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27 Cards in this Set

  • Front
  • Back
Central fissure
separates each hemisphere in anterior and posterior parts
Function of the area in from of central fissure
Lateral fissure
separates each hemisphere in dorsal and ventral parts
Longitudinal fissure
separates right hemisphere from left
Brodman map
Broadman examined organization of cells and fibers in the cortex using Nissl stain for cell bodies and myelin stains for axons. Brodmann divided cortex into 50 cytoarchitectural areas acording to cell size, cell density, number of layers in each region and density of myelinated axons. He designated number to each area, which one having discrete functions, although he divided area based only on anatomy
Brocas area
region of the left hemisphere that is important to speech output, Brodmans area 44
Characteristics of both sensory and motor cortex
1. areas are mapped out
2.areas are distorted
3.upside backwards for motor, vision and touch
what does damage of primary motor cortex lead to?
muscle weakness on contralateral side
Primary visual cortex
Brodman area 18
Association area
area of the brain where information from multiple modalities is processed- language, compassion and foresight
3 main areas of frontal lobe
primary motor, premotor and prefrontal
Name parts of prefrontal part
dorsolateral, medial and orbital
Frontal lobe damage
ability to organize and sequence behavior, ability to modulate behavior (especially initiation or cessation), ability to generate appropriate emotional response, ability to use strategies and tags to retrieve memories
Parietal lobe functions
integrating information from sensory modalities, integrating it with memory, integrating internal and external information. Main feature - multimodal processing
inability to read
inability to write
inalbility to perform skilled motor movement in abstract manner
syndrome in which individuals ignore information on one side of space (do not pay attention)
Temporal lobe functions
memory, visual item recognition, auditory processing, emotion
a syndrome where person can recognize objects in one sensory modality but cannot in any others
Cholinergic NT system
NT- acetylcholine
site of origin-basal forebrain
projections-diffuse cortical regions
receptor types-muscarinic and nicotinic
behavioral effects - overall cortical excitability, attention, memory
Dopaminergic NT system
NT-dopamine, 3 subsystems- nigrostriatal, mesolimbic and mesocortical
originates in substantia nigra, projects to dorsal striatum, f-n - motor activity
originates in ventral tegmental area, projects to prefrontal cortex and limbic regions, f-n - reward
originates in ventral tegmental area, projects to prefrontal cortex, f-n working memory, planning
NT - norepinephrine, receptors alpha and beta, 2 subsystems
1. - originates in ventrolateral tegmental area, projects to hypothalamus, function in feeding and sexual behavior
2 - originates in locus ceruleus, projects to thalamus, hypothalamus and cortex, function in attention, sleep and working memory
NT - serotonine, functions -sleep, mood, sexual behavior, eating, pain, memory, arousal
2 subsystems
1. originates in dorsal raphe nucleus, projects to cortex and thalamus
2.originates in medial raphe nucleus, projects to limbic system