Brain Function Flashcards
Spinocerebellum
Control of precision voluntary movement. Damage can cause hypotonia and disruptions of rhythmic patterns of walking.
Cerebrocerebellum
Posterior lobes. Involved in complex motor, perceptual, and cognitive tasks
Lesions lean to a decomposition of movement and timing.
Dysmetria
The underestimation or overestimation of a necessary movement toward a target
Commonly seen with cerebellar disorders
Asthenia
Generalized weakness
Seen in people with cerebellar lesions.
Cerebellum
Large influence on movements and damage to this area can lead to ataxic movements.
Unable to control head and eye movement, postural sway, and delayed equilibrium responses.
Gaze evoked nystagmus
Nonvoluntary rhythmic movement of the eye occurs when the cerebellum is unable to hold the gaze on an object especially in the lateral position. The eyes drift back toward midline and then immediately back to the target.
Present with a brainstem or midline Clerebellar lesion
Ocular dysmetria
When the eyes move from one target to another (know as saccadic movement) or when attempting to follow a target (known as smooth pursuit).
Frontal lobe
Responsible for the highest levels of cognitive processing, control of emotion, and behavior. A persons personality is established by their frontal lobe.
Lesions affect a persons temperament, personality, judgement, lack of inhibition, withdrawal, and irritability.
Right hemisphere syndrome
The inability to orient the body within external space and generate appropriate motor responses.
Hemineglect on the left side of the body occurs.
Problems with relationships occur and socialization.
Frontal lobe basics
Thought processes, behavior, emotion
Broca area
Language and expression
Temporal lobe
Hearing, understanding, speech, language
Parietal lobe
Body sensations, visual and spatial perception.
Occipital lobe
Vision
Wernicke area
Language comprehension
