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

10 Pages
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Department
Psychology
Course Code
PSY318H5
Professor
Melissa Holmes

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Erratic behaviour
{
Experienced a seizure and a left temporal lobe tumor was found
{
Tumor removed and was eventually able to return to his job
{
Persistant language deficits: word-finding difficulties
{
H.H.
{
Portrait: Living With Temporal Lobe Damage
}uvv[ðíUðîUîî
|
{
Inferotemporal or TE
|
}uvv[îìUîíUïóUïô
|
Ventral Stream of Visual Information -
{
Lateral surface
{
Subdivisions of the Temporal Cortex
Area inside Sylvian Fissure
{
Gustatory Cortex
{
Auditory association cortex
{
Insula
{
Subdivisions of the Temporal Cortex
Area inside Superior Temporal Sulcus
{
Receives input from auditory, visual, and somatic regions
{
Multimodal or Polymodal Cortex
{
Subdivisions of the Temporal Cortex
Slide 6
Includes the amygdala and adjacent cortex, the hippocampus and surrounding cortex, and
the fusiform gyrus
{
Medial Temporal Cortex
{
Subdivisions of the Temporal Cortex
Posterior end of the temporal lobe
{
Areas TH & TF
{
Parahippocampal cortex
{
Subdivisions of the Temporal Cortex
Afferent projections from sensory systems
{
Efferent projections to the parietal and frontal association regions, limbic system, and basal
ganglia
{
Corpus Callosum
{
Anterior Commissure
{
Left and right connected via:
{
Connections of the Temporal Cortex
There are 5 types of cortical-cortical connections:
{
Incoming auditory and visual Information (ventral stream for both)
{
Stimulus recognition
{
1) Hierarchical Sensory Pathway
{
Connections of the Temporal Cortex
From Auditory cortex to Posterior Parietal
{
Detection of spatial location/movement
{
2) Dorsal Auditory Pathway
{
Connections of the Temporal Cortex
Parallel projections from auditory and visual areas to STS
{
3) Polymodal Pathway
{
Connections of the Temporal Cortex
The Temporal Lobes
Monday, April 05, 2010
8:06 PM
PSY295 -Neuropsychology Page 1
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PSY295 -Neuropsychology Page 2
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Parallel projections from auditory and visual areas to STS
{
Stimulus Categorization
{
3) Polymodal Pathway
{
From auditory and visual areas to the medial temporal lobe
{
Perforant Pathway (perirhinal to entorhinal to hippocamus)
{
Long-term memory
{
4) Medial Temporal Projection
{
Connections of the Temporal Lobe
Parallel projections from temporal auditory and visual cortex to the frontal cortex
{
Movement control
{
Short-term memory
{
Affect
{
5) Frontal Lobe Projection
{
Connections of the Temporal Cortex
So much going on in the temporal lobes!
{
Audition, object recognition (ventral stream), memory, emotion, biological motion, etc.
{
Identification and categorization of stimuli
{
Cross-modal matching (STS)
{
E.g., sensory processes
{
E.g., affective responses
{
E.g., spatial navigation
Theory of Temporal Lobe Function
Slide 16
Slide 17
Movements relevant to a species
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oo}Áµ}Pµ}Z[]vv]}v
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^}]o}Pv]]}v}^Z}Ç}(u]v_
{
Biological Motion
{
STS and Biological Motion
Imaging reveals activation in the STS during perception of biological motion
{
E.g., lip reading, mouth movement, hand grasp, body movement, eye gaze, etc.
{
Slide 19
STS cells are maximally responsive to particular types of biological motion
{
David Perrett and colleagues
{
Slide 20
Used fMRI to monitor cortical activity viewing a film
{
1) Extensive activity in the auditory and visual regions in the temporal lobe, in the STS and
cingulate regions
{
Hasson and colleagues
{
Visual Processing in the Temporal Lobe
2) Selective activation to precise moment-to-moment film content
{
3) Regions of the parietal and frontal lobes showed no intersubject coherence
{
Slide 22
Cells in area TE require complex features for activation (combination of characteristics)
{
Cells with similar selectivity cluster in vertical columns
{
Specificity of neurons is altered by experience
{
Eµ}v}v]vµ}(]]v^uu}Ç_]}
{
Tanaka and colleagues
{
Visual Processing in the Temporal Lobe
Are faces special?
Are faces special?
http://www.youtube.com/watch?v=3mbf1m-gAvE
{
Slide 26
Slide 27
Slide 28
PSY295 -Neuropsychology Page 3
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Description
TheTemporal Lobes Monday,April 05,2010 8:06PM Portrait:LivingWithTemporal Lobe Damage { H.H. { Erraticbehaviour { Experiencedaseizureandalefttemporallobetumorwasfound { Tumorremovedandwaseventuallyabletoreturntohisjob { Persistantlanguagedeficits:word-findingdifficulties SubdivisionsoftheTemporalCortex { Lateralsurface { Auditoryareas }KLL[Z77 { VentralStreamofVisualInformation- InferotemporalorTE }KLL[Z777 SubdivisionsoftheTemporalCortex { Insula { AreainsideSylvianFissure { GustatoryCortex { Auditoryassociationcortex SubdivisionsoftheTemporalCortex { MultimodalorPolymodalCortex { AreainsideSuperiorTemporalSulcus { Receivesinputfromauditory,visual,andsomaticregions Slide6 SubdivisionsoftheTemporalCortex { MedialTemporalCortex { Includestheamygdalaandadjacentcortex,thehippocampusandsurroundingcortex,and thefusiformgyrus SubdivisionsoftheTemporalCortex { Parahippocampalcortex { Posteriorendofthetemporallobe { AreasTH&TF ConnectionsoftheTemporal Cortex { Afferentprojectionsfromsensorysystems { Efferentprojectionstotheparietalandfrontalassociationregions,limbicsystem,andbasal ganglia { Leftandrightconnectedvia: { CorpusCallosum { AnteriorCommissure ConnectionsoftheTemporal Cortex { Thereare5typesofcortical-corticalconnections: { 1)HierarchicalSensoryPathway { IncomingauditoryandvisualInformation(ventralstreamforboth) { Stimulusrecognition ConnectionsoftheTemporal Cortex { 2)DorsalAuditoryPathway { FromAuditorycortextoPosteriorParietal { Detectionofspatiallocationmovement ConnectionsoftheTemporal Cortex { 3)PolymodalPathway { ParallelprojectionsfromauditoryandvisualareastoSTS www.notesolution.com
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