{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Psych_115_-_Schizophrenia

Psych_115_-_Schizophrenia - PRINCIPLES OF BEHAVIORAL...

Info icon This preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Schizophrenia PRINCIPLES OF BEHAVIORAL NEUROSCIENCE
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
What is Schizophrenia? “Schizm” or splintering of the “phren” or mind Not into different personalities as in Dissociative Identity Disorder Splintering of various mental faculties (thought, affect, social functioning, etc.) so that they are no longer coordinated Result is loss of touch with reality (psychosis)
Image of page 2
Components Thought Form (loosening of associations, incoherence, neologisms) Thought Content (delusions of persecution, grandeur, thought control) Attention and Perception (“over-attention”, hallucinations, voices) Affect, Motivation, Social Functioning (blunted or silly affect; anhedonia; social withdrawal)
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
DSM-IV Criteria Either hears voices or has bizarre delusions, or has two or more of following, for 1-month or more c Delusions c Hallucinations c Formal thought disorder c Grossly disorganized behavior or catatonia c Flat or inappropriate affect Deterioration from a previous level of functioning in work, social relations, and/or self-care Continuous signs of the disturbance for at least 6 months, including prodromal/residual symptoms
Image of page 4
Differential Diagnosis Psychotic symptoms may also be present in mania and depression, but in those conditions, they never occur outside of a mood episode, and they are usually mood-congruent Psychotic symptoms may also occur in cases of drug abuse (amphetamines, PCP) and organic brain syndromes (dementia)
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Heterogeneity of Schizophrenia Symptoms - not all symptoms are present in every case & symptoms can differ across time within an individual Age at onset - differs markedly between males (late teens) and females (mid twenties) Premorbid functioning - for some, illness comes from ‘out of blue’, for others, insidious Course of illness - episodic versus chronic Long-term outcome - ‘rule of thirds’
Image of page 6
Genetic Epidemiology Sample Morbid Risk General population 1% First-degree relatives 10% Second-degree relatives 2-3% MZ co-twins ( r MZ = .82) 50% DZ co-twins ( r DZ = .40) 10% Offspring of 2 affected parents 36% Adopted away biological offspring 10%
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Schizotypal Personality Disorder Subthreshold symptoms (e.g., suspiciousness, odd
Image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern