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Psychology Model Answer: Cognitive Comparison Essay [16 Marks]

Comparison Of Two Psychological Perspectives Cognitive And - are absolutely

Much of the research in abnormal psychology is guided by various underlying theoretical perspectives. A theoretical perspective is a particular orientation or view to understanding causes of abnormal behavior and the associated treatment. Clinicians utilize particular treatment methods based on which theoretical perspective they deem to be the most beneficial for the client. Each theoretical perspective has a unique view on explaining how abnormal behavior develops and what is necessary to minimize or eliminate the unhealthy behavior. Compare and contrast the Psychodynamic perspective to the various perspectives including biological, behavioral, cognitive, humanistic, sociocultural and biopsychosocial in explaining the causes of psychological problems. Comparison Of Two Psychological Perspectives Cognitive And

Although it is Compwrison friendly, blue light can affect your sleep and potentially cause disease. Until the advent of artificial lighting, the sun was the major source of lighting, and people spent their evenings in relative darkness. Now, in much of the world, evenings are illuminated, and we take our easy access to all those lumens pretty much for granted.

But we may be paying a price for basking in all that light. At night, light throws the body's biological clock—the circadian rhythm —out of whack. Sleep suffers. Worse, research shows that it may contribute to the Comparisn of cancer, diabetes, heart Perspectived, and obesity. Not all colors of light have the same effect. Blue wavelengths—which are beneficial during daylight hours because they boost attention, reaction times, and mood—seem to be the most disruptive at night. And the proliferation of electronics with screens, as well as energy-efficient lighting, is increasing our exposure to blue wavelengths, especially after sundown.

Everyone has slightly different circadian rhythms, but the average length is 24 and one-quarter hours. The circadian rhythm of people who stay up late is slightly longer, while the rhythms of earlier birds fall short of 24 hours. Charles Czeisler of Harvard Medical School showed, inthat daylight keeps a person's internal clock aligned with the environment.

Some studies suggest a link between exposure to light at night, such as working the night shift, to diabetes, heart disease, and obesity. That's not proof that nighttime light exposure causes these conditions; nor Comparison Of Two Psychological Perspectives Cognitive And it clear why it could be bad for us. A Harvard study shed a little bit of light on the possible connection to diabetes and possibly obesity. The researchers put 10 people on a schedule that gradually shifted the timing of their circadian rhythms. Their blood sugar levels increased, throwing them into a prediabetic state, and levels of leptin, a hormone that leaves people feeling full after a meal, went down. Cognitiev

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Exposure to light suppresses link secretion of melatonin, a hormone that influences circadian rhythms. Even dim light can interfere with a person's circadian rhythm and melatonin secretion.

A mere eight lux—a level of brightness exceeded by Cogniitive table lamps and about twice that of a night light—has an effect, notes Stephen Lockley, a Harvard sleep researcher.

Light at night is part of the reason so many people don't get enough sleepsays Lockley, and researchers have linked short sleep to increased risk for depression, as well as diabetes and cardiovascular problems. While light of any kind can suppress the secretion of melatonin, PPerspectives light at night does so more powerfully.

Harvard researchers and their colleagues conducted an experiment comparing the effects of 6. The blue light suppressed melatonin for about twice as long as the green light and shifted circadian rhythms by twice as much 3 hours vs.

In another study of blue light, researchers at the University of Toronto compared the melatonin levels of people exposed to bright indoor light who were wearing blue-light—blocking goggles to people exposed to regular dim light without wearing goggles. The fact that the levels of the hormone were about the same in the two groups strengthens the hypothesis that blue light is a potent suppressor of melatonin. It also suggests that shift workers and night owls could perhaps protect themselves if they wore eyewear that blocks blue light. Inexpensive sunglasses with Compatison lenses block blue light, but they also block other colors, so they're not suitable for use indoors at night.

If blue light does have adverse health effects, then environmental concerns, and the quest for energy-efficient lighting, could be at odds with personal health.

Those curlicue compact fluorescent lightbulbs and LED lights are much more energy-efficient than the old-fashioned source lightbulbs we grew up with.

But they also tend to produce more blue light. The physics of fluorescent lights can't be changed, but coatings inside the bulbs can be so they produce a warmer, less blue light. LED lights are more efficient than fluorescent lights, but they also produce a fair amount Cogntive light in the blue spectrum.

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Richard Hansler, a light researcher at John Carroll University in Cleveland, notes Pfrspectives ordinary incandescent lights also produce some blue light, although less than most fluorescent lightbulbs. Disclaimer: As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles. No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician. Harvard Health Letter. What is blue light?]