It was first named by the Canadian endocrinologist H. Cellier. The harmful factor or stimulus is called a stressor, and the state of tension is called stress. He divided the stress response to a stressor into three stages and called it generalized adaptation syndrome. Stage 1 is the warning response, when the body actively resists […]
How you’re feeling right now. We use the word mood a lot. It’s often paired with adjectives like “good” or “bad” to indicate whether you’re feeling good or bad about yourself. Naturally, it has a significant impact on my thoughts and behaviors. This mood is a slightly different concept from my personality. This mood is
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Definition Dyslexia is a type of learning disability, also known as a reading disability, characterized by an inability to read accurately and fluently and difficulty spelling correctly. Dyslexia can also be diagnosed if a person reads accurately but very slowly. The diagnostic criteria for dyslexia have changed frequently, and there are still dozens of different
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Definition Asperger’s disorder is a pervasive developmental disorder characterised by problems with social interaction, restricted behaviour, interests and activities, and a repetitive pattern of symptoms. These characteristics can lead to social and occupational difficulties, but it is not characterised by a marked language delay. Unlike autism, Asperger’s disorder is characterised by a lack of marked
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What is delusional disorder Delusional disorder is an unusual mental illness, characterised primarily by one or more delusions that significantly affect the patient’s thinking and behaviour. One of the distinguishing features of this disorder is the absence of hallucinations or other significant psychiatric symptoms. This is where it differs most from schizophrenia. In addition to
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Prevalence (epidemiological characteristics) Social phobia is a very common psychological problem. It has been reported that approximately 4 out of 10 college students experience social anxiety or shyness (Pilkonis & Zimbardo, 1979). Lifetime prevalence rates range from 3-13%, depending on the methodology used, but the prevalence is higher than other anxiety disorders. It tends to
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Definition A tic is when a child involuntarily and repeatedly moves a part of their body, such as their face, neck, shoulders, or torso, very quickly and repeatedly, or makes strange sounds, for no particular reason. The former are called motor tics (muscle tics) and the latter are called vocal tics. When both types of
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Definition Sleep can be defined from several perspectives, but it is primarily defined as a reversible, repetitive, and normally stationary state of immobility in which the ability to perceive and respond to the external environment is suspended. Sleep is driven by brain activity, but it is also deeply connected to physiological changes in other parts
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Also known as seasonal affective disorder or SAD. It is a type of depression that follows a seasonal pattern. The most common form is winter depression, which is characterised by a worsening of symptoms, especially depression and lethargy, in autumn and winter, followed by an improvement in spring and summer. There are also spring and
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Definition Schizophrenia is a disorder characterised by delusions, hallucinations, disorganised speech, disorganised behaviour, and emotional bluntness that can lead to impaired social functioning. It has a poor prognosis for some patients and a chronic course that causes considerable distress to patients and their families, but recent advances in treatment, including pharmacological therapies, have made early
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