3019PSY Delusion

As per a Cognitive Neuropsychological approach, all Delusions have what in common? (multiple answers)

• The delusional belief is present in isolation (monothematic)

• The delusional belief is encapsulated from the rest of the belief system

• The delusion is rare

• The individual can change there delusion voluntarily

Consistent features of Capgras Delusion include:

(multiple answers)

• The delusional belief is resistant to criticism but are aware the idea is absurd

• The delusion tends to occur in unfamiliar contexts

• The patient cannot explicitly identify the differences between the current and true person

• Patients adapt well to the imposter

Fregoli Delusion is hypothesized to be caused by:

• Low autonomic response to faces

• People being in disguise

• Strong autonomic response to all faces

• No particular person looking familiar

Patient FE exhibited these symptoms:
1. right hemisphere functions impaired (e.g. copying, drawing, visual memory)

2. 2. FE could not recognize his reflection in the mirror

3. 3. FE thought that his reflection was someone else following him around

4. 4. FE tried to talk to the person and was confused why they didnt talk back
   
   What delusion is FE experiencing?

• Delusion of Alien Control

• Reverse Intermetamorphosis

• Fregoli Delusion

• Mirrored-Self Misidentification Delusion

Patient RZ experienced the following symptoms:

1. 1. unexplained hirsutism

2. 2. would describe herself as her father

3. 3. flattened affect, monotonic speech

4. 4. cognitive function was unimpaired

5. What delusion is patient RZ exhibiting?

• Mirrored Self- Misidentification

• Reverse Intermetamorphosis

• Capgras Delusion

• Somatoparaphrenia

Which delusion most commonly occurs with unilateral neglect due to contralateral brain damage, and anosognosia for hemiplegia?

• Somatoparaphrenia

• Fregoli Delusion

• Reverse Intermetamorphosis

• Intermetamorphosis

What type of impaired self-monitoring may be present within the Delusion of Alien Control? (multiple answers)

• An individual can sensory feedback from a movement but are unable to understand its meaning

• Individual can do a movement but don't obtain any sensory feedback

• Individual can do both the movement and gain sensory feedback- but are unable to test there congruence/comparison

• An individual cannot monitor their action execution

Which of the following delusions can be explained by Colthearts (2007, 2010, 2011) Two Factor Theory? (multiple answers)

• Delusion of Alien Control

• Somatoparaphrenia

• Reverse Intermetamorphosis

• Mirror Self Misidentification

• All of the Above

Chimeric Assimilation refers to a variation of Place Reduplication, and is defined as:

• where a place is duplicated and exists simultaneously in two or more locations

• where two places become combined (e.g. hospital becomes your home)

• Patient believes that their current location is somewhere else that is familiar to them

• where a place is transformed to another with the same meaning

Answer explanation

there are 3 variations of place reduplication:
Place Reduplication: where a place id duplicated and exists SIMULTANEOUSLY (and is identical) in two or more locations that are geographically seperated

1. Chimeric Assimilation: where two places become combined (e.g. the hospital becoming your home)

2. Extravagant Spatial Localisation: Patient believes that the current location they are in is actually somewhere else (this place is usually familiar to the patient)

A patient suffered head trauma (organic cause), and reports the hospital she is staying in is actually her home. After recovery from the head trauma, the patient no longer reports having this delusion. Does this patient suffer from Place Reduplication Delusion?

• Yes, because she held a false belief that she was at home instead of the hospital

• No, because the delusion did NOT persist after recovery from head trauma

• Yes, because she suffered from an organic cause of a delusion

• No, because the patient suffered from Extravagant Spatial Localization which is only a variant of Place Reduplication

• Both B and D

Answer explanation

• - Place reduplication is usually the result of an ORGANIC CAUSE, not psychiatric.

• - The delusion must persist after injury to be place reduplication

• - three variants of place reduplication: Place Reduplication: where a place id duplicated and exists SIMULTANEOUSLY (and is identical) in two or more locations that are geographically seperated

• Chimeric Assimilation: where two places become combined (e.g. the hospital becoming your home). *ASSIMILATION = COMBINATION

• Extravagant Spatial Localisation: Patient believes that the current location they are in is actually somewhere else (this place is usually familiar to the patient)