:: Medical Discovery News :: Radio Shows | The Ciradian Rhythm of Teenagers | mp3 … wma … wav If you have teenagers at home, you probably nag at them to get to bed and scream at them to get up. But would you believe maybe they can't help it? In a recent study, some 10,000 students were surveyed after their schools changed the start time from 7:30 to 8:30. Not only did attendance improve, teenage car accidents dropped 16.5% while schools without the change saw accidents increase by 7.8%. Strangely enough sending your teenager to bed earlier won't help. Circadian rhythm is the internal body clock that regulates biological processes in a 24 hour cycle. The SCN ensures certain body functions work in harmony with our sleep wake cycle including body temperature, urine production, and hormone secretion like melatonin which is key to helping us sleep. So you know how you feel when you get jet lagged - when your cirdadian rhythm is disrupted?
Theories of Dreams Physiological theories are based on the idea that we dream in order to exercise various neural connections that some researchers believe affect certain types of learning. Psychological theories are based on the idea that dreaming allows us to sort through problems, events of the day or things that are requiring a lot of our attention. Some of these theorists think dreams might be prophetic. Dream Theories First and foremost in dream theory is Sigmund Freud. Carl Jung studied under Freud but soon decided his own ideas differed from Freud's to the extent that he needed to go in his own direction. More recently, around 1973, researchers Allan Hobson and Robert McCarley set forth another theory that threw out the old psychoanalytical ideas. Let's look a little deeper into what actually happens in the brain when we dream.
The Quantitative Study of Dreams This Web site contains everything needed to conduct scientific studies of dreams using a system of content analysis. Researchers or college/graduate students interested in doing quantitative research should check out the Resources for Scientists page. If you'd like a multimedia overview of some of our methods and findings, you can watch Bill Domhoff's lecture entitled "The Awesome Lawfulness of Your Nightly Dreams" on YouTube. Also of note is our companion site, DreamBank.net, where you can do keyword searches on thousands of . DreamBank Theories of Hypnosis | Hypnosis.Tools "any satisfactory theory of hypnosis should also be a theory bearing on psychology at large" (Hilgard, 1991) For over a century scientists and clinicians have proposed mechanisms to explain the phenomenon associated with hypnosis. The key theories of hypnosis, historical and current, are presented here. A key debate in hypnosis throughout the twentieth century has been between 'state' vs. Figure: Description of some properties of state and non-state theories of hypnosis State theories Hilgard's Neodissociation Theory (Hilgard, 1979, 1986) Hilgard's Neodissociation theory of hypnosis is a classic 'state' theory. "Effective suggestions from the hypnotist take much of the normal control away from the subject. Hilgard's theory was inspired by his experiments with the 'hidden observer' phenomenon whereby a 'hidden part' of the mind of a subject experiencing hypnotic pain relief could be encouraged to elicit reports of the 'true' pain experience. Dissociated-Experience Theory Non-state theories
Piaget & Vygotsky: A Comparison! Child Psychology Once upon a time, although it seems barely credible to us now, we were all children. We gurgled, we cried, we laughed, we explored, we fell down, and we had very little idea about the journey on which we had just embarked. Barring mishap, over the first few years of our lives we developed memory, language, self-concept, cognitive, social and emotional abilities. We took our first steps towards our future selves. Child psychology – or, more broadly, developmental psychology – is not just the study of children, it is the study of you and me and how we came to be this way. Just as discovering your history can teach you about the future, so child psychology shows us what we once were and even what we will become. Here are 10 classic studies that have illuminated crucial areas of childhood development. [Image credit: Patrick Q]
IQ testing, race and controversy: put your intelligence to the test This is, unsurprisingly, absolute poppycock. From a scientific point of view, the notion of race is meaningless. Genetic differences do not map neatly on to traditional measurements of skin colour, hair type, body proportions and skull measurements. In fact, a person who is considered black in one society may be non-black in another. However, just as it is apparent that some people look darker than others, it is equally apparent that some people are indeed smarter than others. And just as there are tests that capture our differences in physical fitness, we are able to devise those that capture differences between our cognitive abilities, most of which demand the performing of various mental tasks. The best-known of the bunch is for intelligence quotient, now most commonly measured using the Wechsler Adult Intelligence Scale. The results seem to correlate with performance at school and work, so to that extent at least, our IQ scores can be said to reflect how smart we are.
Theories of Intelligence - About Psychology What exactly is intelligence? How do researchers define and measure this mental quality? While intelligence is one of the most talked about subjects in psychology, there is no standard definition of what exactly constitutes 'intelligence.' Some researchers have suggested that intelligence is a single, general ability while other believe that intelligence encompasses a range of aptitudes, skills, and talents. How Do Psychologists Define Intelligence? Intelligence has been an important and controversial topic throughout psychology's history. continue reading below our video Loaded: 0% Progress: 0% At various points throughout recent history, researchers have proposed some different definitions of intelligence. Learn. Intelligence involves some different mental abilities including logic, reasoning, problem-solving and planning. While the subject of intelligence is one of the largest and most heavily researched, it is also one of the topics that generates the greatest controversy. Louis L.
Health | Beta-blockers 'blot out memories' A common blood pressure drug could help people who have witnessed traumatic events, such as the London bombings, to block out their distressing memories. Cornell University psychiatrists are carrying out tests using beta-blockers, the journal Nature reports. The drug has been shown to interfere with the way the brain stores memories. Post-traumatic stress disorder affects around one in three of people caught up in such events, and memories can be triggered just by a sound or smell. People with PTSD are given counselling, but because it is not always effective, researchers have been looking for alternative therapies. However there are concerns that a drug which can alter memories could be misused, perhaps by the military who may want soldiers to become desensitised to violence. Fear and memory linked The beta-blocker propranolol has been found to block the neurotransmitters involved in laying down memories. But so far only one person has volunteered to take part. "It's a serious illness."
Theories of Love Psychologists and researchers have proposed a number of different theories of love. Love is a basic human emotion, but understanding how and why it happens is not necessarily easy. In fact, for a long time, many people suggested that love was simply something to primal, mysterious, and spiritual for science to ever fully understand. The following are four of the major theories proposed to explain love and other emotional attachments. Liking vs. Psychologist Zick Rubin proposed that romantic love is made up of three elements: attachment, caring and intimacy. continue reading below our video Loaded: 0% Progress: 0% Intimacy refers to the sharing of thoughts, desires, and feelings with the other person. Based upon this definition, Rubin devised a questionnaire to assess attitudes about others and found that these scales of liking and loving provided support for his conception of love. Compassionate vs. When these intense emotions are reciprocated, people feel elated and fulfilled.