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Neurosci Exam One
Introductory Neuroscience
58
Science
Undergraduate 1
09/30/2012

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Term
Luigi Galvani
Definition
1791: Discovered that electrical stimulation could activate nerves and muscles
Term
Camillo Golgi
Definition
1873: Discovered the "black reaction", Firmly believed in the reticular theory even after others were using his black reaction to prove the neuron theory
Term
Reticular theory
Definition
INCORRECT thought that the NS is a continuous mesh-work of cytoplasm
Term
Neuron Theory
Definition
CORRECT thought that the nervous system consists of TONS of individual neurons
Term
Ramon y Cajal
Definition
1889:Used Golgi's black reaction to stain portions of cells; identified neurons as discrete and distinct units of the brain.
Speculated about direction of information flow in neurons.
Term
Charles Sherington
Definition
1897: Coined term synapse, proved physiology about the one-way direction and delay in transmission of neurons.
Outlined complex circuitry of reflexes, including excitatory and inhibitory connections that support reciporical inhibition.
Term
Otto Loewi
Definition
1921: Discovered the chemical basis of neural transmission (CORRECT)
Term
Herman Ebbinghaus
Definition
1885: Formalized the study of memory: Forgetting curve.
Created psychophysics based on the precision of physics discoveries.
Developed quantitative methods for measuring memory.
Term
Ivan Pavlov
Definition
1903: Reflex circuits for learning: Conditioned responses.
Food stimulation -> Gastric secretions
Controlled experiments to characterize conditioned responses.
Term
Karl Lashley
Definition
1929: Preformed knife cuts interrupting sensory and motor functions: Had little or no effect until much larger lesions were made.
Led to the idea of -> Equipotentiality and Mass Action: reduction in learning is proportional to amount of tissue damage on brain.
Term
Edward Tolman
Definition
1946: Showed latent learning and insight in rat experiments with mazes.
Also showed rats to develop cognitive maps with expectancies and use of insight.
Also showed rats were able to learn without reinforcement.
Pioneer of 'cognitive revolution'
Term
Latent Learning
Definition
Learning that isn't made obvious until the introduction of a reward or reinforcement is made. (Rats spontaneously taking detours after a maze is changed)
Term
Donald Hebb
Definition
1949: Cell assembly, noticed a network of neurons connected by plasticitiy is capable of representing a percept or concept
Term
Cell Assembly
Definition
Correlated action between two neurons strengthens the connection between them (increased receptors)
Term
Thomas Willis
Definition
1664: Published the first comprehensive volume on neuroanatomy.
Created modern terminology of brain areas (parietal...)
First full fledged neuroscientist, founded neurology. Correlated anatomy with function.
Term
Franz Joseph Gall
Definition
1800: Developed the idea that different cortical areas have distinct functions, the size of that area reflected the extent of that function: "Phrenology"
Term
Phrenology
Definition
A pseudoscience that links bumps on a person's head to that individual's personality and character. Measurements of skull -> Understanding of brain.
Term
Paul Broca
Definition
1861: Discovered the localization of speech areas (Broca's area)
Term
Carl Wernicke
Definition
1866: Discovered the part of the brain where language is understood.
Made the differentiation between speech formation and speech understanding.
Term
Gustav Fritsch & Julius Hitzig
Definition
1870: Stimulation maps: Stimulated cortical areas to prove contralateral control.
Led to sophisticated cortical mapping studies that characterized the motor and sensory homunculus and validated the theory of localization.
Term
Contralateral Control
Definition
Left side of brain controls right side of brain
Term
Forebrain
Definition
Telencephalon & Diencephalon
Term
Midbrain
Definition
Mesencephalon
Term
Hindbrain
Definition
Metencephalon & Myelencephalon
Term
Striatum
Definition
Telencephalon - Voluntary Motion
Term
Amygdala
Definition
Telencephalon - Emotion
Term
Hippocampus
Definition
Telencephalon - Memory Storage
Term
Cerebrum
Definition
Telencephalon - Association (Intelligence)
Term
Retina
Definition
Diencephalon - Vision
Term
Epithalamus
Definition
Diencephalon - Pineal Gland
Term
Thalamus
Definition
Diencephalon - Interface with cortex
Term
Hypothalamus
Definition
Diencephalon - Temperature, Sleep, and Motivation
Term
Pituitary Gland
Definition
Diencephalon - Hormonal control
Term
Midbrain
Definition
Mesencephalon (Midbrain) - Fiber tracts between anterior and posterior brain, optic lobes, and tectum.
Term
Cerebellum
Definition
Metencephalon - Coordination of complex muscular movements
Term
Pons
Definition
Metencephalon - Fiber tracts between cerebrum and cerebellum (Mammals only)
Term
Medulla
Definition
Myelencephalon - Reflex center of involuntary activities
Term
Coronal Plane
Definition
Cut between anterior and posterior side of body
Term
Horizontal Plane
Definition
Cut between inferior and superior.
Cut like a piece of paper parallel to the floor.
Term
Sagittal Plane
Definition
Cut down the middle of the eyes (Medial vs. Lateral)
Term
Rostral
Definition
Towards the nose
Term
Caudal
Definition
Towards the tail
Term
Lateral
Definition
Towards the outside
Term
Medial
Definition
Towards the middle
Term
Ventral
Definition
Towards the belly
Term
Dorsal
Definition
Towards the upper side of the body (Back)
(In upright humans, is towards the upper back of the brain)
Term
Inferior vs. Superior
Definition
Lower vs. Higher
Term
Meninges
Definition
Coverings of the brain: Pia, Arachnoid, Dura Mater.
Term
Pia
Definition
Innermost layer - Adheres to brain surface, follows sulci
Term
Arachnoid Mater
Definition
Middle layer of the meninges - Cerebospinal fluid flows between the arachnoid mater and the pia.
Term
Dura Mater
Definition
Most superior meningeal layer. Hardest and toughest layer - leather like - protects brain from displacement.
Term
Frontal Lobe
Definition
Front of brain, associated with reasoning, motor skills, higher level cognition, and expressive language.
Back of the frontal lobe lies the motor cortex.
Term
Parietal Lobe
Definition
Middle of brain. Associated with processing tactile sensory information: pressure, touch, pain.
Somatosensory cortex lies here, essential to the processing of bodily senses.
Term
Temporal Lobe
Definition
Bottom section of brain.
Location of primary auditory cortex as well as hippocampus. Heavily associated with the forming of memories.
Term
Occipital Lobe
Definition
Back of brain. Associated with interpreting visual stimuli and information. Home of the primary visual cortex - recieves information from retinas of the eyes.
Term
Functional Systems
Definition
-Motor
-Memory & Cognition
-Emotion
Term
Contralateral Control Somatosensory
Definition
CROSS at Spinal Cord
Term
Contralateral Control Motor System
Definition
CROSS at Caudal Medulla
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