Behavior.Bad read Scientists identified the first gene that appears to foster the development of dyslexia dyslexia (dĭslĕk`sēə), in psychology, a developmental disability in reading or spelling, generally becoming evident in early schooling. To a dyslexic, letters and words may appear reversed, e.g. (164: 131 *). Memory clues Experiments suggested that a common biological mechanism boosts memories of emotional events and blocks recall of what happened just before those events (164: 293 *). Other trials showed that memories of learned skills must be stored and then restored, with the aid of a night's sleep (164: 228 *). Psychotic ties Alterations of genes implicated im·pli·cate tr.v. im·pli·cat·ed, im·pli·cat·ing, im·pli·cates 1. To involve or connect intimately or incriminatingly: evidence that implicates others in the plot. 2. in producing a protective covering for brain cells were linked to psychotic symptoms in both schizophrenia and bipolar disorder bipolar disorder, formerly manic-depressive disorder or manic-depression, severe mental disorder involving manic episodes that are usually accompanied by episodes of depression. (164: 164). IQ shifts A new analysis found that periodic revisions of IQ tests dramatically alter the number of students classified in U.S. schools as being mentally retarded (164: 259 *). Other researchers probed the biology of intelligence (163: 92) and the environment's effect on IQ scores (163: 293). Fatal slumber Sleep difficulties were linked to higher-than-normal death rates from natural causes among healthy elderly people (163: 85 *). Child welfare A three-state study indicated that welfare-to-work programs for poor mothers don't harm the emotional health and academic skills of their children (163: 149). Money matters A financial windfall for Native American families provided evidence that poverty undermines psychological health (164: 244 *). Other studies suggested that strongly materialistic values lessen people's sense of happiness and well-being (164: 152). Social survival Older people who frequently help their spouses, friends, and others showed a survival advantage over seniors who don't (164: 51 *). Scientists also reported that a potentially dangerous change in the immune system immune system Cells, cell products, organs, and structures of the body involved in the detection and destruction of foreign invaders, such as bacteria, viruses, and cancer cells. Immunity is based on the system's ability to launch a defense against such invaders. occurs in many elderly people who care for their incapacitated in·ca·pac·i·tate tr.v. in·ca·pac·i·tat·ed, in·ca·pac·i·tat·ing, in·ca·pac·i·tates 1. To deprive of strength or ability; disable. 2. To make legally ineligible; disqualify. spouses (164: 5 *). ADHD Attention-Deficit/Hyperactivity Disorder (ADHD) Definition Attention-deficit/hyperactivity disorder (ADHD) is a developmental disorder characterized by distractibility, hyperactivity, impulsive behaviors, and the inability to remain focused on tasks or BRAINS An imaging study indicated that disturbances in a network of brain regions that participate in control of attention and behavior underlie attention-deficit hyperactivity disorder Attention-deficit hyperactivity disorder (ADHD) A condition in which a person (usually a child) has an unusually high activity level and a short attention span. People with the disorder may act impulsively and may have learning and behavioral problems. in kids and teens (164: 339 *). [ILLUSTRATION OMITTED] Monkeys demonstrated to scientist for the first time that a nonhuman species harbors a sense of fairness (164: 181 *). [ILLUSTRATION OMITTED] * An asterisk indicates that the text of the item is available free on SCIENCE NEWS ONLINE (http://sciencenews.org). |
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