothalamus and cerebral peduncle. They probably serve chiefly higher correlations of smell, taste, and somesthetic sensibility for feeding and visceral reflexes. olfactorij arzQ I. -^globus pallidus

RMHRP2C0–Pyramidal Cell in Cerebral Cortex, Cajal

Santiago Ramón y Cajal (May 1, 1852 - October 17, 1934) was a Spanish pathologist, histologist, neuroscientist, and Nobel laureate. He was skilled at drawing, and hundreds of his illustrations of brain cells are still used for educational purposes today. His early work focused on the pathology of inflammation, the microbiology of cholera, and the structure of epithelial cells and tissues, before turning his attention to the central nervous system. Stock Photo

RMT96KKT–Santiago Ramón y Cajal (May 1, 1852 - October 17, 1934) was a Spanish pathologist, histologist, neuroscientist, and Nobel laureate. He was skilled at drawing, and hundreds of his illustrations of brain cells are still used for educational purposes today. His early work focused on the pathology of inflammation, the microbiology of cholera, and the structure of epithelial cells and tissues, before turning his attention to the central nervous system.

Santiago RamÌ n y Cajal, Spanish Neuroscientist Stock Photo

RMHRKP7E–Santiago RamÌ n y Cajal, Spanish Neuroscientist

The labyrinth of the inner ear. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Massachusetts. USA The Beau Stock Photo

RM2G3706J–The labyrinth of the inner ear. Brain exhibition Inside MIT Museum Building at 265 Massachusetts Avenue Cambridge, Boston Massachusetts. USA The Beau

. Brain mechanisms and learning, a symposium. Psychophysiology; Learning, Psychology of. C. ESTABLE 311 orderly and systematic review of the neurohistological bases of neuro- physiology, is to discriminate between the various types of contacts of a neurone. The second requirement must be the functional elucidation of such contacts.. Fig. 2 Dendro-dendritic contact. Photo-micrograph of cerebellum of cat showing a typical dendro-dendritic synapse (Dd. syn.) between grains. Gr. = grains. (Golgi-Cajal method). Each neurone has two kinds oi contacts: (A) insulation and nutrition (neuroglial) contac Stock Photo

RMRH7W3R–. Brain mechanisms and learning, a symposium. Psychophysiology; Learning, Psychology of. C. ESTABLE 311 orderly and systematic review of the neurohistological bases of neuro- physiology, is to discriminate between the various types of contacts of a neurone. The second requirement must be the functional elucidation of such contacts.. Fig. 2 Dendro-dendritic contact. Photo-micrograph of cerebellum of cat showing a typical dendro-dendritic synapse (Dd. syn.) between grains. Gr. = grains. (Golgi-Cajal method). Each neurone has two kinds oi contacts: (A) insulation and nutrition (neuroglial) contac

RMHRH5YP–Santiago RamÌ n y Cajal, Spanish Neuroscientist

. Contributions to embryology. Embryology. 374 THE DEVELOPMENT OF CERTAIN FEAiJUES OF THE CEREBELLUM. cells, constitutes a dejiot for rciiifoifoment of other layers, or disappears in part. The most general ^•iev is that of C'ajal, that the disappearance of the outer nuclear layer rej^resents merely a change of position. In the human brain these cells are disappearing at a time when, as is easily seen in figures 5 and 6, the increase in cerebellar surface is very great. The number of cells in the outer nuclear layer, seen in figure 1, is very striking; but when we com- pare figure 4 (a cross-s Stock Photo

RMRE86A9–. Contributions to embryology. Embryology. 374 THE DEVELOPMENT OF CERTAIN FEAiJUES OF THE CEREBELLUM. cells, constitutes a dejiot for rciiifoifoment of other layers, or disappears in part. The most general ^•iev is that of C'ajal, that the disappearance of the outer nuclear layer rej^resents merely a change of position. In the human brain these cells are disappearing at a time when, as is easily seen in figures 5 and 6, the increase in cerebellar surface is very great. The number of cells in the outer nuclear layer, seen in figure 1, is very striking; but when we com- pare figure 4 (a cross-s

Santiago RamÌ n y Cajal, Father of Modern Neuroscience Stock Photo

RMHRNPN2–Santiago RamÌ n y Cajal, Father of Modern Neuroscience

. Carnegie Institution of Washington publication. 374 THE DEVELOPMENT OF CERTAIN FEAiJRES OF THE CEREBELLUM. cells, constitutes a depot for reinforcement of other layers, or disappears in part. The most general view is that of Cajal, that the disappearance of the outer nuclear layer represents merely a change of position. In the human brain these cells are disappearing at a time when, as is easily seen in figures 5 and 6, the increase in cerebellar surface is very great. The number of cells in the outer nuclear layer, seen in figure 1, is very striking; but when we com- pare figure 4 (a cross- Stock Photo

RMRFT37D–. Carnegie Institution of Washington publication. 374 THE DEVELOPMENT OF CERTAIN FEAiJRES OF THE CEREBELLUM. cells, constitutes a depot for reinforcement of other layers, or disappears in part. The most general view is that of Cajal, that the disappearance of the outer nuclear layer represents merely a change of position. In the human brain these cells are disappearing at a time when, as is easily seen in figures 5 and 6, the increase in cerebellar surface is very great. The number of cells in the outer nuclear layer, seen in figure 1, is very striking; but when we com- pare figure 4 (a cross-

RMHRP75A–Santiago RamÌ n y Cajal, Spanish Neuroscientist

RMRH7YHY–. Brains of rats and men; a survey of the origin and biological significance of the cerebral cortex. Cerebral cortex; Rats -- Behavior; Psychology, Comparative; Brain -- physiology; Psychology, Comparative; Cerebral Cortex. 90 BRAINS OF RATS AND MEN characteristic synaptic junctions with fibers from other parts. Figure i6 illustrates the structure of the human cortex of the postcentral gyrus (somesthetic. Fig. 17.—Two neurons characteristic of neopallial cortex. At the left is a pyramidal neuron (type I of Golgi) from the rabbit (after Cajal), whose axon (a) enters the white matter (<^), fi

RMHRKMXR–Santiago RamÌ n y Cajal, Spanish Neuroscientist

$. Brain mechanisms and learning, a symposium. Psychophysiology; Learning, Psychology of. .â¢Â»jUi/D D.ssyn.. ,-^^ 7k â f* Fig. 7 Dendro-somatic contact, (a) Schematic drawing reproduced from Fig. 23.4 of Cajal's Texiura del sisteiiia iieri'ioso del hoinhre y los vertehrados. In this figure Cajal drew the ending of the retinipetal fibre on an aniacrine cell and included a dendro-dendritic connection between amacrines and ganglionic cells, {h) This photomicrograph serves to demonstrate the relation- ship between amacrine cells and ganglionic neurones of retina, as well as the ending on the amacr Stock Photo$

RMRH7W18–. Brain mechanisms and learning, a symposium. Psychophysiology; Learning, Psychology of. .â¢Â»jUi/D D.ssyn.. ,-^^ 7k â f* Fig. 7 Dendro-somatic contact, (a) Schematic drawing reproduced from Fig. 23.4 of Cajal's Texiura del sisteiiia iieri'ioso del hoinhre y los vertehrados. In this figure Cajal drew the ending of the retinipetal fibre on an aniacrine cell and included a dendro-dendritic connection between amacrines and ganglionic cells, {h) This photomicrograph serves to demonstrate the relation- ship between amacrine cells and ganglionic neurones of retina, as well as the ending on the amacr

RMHRNPN3–Santiago RamÌ n y Cajal, Father of Modern Neuroscience

. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. COMPUTATION IN CEPHALOPOD LEARNING SYSTEM vert B 207 Figure 12. Sagittal section of the brain of Sepia. Note that there is no median interior frontal or subfrontal. The superior frontal has a matrix structure like that of Octopus. The vertical lobe has a rather different structure. Cajal silver stain, b.a., anterior basal; h. med., median basal; fr. ].. interior frontal; fr. s., superior frontal; prec., precommissural; subv., subvertical; v.. vertical. (Fig. 12). In an early experiment it was shown that inter- ruption of the Stock Photo

RMRHMYBB–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. COMPUTATION IN CEPHALOPOD LEARNING SYSTEM vert B 207 Figure 12. Sagittal section of the brain of Sepia. Note that there is no median interior frontal or subfrontal. The superior frontal has a matrix structure like that of Octopus. The vertical lobe has a rather different structure. Cajal silver stain, b.a., anterior basal; h. med., median basal; fr. ].. interior frontal; fr. s., superior frontal; prec., precommissural; subv., subvertical; v.. vertical. (Fig. 12). In an early experiment it was shown that inter- ruption of the

RMRHMYAJ–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. COMPUTATION IN CEPHALOPOD LEARNING SYSTEM vert B 207 Figure 12. Sagittal section of the brain of Sepia. Note that there is no median interior frontal or subfrontal. The superior frontal has a matrix structure like that of Octopus. The vertical lobe has a rather different structure. Cajal silver stain, b.a., anterior basal; h. med., median basal; fr. ].. interior frontal; fr. s., superior frontal; prec., precommissural; subv., subvertical; v.. vertical. (Fig. 12). In an early experiment it was shown that inter- ruption of the

. Brain mechanisms and learning, a symposium. Psychophysiology; Learning, Psychology of. LEADS ? 'b 20 MSEC ENTORHINAL AREA LEADS. ENTORHINAL AREA -0-5 DORSAL HIPP^ LEADS fRFGinW CA4) ^ * LEADS VA / ^^0 5 V SEC ^ -0-5- l ^ ^^ SEC Fig. 6 Cross-correlation functions in late training, from the same animal as in Figs. 4 and 5. By contrast with Fig. 5, the entorhinal area now leads hippocampal region CA4 by as much as 65 msec, and CA, by 20-25 msec. These findings are consistent with activity following the pathways proposed by Cajal (see text). CA4, may be interpreted on the basis of such a mecha Stock Photo

RMRH8BAK–. Brain mechanisms and learning, a symposium. Psychophysiology; Learning, Psychology of. LEADS ? 'b 20 MSEC ENTORHINAL AREA LEADS. ENTORHINAL AREA -0-5 DORSAL HIPP^ LEADS fRFGinW CA4) ^ * LEADS VA / ^^0 5 V SEC ^ -0-5- l ^ ^^ SEC Fig. 6 Cross-correlation functions in late training, from the same animal as in Figs. 4 and 5. By contrast with Fig. 5, the entorhinal area now leads hippocampal region CA4 by as much as 65 msec, and CA, by 20-25 msec. These findings are consistent with activity following the pathways proposed by Cajal (see text). CA4, may be interpreted on the basis of such a mecha

Cajal brain Stock Photos and Images

Cajal brain Stock Photos and Images

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