Psychology

  Insomnia is a common sleep disorder that can make it hard to fall asleep, hard to stay asleep, or cause you to wake up too early and not be able to get back to sleep. You may still feel tired when you wake up. Insomnia can sap not only your energy level and mood but also your health, work performance and quality of life. How much sleep is enough varies from person to person, but most adults need seven to eight hours a night. At some point, many adults experience short-term (acute) insomnia, which lasts for days or weeks. It's usually the result of stress or a traumatic event. But some people have long-term (chronic) insomnia that lasts for a month or more. Insomnia may be the primary problem, or it may be associated with other medical conditions or medications. You don't have to put up with sleepless nights. Simple changes in your daily habits can often help. Products & Services Book: Mayo Clinic Book of Home Remedies Show more products from Mayo Clinic Symptoms Insomnia ...

  Schizotypal personality disorder  is one of a group of conditions informally called "eccentric" personality disorders. People who have these disorders often seem odd or peculiar to others. They also may show unusual thinking patterns and behaviors. What are personality disorders? People with personality disorders have long-standing patterns of thinking and acting that differ from what society considers usual or normal. Their rigid personality traits can cause problems and interfere with many areas of life, including social and work. People with significant personality disorders generally also have poor coping skills and trouble forming healthy  relationships . Unlike people with  anxiety disorders , who know that they have a problem but can’t control it, people with personality disorders generally are not aware that they have a problem and do not believe that they have anything to control.   Schizotypal Personality Disorder Symptoms People with schizotypal per...

  Sensation is the process by which we receive, transform, and process stimuli that impinge on our sensory organs into neural impulses, or signals, that the brain uses to create experiences of vision, hearing, taste, smell, touch, and so on. Sensory receptors: Specialized cells that detect sensory stimuli and convert them into neural impulses. Psychophysics is the study of the relationship between features of physical stimuli, such as the intensity of light and sound, and the sensations we experience in response to these stimuli. The absolute threshold is the smallest amount of a stimulus that a person can reliably detect. The nineteenth-century German scientist Ernst Weber studied the smallest differences between stimuli that people were able to perceive. The minimal difference between two stimuli that people can reliably detect is the difference threshold, or just-noticeable difference Signal-detection theory: The belief that the ability to detect a signal varies with the charact...

  This type of personality concerns how people respond to stress. However, although its name implies a personality typology, it is more appropriately conceptualized as a trait continuum, with extremes Type-A and Type-B individuals on each end. Type A personality is characterized by a constant feeling of working against the clock and a strong sense of competitiveness. Individuals with a Type A personality generally experience a higher stress level, hate failure and find it difficult to stop working, even when they have achieved their goals. type a personality Research Background Friedman and Rosenman (both cardiologists) actually discovered the Type A behavior by accident after they realized that their waiting-room chairs needed to be reupholstered much sooner than anticipated. x Pause Unmute Remaining Time -8:00 Share Fullscreen Type A and B Personality video When the upholsterer arrived to do the work, he carefully inspected the chairs and noted that the upholstery had worn in an ...

 In general, a fixation is an obsessive drive that may or may not be acted on involving an object, concept, or person. Initially introduced by Sigmund Freud, a fixation is a persistent focus of the id’s pleasure-seeking energies at an early stage of psychosexual development. Oral, anal, and phallic fixations occur when an issue or conflict in a psychosexual stage remains unresolved, leaving the individual focused on this stage and unable to move onto the next. For example, individuals with oral fixations may have problems with drinking, smoking, eating, or nail-biting. How Fixations Develop According to psychoanalyst Sigmund Freud, children develop through a series of psychosexual stages during which the id’s libidinal energies become focused on different areas of the body. The Id and Libidinal Energies The id, the only aspect of the mind thought to be present at birth, operates on the pleasure principle on an unconscious level. Libidinal energies, otherwise known as the libido, ar...

  Borderline personality disorder is a mental health disorder that impacts the way you think and feel about yourself and others, causing problems functioning in everyday life. It includes self-image issues, difficulty managing emotions and behavior, and a pattern of unstable relationships. With borderline personality disorder, you have an intense fear of abandonment or instability, and you may have difficulty tolerating being alone. Yet inappropriate anger, impulsiveness and frequent mood swings may push others away, even though you want to have loving and lasting relationships. Borderline personality disorder usually begins by early adulthood. The condition seems to be worse in young adulthood and may gradually get better with age. If you have borderline personality disorder, don't get discouraged. Many people with this disorder get better over time with treatment and can learn to live satisfying lives. Symptoms Borderline personality disorder affects how you feel about yourself, ...

  Paranoid personality disorder (PPD) is classified as a type of eccentric personality disorder. People with eccentric personality disorders display behaviors that may seem odd or unusual to others. The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) also uses the term cluster A personality disorders to describe eccentric personality disorders like PPD. An individual with PPD is very suspicious of other people, which may interfere with their daily life and activities. They mistrust the motives of others and believe that others want to harm them. Additional hallmarks of this condition include: being reluctant to confide in others bearing grudges finding demeaning or threatening subtext in even the most innocent of comments or events quickly feeling anger and hostility toward others According to a 2017 literature reviewTrusted Source, PPD affects between 1.21 and 4.4 percent of people worldwide. Treatment can be a challenge because people with PPD have in...