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Lecture notes and notes from book (Fundamentals of Human Neuropsychology)

4 Pages
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Department
Psychology
Course Code
PSY318H5
Professor
Melissa Holmes

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Highly organized college professor
{
Became disorganized, showed little emotion, and began to miss deadlines
{
Scores on intelligence and memory tests were superior
{
Showed impairment on frontal lobe tests
{
E.L.
{
Portrait: Losing Frontal-Lobe Functions
1) Motor: Area 4
{
Lateral area 6: Premotor cortex
Area 8: Frontal eye field
Area 8A: Supplementary eye field
Can be divided into:
|
2) Premotor: Areas 6 and 8
{
Subdivisions
{
Anatomy of the Frontal Lobes
Area of the frontal lobe that receives input from the dorsomedial nucleus of the thalamus
{
Dorsolateral Prefrontal Cortex (9 & 46)
|
Also called Orbitofrontal cortex
Inferior Prefrontal Cortex (11, 12, 13, & 14)
|
Sometimes considered part of the cingulate
Medial Frontal Cortex (25 & 32)
|
Divisions
{
3) Prefrontal Cortex
{
Many areas of the frontal lobe are multimodal
{
Slide 4
Projects to spinal motor neurons & cranial nerves that control the face
{
Projects to the basal ganglia and the red nucleus
{
Motor Cortex
{
Projections to the spinal cord
{
Projections to the motor cortex
{
Premotor
{
Connections of the Motor and Premotor Areas
Receives projections from parietal areas PE and PF
{
Receives projections from dorsolateral prefrontal area (9&46)
{
Premotor
{
Receive from PG and the superior colliculus
{
Eye fields (8 & 8A)
{
Connections of the Motor and Premotor Areas
Reciprocal connections with the posterior parietal and STS
{
Extensive connections with the cingulate cortex, basal ganglia, and superior colliculus
{
Receives input from dopaminergic cells in tegmentum
{
Dorsolateral Prefrontal Area
{
Connections of the Prefrontal Areas
amygdala, STS, superior temporal gyrus (audition), inferotemporal cortex (vision),
gustatory cortex, somatosensory cortex, olfactory cortex, dopaminergic cells in
tegmentum
|
Receives from the temporal lobe:
{
Projects to hypothalamus and amygdala
{
Orbitofrontal Cortex
{
Connections of the Prefrontal Areas
The Frontal Lobes
Monday, April 05, 2010
8:06 PM
PSY295 -Neuropsychology Page 1
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Description
TheFrontalLobes Monday,April 05,2010 8:06PM Portrait:LosingFrontal-LobeFunctions { E.L. { Highlyorganizedcollegeprofessor { Becamedisorganized,showedlittleemotion,andbegantomissdeadlines { Scoresonintelligenceandmemorytestsweresuperior { Showedimpairmentonfrontallobetests Anatomyof the FrontalLobes { Subdivisions { 1)Motor: Area4 { 2)Premotor:Areas6and 8 Canbedividedinto: Lateralarea6: Premotorcortex Medialarea6: Supplementarymotorcortex Area8: Frontaleyefield Area8A:Supplementaryeyefield Slide4 { 3)PrefrontalCortex { Areaofthefrontallobethatreceivesinputfromthedorsomedialnucleusofthethalamus { Divisions DorsolateralPrefrontalCortex(9&46) InferiorPrefrontalCortex(11,12,13, &14) AlsocalledOrbitofrontalcortex MedialFrontalCortex(25&32) Sometimesconsideredpartofthecingulate { Manyareas ofthefrontallobearemultimodal ConnectionsoftheMotorandPremotorAreas { MotorCortex { Projectstospinalmotorneurons&cranialnervesthatcontroltheface { Projectstothebasalgangliaandthered nucleus { Premotor { Projectionstothespinalcord { Projectionstothemotorcortex ConnectionsoftheMotorandPremotorAreas { Premotor { ReceivesprojectionsfromparietalareasPEandPF { Receivesprojectionsfromdorsolateralprefrontalarea(9&46) { Eyefields(8&8A) { ReceivefromPGandthesuperiorcolliculus ConnectionsofthePrefrontalAreas { DorsolateralPrefrontalArea { ReciprocalconnectionswiththeposteriorparietalandSTS { Extensiveconnectionswiththecingulatecortex,basalganglia,andsuperiorcolliculus { Receivesinputfromdopaminergiccellsintegmentum ConnectionsofthePrefrontalAreas { OrbitofrontalCortex { Receivesfromthetemporallobe: amygdala,STS,superiortemporalgyrus(audition),inferotemporalcortex(vision), gustatorycortex,somatosensorycortex,olfactorycortex,dopaminergiccellsin tegmentum { Projectstohypothalamusandamygdala www.notesolution.com
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