Psychology of Aging
Compare and contrast current research on alternative stage theories of adulthood and personality development.
Child developmentalists traditionally categorized adult personality development into stage theories (Kagan, 2001). Sigmund Freud advocated the psychosexual stage, which held that personality is shaped early in life and generally resists change. Carl Jung proposed the opposite, in that personality develops in adulthood. Other theories surfaced in the 30s an the 40s in Europe and the U.S., such as Charlotte Buhler's, which called for empirical evaluations of theoretical predictions and Erik Erikson's similarly psychoanalytic stage theory, which asserts that a person develops through stages of human needs. Eventually, these early stage theories failed empirical tests. Critics of stage theories argued that personality does not evolve systematically in adulthood. Then came the Trait Theory in the 80s, which suggested that personality only changes slightly when a person reaches age 30 (Kagan, 2001).
The Trait Theory proposes that there is only a little change in personality from adulthood till old age (Kagan, 2001). Its critics hold that it is unable to predict behavior and adjust focus on particular strategies. Then the life-span theories developed from the social cognitive theory. They suggest that persons form their own environments and that the process of personality development moves towards adaptation. Their two stays. The first states that time and space influence adaptation. It occurs more in infancy and early childhood than in later years. The second stay involves specialized adaptation within a given environment, which sustains its self-views. Thus, as a person ages, he reduces his circles and forms social structures with which he lives throughout life. And it also maintains that adaptation is never complete in that flexibility to certain circumstances may not be as strong as flexibility to other circumstances (Kagan, 2001).
Life span development is motivational in that an individual is driven by the basic human need for competence, relatedness and autonomy in his entire lifetime (Kagan, 2001). A second view of personality relates to emotions at challenging times and how these emotions are regulated. And the third perspective states that, as a person ages and encounters more challenges, his views change (Kagan, 2001).
In merging and comparing these alternative theories, approaches and findings on adult personality development, it can be gleaned that continuity or personality change best characterizes adulthood. People have been observed to remain consistent in adulthood. Goals tend to change as a person ages, emotions become better controlled, and different qualities form as he grows old (Kagan 2001).
2. Distinguish the factors what contribute to accelerated sensory decline as individuals age.
These are tactile, vibration at 40 and 250 Hz, increase and decrease in temperature, and noxious heat (Wickremaratch & Llewelyn, 2006). Tactile thresholds in older people are substantially greater than in younger people. This may be attributed to reduced density and distribution of Pacinian and Messner corpuscles and Merkel's discs on the skin. The result is reduced spatial sharpness. Thermal and transcutaneous electrical nerve stimulation pain thresholds are also greater in older people than younger people. It appears that age change only in function as the perception of pain and temperature in older people is largely due to slower conducting C fibers. The sense of vibration is also sharper and higher in them than younger persons, as shown by the results of 12 performance-based tests on muscle strength, balance, gait, somatosensory discrimination, and reaction time. These last five factors declined with age. The sense of vibration reaches its peak at age 65. Tests o the acuity of touch showed that it diminishes as one ages. This acuity is lost at an average of 80% in the foot and finger in older persons or those aged 65 or older. Another study, on the other hand, suggested that skin change contributes to the change in touch sensation in older persons ( Other studies revealed that the threshold for the perception of electrical stimuli is higher in elder persons who volunteered for the experiment (Wickremaratch & Llewelyn, 2006).
3. Speculate changes in cognitive functioning and creative performance associated with aging.
These are attention and working memory (Gilsky, 2007). Deterioration of attention in ageing people imposes wide stratum and long-term impact on their effective daily functioning. The types of attention that have been investigated are selective attention, divided attention and attention switching, and sustained attention. Findings of studies are not unanimous but older people generally seem to be slower in managing targets than younger people. But distractions affect both groups similarly. The differences may be due to reduced information processing in older people more than to selective attention deficits themselves. Results of studies...
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