Research Evaluation

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1. Briefly describe the aim(s) of the study. The aim of the systematic study conducted by McGill University psychologist D. O. Hebb tested the effects of exposure of prolonged periods to a rigidly monotonous environment. The aim of this experiment was to obtain basic information on sensory deprivation and isolation in relation to humanistic behaviour patterns. Simply, how human beings would react in situations where they are without pattern or perceptual stimulation for a prolonged period of time. 2. Indicated whether or not the study was theoretically motivated. Within the article titled ‘The Study of Boredom’ the author Woodburn Heron explains briefly the some basic theories that motivated D. O. Hebb’s study. It is explained that most organisms, examples of snails, birds and sea anemones are used, stop responding to a stimulus if it is steadily repeated over time. Heron explains that this response is also evident in humans. Those who work in repetitive jobs tend to express dissatisfaction about the tasks that are asked to do for a long period of time and their overall performance on these tasks tends to decline. Previous research with similar concepts also helps construct this experiment. A study by N.H. Mackworth during World War II was conducted to determine why antisubmarine radar operators for the Royal Air Force sometimes failed to detect U-Boats while in isolation. This study determined that after a mere thirty minutes the operators’ efficiency decreased by 10 to 15 percent. The decrease in attention span and performance help indicate that a human’s mind, without proper stimulation, can reduce the overall functions of the brain. This previous research indicates the basic question behind D. O. Hebb’s 1951 systematic s... ... middle of paper ... ...unctions require constant stimulus generated in a consecutive, which is dependent on constant sensory input. Placed under isolation and sensory deprivation, brain activity and functions may be impaired so that the brain behaves abnormally. In summary, an ever-changing environment is fundamentally important for all human beings and D. O. Hebb’s study just concludes this further. 5. Indicate whether the study was ethical. There are no obvious violations of ethics within Hebb’s study of sensory deprivation. Participants were respected, and were able to leave the study without any implications. However, the controversial results of this study have indicated that this may cause negative effects on a subject’s psychological health. Hallucinations are detrimental as it causes abnormalities in a participant’s brain, it can further damage to their overall mental condition.

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