Lecture 12 Flashcards
Archicortex
associated with limbic system, including hippocampus
Paleocortex
olfactory system
Neocortex
constitutes ~90% of cerebral cortex
Pyramidal cells
Send output information to other cells
Synapse within cortex
Fusiform cells
Send electrical output information
Stellate (granule) cells
Type of interneuron
Communicate within the cortex and regulate cortex itself
Superficial layers deal with communications ____ the cerebral cortex
within
Deep layers deal with communications ____ the cerebral cortex
To/From
Association projection of superficial layers deal with what type of communication?
Ipsilateral communication. It will relate information within the same hemisphere
Callosal projection of superficial layers deal with what type of communication?
Contralateral communication. It will relate information between the two hemispheres
Primary sensory cortex
Discriminates among different intensities (loud or soft) and qualities (sharp or fluffy) of sensory information. This is where you sense if it hot or cold, sharp or soft, etc
Secondary sensory cortex
Performs more complex analysis of sensation. Where you are able to tell WHAT it is, especially with touch like I’m touching my phone.
Primary motor cortex
Provides descending control of motor output. Before doing something, we send information to postural muscles to prepare. Feedforward
Motor planning areas
Organize movements.
Association cortex
Controls behavior, interprets sensation, and processes emotions and memories.
inferior colliculus
important relay point for auditory information as it travels from the inner ear to the auditory cortex
Primary somatosensory
Discriminates shape, texture or size of objects
primary auditory
Conscious discrimination of loudness and pitch of sounds
Primary visual
Distinguishes intensity of light, shape, size and location of objects
Primary vestibular
Discriminates among head positions and head movements
Secondary somatosensory
Stereognosis and memory of the tactile and spatial environment
Stereognosis
mental perception of depth or three dimensionality. The ability to perceive the form of solid objects by touch
Secondary visual
Analysis of motion, color; control of visual fixation
Secondary auditory
Classification of sounds
