Article Talk. Capgras delusion or Capgras syndrome is a psychiatric disorder in which a person holds a delusion that a friend, spouse, parent, another close family member, or pet has been replaced by an identical impostor.
Echopraxia (also known as echokinesis) is the involuntary repetition or imitation of another person's actions.
Factitious disorder - Symptoms and causes - Mayo Clinic.
Anosognosia is a neurological condition in which the patient is unaware of their neurological deficit or psychiatric condition. It is associated with mental illness, dementia, and structural brain lesion, as is seen in right hemisphere stroke patients.
Capgras syndrome (CS), or delusion of doubles, is a delusional misidentification syndrome.[1] It is a syndrome characterized by a false belief that an identical duplicate has replaced someone significant to the patient.
Fregoli syndrome is the delusional belief that one or more familiar persons, usually persecutors following the patient, repeatedly change their appearance.
Nihilistic delusion (ND) is one of an assortment of narrowly defined monothematic delusions characterized by nihilistic beliefs about self's existence or life itself.
Abstract. Somatoparaphrenia is a delusional belief whereby a patient feels that a paralyzed limb does not belong to his body; the symptom is typically associated with unilateral neglect and most frequently with anosognosia for hemiplegia.
Anosognosia was thus defined as a loss of or an abated awareness of symptoms, their roots and implications for life, and anosodiaphoria was defined as a reduction or a lack of botheration for this altered state of mind and situation [28].
mood disorders (such as depression or bipolar disorder) anxiety disorders. personality disorders. psychotic disorders (such as schizophrenia)
Echopraxia is a tic characterized by the involuntary repetition of another person's behavior or movements. It is closely related to echolalia, which is the involuntary repetition of another person's speech. A person with echopraxia might imitate another person's fidgeting, style of walking, or body language.
Fregoli delusion is the mistaken belief that some person currently present in the deluded person's environment (typically a stranger) is a familiar person in disguise.
About Munchausen syndrome
Munchausen syndrome (also known as factitious disorder) is a rare type of mental disorder in which a person fakes illness. The person may lie about symptoms, make themselves appear sick, or make themselves purposely unwell.
"Contagious" might sound alarming, but in this case, it's a good thing. Mimicry seems to work like a social glue, helping pairs to bond and promoting group cohesion. And as the researchers behind this study pointed out, it seems to help us bond even when we're not trying to.
They're either: Lacking a sense of self – They don't know who they are so being you seems awesome. Green with envy – They want what you have, so they copy you to try to get it. Insecure – A lack of self-esteem can cause someone to try and elevate themselves by copying those they admire (you) or…
It is proposed that echopraxia occurs in schizophrenia when the mirror neuron system provides a representation to the inferior frontal gyrus (IFG) and the motor cortex (and via the IFG, to the anterior cingulate cortex) and that this potential becomes executed movement, when the disorder is associated with decreased ...
Lesions that cause anosognosia can happen for any of the following reasons: Aneurysms. Brain tumors (including cancerous and non-cancerous growths). Head injuries such as concussions or traumatic brain injuries (TBIs).
La belle indifférence: a biological perspective
Anosognosia (denial of hemiplegia) and anosodiaphoria (indifference to hemiplegia) are surprisingly common clinical features of hemispheric lesions, particularly right parietal stroke.
Hysterical paralysis is the reverse of anosognosia. in the latter, patients do not feel paralyzed, although they are physically unable to move; in the former, they feel paralyzed although they are physically able to move.
Someone exhibiting a monothematic delusion possesses just a single delusional belief or at most a few such beliefs all related to a single theme. Polythematic delusional systems are often noted in people diagnosed with schizophrenia.
Ennio De Renzi
He explored, on two patients with autotopagnosia in particular, the difficulties of mentally recognizing the physical division of a whole object into sections. For example, he found his patients could not describe the position or parts of a bike, and were unable to focus on a part of the whole.
Several causes have been described to cause akinetopsia. These include infarction, traumatic brain injury, neurodegenerative disease such as Alzheimer's ( visual variant of Alzheimer's disease/ posterior cortical atrophy), epilepsy, hallucinogen persistent perception disorder (HPPD), and medication adverse effect.
Symptoms of walking corpse syndrome (Cotard's syndrome or Cotard's delusion) include: Delusions one is dying, dead, or no longer exists. Severe depression or sadness (melancholia) Insensitivity to pain.
People with Cotard's syndrome (also called walking corpse syndrome or Cotard's delusion) believe that parts of their body are missing, or that they are dying, dead, or don't exist. They may think nothing exists. Cotard's syndrome is rare, with about 200 known cases worldwide.
Cotard's syndrome was originally described in 1880 by the French psychiatrist Jules Cotard, who called it the délire des négations. The characteristic symptom of the syndrome is nihilistic delusion. Typically, patients believe they have lost organs, blood or body parts, or even that they are dead.