Negativism: Definition in Psychiatry and Psychology  Opposition to suggestions or advice and attempts to move the subject results in the subject doing the exact opposite of what people ask of them. Behaviour that is contrary to what is appropriate in a situation or against the wishes of others, including direct opposition to attempts to move. Negativism is often a symptom of catatonia, leading to rigidity (catatonic). It differs slightly from gegenhalten, in which the person resists movement but does not make the opposite movement. 

The Doppelgänger is a phenomenon in which individuals believe that their exact "double" is always with them and follows them around.

Agnosia: Definition Loss of ability to recognize objects, persons, sounds, shapes, or smells that occur in the absence of either impairment of the specific sense or significant memory loss. 

Achromatopsia Achromatopsia refers to agnosia for colour. This term includes colour blindness. A partial or total absence of colour vision is the hallmark of achromatopsia. People with complete achromatopsia cannot perceive any colours; they see only black, white, and shades of grey. Incomplete achromatopsia is milder; it allows some colour discrimination. Other vision difficulties associated with achromatopsia include increased sensitivity to light and glare (photophobia), involuntary back-and-forth eye movements (nystagmus), and severely decreased visual acuity.  Farsightedness (hyperopia) or, less typically, nearsightedness (myopia) might affect those who are affected (myopia). During the first several months of life, these eyesight issues first appear. Achromatopsia differs from the more common forms of colour vision deficiency (also called colour blindness). People can perceive colour but have difficulty distinguishing between certain colours, such as red and green. 

Childhood Disintegrative Disorder: Clinical Features and Diagnostic Criteria Waleed Ahmad Published online by MRCPsych UK: Tuesday, 03 May 2022 Introduction There is a loss of skills in several areas of development and deficits in social, communicative, and behavioural functioning that follow normal development in this condition. Often the condition follows a prodromic period during which children develop obscure symptoms; they become restive, irritable, anxious, and overactive. Impoverishment follows this and then loss of speech and language, accompanied by behavioural disintegration. Sometimes the loss of skills is persistently progressive (especially if there is an underlying progressive neurological condition), but more often, the decline over some months and then a slight improvement. The prognosis is usually abysmal, and it leaves most individuals with severe intellectual disability. There is uncertainty about the extent to which this condition differs from autism. Sometimes, th

Symptoms and Functioning Severity Scale (SFSS) The key measure of therapy success is the Symptoms and Functioning Severity Scale (SFSS).1  This scale examines the intensity of general symptoms and symptoms related to children and adolescents' most prevalent mental health problems (ADHD, CD, ODD, depression, and anxiety).  It comprises a 5-point Likert scale for each item ("never," "rarely," "occasionally," "frequently," and "very often"). A total score, an externalising score, and an internalising score are all provided by the SFSS. Youngster, caregiver, and clinician versions are available.  A 26-item version (SFSS-Full) and 2 other variations (SFSS Short Form A and Short Form B) are the different versions. Therapists apply these later 2 versions during alternate therapy sessions to assess change over a short period (i.e., weekly or biweekly sessions). Bibliography Bickman L, Athay M, Riemer M, et al. Manual of the Peabody treatmen

Drugs and Conditions which Affect Serum Lithium Levels Question Which one of the following may affect blood levels of lithium? A. NSAIDS B. ACE inhibitors C. Thiazide diuretics D. Dehydration