Right Hemisphere Overview

Question 1

What are the right hemisphere functions?

Answer 1

-Arousal, orientation, vigilance and selective attention
-Visual perception: holistic gestault-like stimuli, geometric and spatial information,
facial recognition, body image
-Emotional experience and expressions:angry and happy emotions
-Perception of temporal order
-Perception of musical harmony
Other aspects of communication

Question 2

Aspects of communication

Answer 2

Discourse comprehension and production
Complex inferences implied in verbal
Communicative efficiency and specificity
Understanding alternative/ambiguous meanings
Understanding and expressing emotional tone
Understanding and expressing prosodic aspects

Question 3

R Hemi may be less efficient at understanding __ than___

Answer 3

verbs than nouns

Question 4

Brain location for understanding and expressing prosodic aspects

Answer 4

R inferior frontal gyrus
R posterior temporo-parietal
region for understanding
prosody

Question 5

Pragmatic communication skills:

Answer 5

turn-taking,
topic maintenance,
social appropriateness,
eye contact

Question 6

Neuropathology: Etiologies

Answer 6

CVA
Tumors
Head Trauma
Alzheimer’s, Parkinson’s, other neurological diseases

Question 7

Sites of lesions

Answer 7

basal ganglia-13.8% (highest)
frontal - 10.8%
parietal - 10.8%

Question 8

Damage to any lobe in either hemisphere can lead to

Answer 8

neglect

Question 9

Left brain damage: right-neglect =

Answer 9

2-15%

Question 10

Right brain damage: left-neglect =

Answer 10

31-90%

Question 11

right brain damage with left neglect is..

Answer 11

More severe and consistent, resistant to therapy

Question 12

Characteristics of Left-neglect:

Answer 12

Right focus, don’t notice left
Difficulty shifting attention from right to left
Failure to perceive left-sided tactile or perceptual stimuli
Failure to copy the left side of a picture of design
Painting only right half of a face-ignore left
Extreme right-centered attention to an array of stimuli
Paying attention only to the right side of a space described from memory
Bumping into things on the left
Using only right-sided objects
Disownership of the left side of the body
Denying illness (anosagnosia)
Auditory neglect
Motor neglect
Left-neglect in reading
Left neglect in writing

Question 13

Facial Recognition AKA

Answer 13

Prosopagnosia

Question 14

Facial Recognition deficits

Answer 14

Difficulty recognizing familiar faces
Difficulty choosing pictures of faces just shown
Problems naming the pictures of faces of famous persons

Question 15

Capgras syndrome:

Answer 15

delusional belief that their friends and family members are not their real selves but imposters or doubles.

Question 16

Achromatopsia:

Answer 16

loss of color vision

Question 17

Simultanagnosia:

Answer 17

inability to perceive simultaneously the multiple details of a visual display.

Question 18

Pallinopsia:

Answer 18

variant of hallucination, major feature is abnormal persistence or recurrence of visual images after the stimulus has been removed.

Question 19

Attentional Deficits

Answer 19

• Reduced state of arousal
• Difficulty in sustaining attention
• Difficulty in paying selective attention
• Disorientation

Question 20

Disorientation:

3 types?

Answer 20

Topographic disorientation
Geographic disorientation
Reduplicative paramnesia (rare condition)-belief in the existence of multiple and identical persons, places and body parts

Question 21

Affect

Answer 21

Behavioral expressions of emotional states or experiences

Question 22

Affective Deficits

Answer 22

• Difficulty understanding emotions
• Difficulty stating the emotions depicted in pictures stories
• Problems recognizing emotions in sentences
• Problems understanding emotional tone of voice
• Difficulty in emotional expressions

Question 23

Prosody is?

Answer 23

stress patterns, intonation rhythm, and melodious qualities of speech that convey meaning.

Question 24

Prosodic Deficits

Answer 24

• Monotonous
• Impaired stress patterns
• Reduced rate
• Devoid of emotion
• Impaired in prosodic comprehension

Question 25

Discourse means?

Answer 25

social communication skills, involves descriptions of events, objects, and performance, extended talk on a given topic, conversations.

Question 26

Discoure deficits with RHD

Answer 26

• Distinguishing significant from irrelevant info.
• Use tangential, inconsequential aspects of topics
• Conversational speech-irrelevant or tangential
• Understanding implied meanings, abstract words, metaphors, irony, and humor
• Premature incorrect inferences (jumping to conclusions)
• Confabulation and excessive speech
• Unelaborated narratives

Question 27

Semantic Problems

Answer 27

• Difficulty with implied, alternative or abstract meanings
• Failure to grasp overall meaning
• Difficulty with proverbs, idioms, metaphors
• Problems with abstract categories
• Difficulty with irony, humor, sarcasm
• Problems with logical errors in sentences

Question 28

Pragmatic Deficits

Answer 28

• Turn-Taking
• Topic maintenance
• Maintaining eye contact
• Insensitivity to communicative context

Question 29

Prosody includes what aspects?

Answer 29

Stress patterns
Intonation
Rhythm
Melodious qualities that convey meaning

Question 30

Prosodic Deficits (More?)

Answer 30

• Speech sounds monotonous
• Lacks variation
• Missing subtle extralinguistic meanings
• Connotations emotional tone

Question 31

Prosodic deficits AKA

Answer 31

aprosodia, auditory affective agnosia, dysprosodia

Question 32

Perimetry Plots

Answer 32

A. Normal vision in darker areas
Right Hemonimous Hemianopsia blindness in darker areas
Bilateral hemianopsia (tunnel vision)- blindness in darker areas

Question 33

Lesion in:
1 Optic nerve:
2Optic Chiasm:
3 Posterior Optic chiasm:

Answer 33

1. blindness
2. both lateral fields (bilateral hemianopia)
3. 1/2 of each eye (homonymous hemianopia or hemianopsia)