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  2. Paradoxical laughter - Wikipedia

    en.wikipedia.org/wiki/Paradoxical_laughter

    Paradoxical laughter has been consistently identified as a recurring emotional-cognitive symptom in schizophrenia diagnosis. Closely linked to paradoxical laughter is the symptom; inappropriate affect, defined by the APA Dictionary of Psychology as "emotional responses that are not in keeping with the situation or are incompatible with expressed thoughts or wishes". [3]

  3. Pseudobulbar affect - Wikipedia

    en.wikipedia.org/wiki/Pseudobulbar_affect

    Episodes of uncontrollable laughing, crying, or other emotional displays that may not match the patient's mental state: Duration: Few to several minutes: Causes: Traumatic brain injury, ALS, MS, dementia, etc. Risk factors: Traumatic brain injury, ALS, MS, dementia, etc. Diagnostic method: During a neurological evaluation: Differential ...

  4. Inappropriate affect - Wikipedia

    en.wikipedia.org/wiki/Inappropriate_affect

    Inappropriate affect is an emotional expression that does not align with the content of a person's speech or thoughts, or is unsuitable for the situation at hand. [1] This is often observed in individuals with schizophrenia, [2] where emotional responses, such as laughter, may occur in the absence of a relevant stimulus.

  5. A root cause of schizophrenia may have finally been found - AOL

    www.aol.com/news/2016-01-28-a-root-cause-of...

    'This will turn out to be the most important break in the disease,' the Broad Institute's director Eric Lander said.

  6. Causes of schizophrenia - Wikipedia

    en.wikipedia.org/wiki/Causes_of_schizophrenia

    The causes of schizophrenia that underlie the development of schizophrenia, a psychiatric disorder, are complex and not clearly understood.A number of hypotheses including the dopamine hypothesis, and the glutamate hypothesis have been put forward in an attempt to explain the link between altered brain function and the symptoms and development of schizophrenia.

  7. Sad clown paradox - Wikipedia

    en.wikipedia.org/wiki/Sad_clown_paradox

    Laughter can evolve as a medium for self-preservation, detaching the individual from any adversity faced allowing for perceived control over uncomfortable situations. [ 9 ] Sad clown paradox is characterised by a cyclothymic temperament , which encourages the creation of light-hearted humour in a professional setting, despite inner turmoil. [ 10 ]