Facts: The process via which a body`s sensory organs detect stimuli is formally known as sensation. Information from these organs is then brought together and interpreted in order to bring about meaning by way of perception. This further transforms into other processes such as the: Bottom-up processing, top-down processing and transduction all of which are elements that have the ability to interpret the message depicted by the sensory organs. Conversely, the existence of difference thresholds explains why people initially perceive something but later become aware of its presence. It is also apparent that light moves from an object entering the eye via the cornea then moving towards the pupil and finally to the lens.
Analysis: It is apparent that sensations are easily perceived by the human body. Conversely, information is relayed from the external environment to a specific organ. Psychologically, perception assists physically impaired individuals to detect stimuli from the environment. The three triplets described in the course of the case study are in a position to communicate with one another owing to perception. Through the bottom-up approach, information regarding a particular stimulus is taken up and processed for interpretation. The top-down processing on the other hand, enables one to interpret information based upon past happenings. Besides, stimulus obtained via the bottom-up approach is then transformed into signals that later move to the brain where the information is interpreted.
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Impacts: The critical essence of sensation is such that it becomes possible for individuals to perceive things around them. This means that people who are visually impaired are able to know what is happening around them without necessarily having to see it. For instance, children such as Zoe are in a position to detect people by smell. Once the brain has detected a particular perception from nature such as smell, it is registered in the long-term memory enabling the impaired individuals to know who is approaching them.
Restatement: As stated in the aforementioned examples, it is evident that sensations play a critical role in the lives of individuals. The sensory system is interconnected in a manner such that the physically impaired can still be able to perceive information in a manner similar to individuals living ordinary lives. It, therefore, forms a critical part in the lives of individuals and is hence undoubtedly one of the most essential aspects in the lives of individuals.
