Frontal Lobe Flashcards
(48 cards)
primar motor area functions
- Movement selection
- Fine movements
- Motor strength
- Direction of movement
Pre-Motor areaa
pre-motor area lateral area medial area frontal eye area supplementary eye field Broca's Area
What area # is Broca’s Area
Area 44
Area 44 is ______-
broca’s area
pre-motor area functions
- Movement programming
- Corollary discharge (the world continues to stay stable despite the movement of our eyes)
- Motor strength
- Mirror neurons
- Eye movement
connections of motor and pre-motor areas
- motor cortex
- premotor cortex
- eye fields
motor cortex
- projects to spinal neurons and cranial nerves
- projects to the basal ganglia and the red nucleus
premotor ortex
- projects to spinal cord and spinal cortex
- receives projections from parietal areas and dorsolateral perfrontal area
eye fields
receive info from PG and the superior colliculus
symptoms of frontal lobe damage
disturbances of motor function
- loss of fine movement, speed, and strength
- loss of movement programming
- changes in voluntary gaze
loss of fine movement, speed, and strength is from damage to wehre
primary motor cortex
loss of movement programming is from damage to where
premotor or dorsolateral cortex
changes in voluntary gaze from damage to where
frontlal eye fields
where is the end of dorsal and ventral streams
dorsolateral PFC
3 connections of pre frontal cortex
Dorsolateral PFC
orbitofrontal PFC
ventromedial PFC
dorsolateral PFC connections
- With posterior parietal cortex
- The superior temporal sulcus
- With the basal ganglia, and superior colliculus
Orbitofrontal PFC connections
- With auditory regions of the superior temporal cortex
- Posterior central gyrus
- Superior temporal sulcus
- Visual regions of the inferior temporal cortex (Area TE)
- Limbic regions of the medial temporal areas (related to memory)
- Periaqueductal duct (pain perception)
- olfaction and gustation
prefrontal cortex functions
controls cognitive processes so that appropriate behaviours are selected at the correct time
internal cues
- temporal memory
- working memory
- feelings about something
- guide how we think
temporal memory
information collected from the dorsal and ventral streams
working memory
what are you thinking about in the here and the now
external cuews
- What someone or something in environment does that gives us feedback that we use to adjust internal cues
context cues
- Social interactions (orbitofrontal PFC)
autonoetic awareness
- self knowledge collected over a lifetime of experience
- Binding together the awareness of oneself as continuous through time
- Have a sense of who and how you are relative to everyone else around you