Week 5H20,21,22,25 Flashcards
Which disorder, schizophrenia or bipolar disorder, has a stronger negative impact due to cognitive dysfunction?
The negative impact is stronger in people with schizophrenia than bipolar disorder.
True or False: The risk of psychotic disorder is higher in people whose relatives exhibit only physical symptoms.
False. The risk is higher in people whose relatives exhibit psychotic/cognitive symptoms.
True or False: People with schizophrenia and bipolar disorder have thicker cortices in their brain than healthy controls.
False. People with schizophrenia and bipolar disorder have thinner cortices.
How do first generation antipsychotics work and what were their limitations?
First generation antipsychotics work by blocking dopamine receptor D2, but they didn’t improve negative symptoms and cognitive functioning and had serious motor side effects.
What is the advantage of third-generation antipsychotics over the first generation?
Third-generation antipsychotics target more receptors and have the potential to improve negative and cognitive symptoms without causing the severe motor side effects of first-generation drugs.
What is the transdiagnostic domain associated with cognitive impairments in psychotic disorders called?
The transdiagnostic domain associated with cognitive impairments in psychotic disorders is called the ‘C-factor’.
What is the RDOC and what was its purpose?
The Research Domain Criteria (RDOC) is a cross-diagnostic framework established in the past decade for investigating psychiatric disorders.
What does Frontotemporal dementia (FTD) encompass?
Frontotemporal dementia (FTD) encompasses a group of neurodegenerative disorders that primarily affect the frontal and temporal lobes of the brain. These areas of the brain are generally associated with personality, behavior, and language. most prevalent early onset form of dementia.
Which types of dementia are considered part of the spectrum of FTD?
Some examples in the spectrum of FTD are:
- the behavioral variant (bvFTD), language variants (primary progressive aphasia or PPA), myotropic lateral sclerosis (ALS), corticobasal syndrome (CBS), and progressive supranuclear palsy (PSP).
In diagnosing Primary Progressive Aphasia (PPA), what is the most prominent clinical feature?
difficulty with language.
What is the second step in the diagnosis of Primary Progressive Aphasia (PPA)?
The second step is classifying into one of the three subtypes of PPA: Semantic variant (svPPA), Non-fluent variant (nfvPPA), and Logopenic variant (lvPPA).
How is Semantic variant (svPPA) characterized?
svPPA is characterized by difficulty in word understanding and finding, with patients often replacing words with ones that have a similar meaning or are easier to remember.
Describe the Non-fluent variant (nfvPPA) of PPA.
nfvPPA is characterized by speech apraxia (slow, effortful, flat speech), errors in speech sounds, and difficulty forming and understanding complex sentences.
What characterizes the Logopenic variant (lvPPA)?
lvPPA is characterized by non-fluent speech. It is mostly caused by underlying Alzheimer pathology and not FTD. For diagnosis, both core features (impaired single-word retrieval and impaired repetition) and at least three of the supporting features need to be present.
what is the typical neuroradiological characteristic of FTD compared to Alzheimer’s?
FTD often shows an asymmetric pattern of atrophy of the frontal and temporal lobes, whereas Alzheimer’s commonly has symmetrical atrophy.
Match the FTD subtypes with their most common locations of atrophy:
1svPPA
2nfvPPA
3lvPPA
4bvFTD
5PPA
a. Cortex, prefrontal and orbitofrontal cortex
b. Left hemisphere (associated with language functions)
c. Left anterior and inferior temporal lobe
d. Left inferior frontal gyrus, insular cortex, and premotor and supplementary motor areas
e. Posterior temporal and parietal areas
1c 2d 3e 4a 5b
What is the main focus of pharmacological treatments for FTD?
Pharmacological treatments primarily focus on alleviating behavioral and motor problems.
True or False?
In bvFTD, episodic memory is heavily affected and is a primary criterion for diagnosis.
False (Episodic memory is relatively spared in bvFTD, so it should be considered an exclusion criterion.)
True or False?
PPA patients with underlying Alzheimer pathology usually experience impairments in repetition and working memory.
true
1Parkinson’s disease
2MSA (multiple system atrophy)
3PSP (progressive supranuclear palsy)
4CBD (corticobasal degeneration)
a. A form of parkinsonism where disturbances increase in severity and new symptoms may occur. Has chronic progressive nature.
b. Parkinsonism with faster cerebrovascular damage.
c. Characterized by both cerebellar and parkinsonian symptoms.
d. Atypical parkinsonism with slow progression, generally free from tremors.
1-a, 2-c, 3-b, 4-d