Chapter 18 - CNS Flashcards
1
Q
Agnosia
A
- The inability to recognize and object.
- The object’s previous meaning is no longer attached to it.
- Lesions of the sensory cortex involved with seeing, hearing, and feeling.
2
Q
Alexia
A
- The acquired inability to read.
- Lesions in the left occipital lobe and corpus callosum prevent incoming visual info from reaching the angular gyrus for linguistic interpretation.
3
Q
Broca’s Aphasia
A
- A language disorder characterized by a deficit in speech production and language output.
- MOTOR
- Can understand but can’t talk.
4
Q
Wernicke’s Aphasia
A
- Language disorder characterized by a deficit in speech production/language output AND language comprehension.
- Motor AND Sensory
- Can’t understand or talk
- Babbling/gibberish
5
Q
Asthenia
A
- Generalized weakness
- Sometimes seen in people with cerebellar lesions.
6
Q
Ataxia
A
- Lack of coordinated movement.
- Cerebellar dysfunction.
7
Q
Diaschisis
A
- Neural shock due to nerve injury and disruption of the neural pathway.
8
Q
Dysarthria
A
Speech disorder characterized by a disturbance in articulation
(the ability to produce speech).
9
Q
Dysdiadochokinesia
A
Inability to perform rapidly alternating movements.
10
Q
Dysmetria
A
- Underestimation or overestimation of a necessary movement toward a target.
- Cerebellar disorders.
11
Q
Proprioception
A
Sensory input from the muscles and joints about the body’s position and movement in space.
12
Q
Classical Conditioning
A
- Non-conditioned stimulus is paired with a conditioned stimulus to produce a conditioned response.
- Pavlov’s dogs
13
Q
Operant Conditioning
A
Predictable consequences are used to reinforce or weaken a behavior.
14
Q
Procedural Learning
A
- Practice makes perfect!
- A desired action or behavior is practiced over and over again until it becomes second nature.
15
Q
Declarative learning
A
Describing or visualizing all the components of a task before actually doing it.
