How the eye is suited for the purpose of converting visible light into Essay - 1

How the eye is suited for the purpose of converting visible light into neural activity and how visual information is then conveyed to the visual cortex - Essay Example The paper will also highlight some of the challenges the eye faces while it performs its functions. The eye’s first adaptation to its interaction with light is referred to as the papillary light reflex. When responding to different levels of light, the rods and cons work independently but back up each other. This modus operandi espouses the eye’s adaptation to dark light.. While the rods are sensitive to light, they have the tendency to take a significant amount of time to adapt to darkness, in this case the rhodopsin, situated in the photoreceptors take full charge through photo bleaching. On the other hand, the regulation of the eye’s sensitivity eye’ s to light is espoused by the changes in the intracellular calcium ions. In order to adapt to light, the eye first adapts to the background so that it is capable of detecting and distinguishing the background objects; the entire process of adaption to light takes a period of approximately five minutes Whenever light is reflected on a surface or remitted from an object, the eye detects the light that first encounters the cornea; from here, it is then focussed to the lens. The lens in turn functions to vary the focus depending on the distance that exists between the eye and the object. The focal adjustment of the light by the lens is called accommodation. The lens alters its shape depending on the distance of the object; for objects that are distant, it elongates, flattens and pulls out whereas for objects that are close by, it only needs to assume its natural round shape for clear vision. The light first passes through the space between the cornea and the lens that is filled with fluid called aqueous humour. It consequently goes through the t pupil ‘s circular aperture that is surrounded by the iris diaphragm muscles prior to going through the lens (Jones, et al 2004). However, the quantity of light that passes through the pupil is determined by the pupil’s diameter a nd still goes ahead to be

Organisation behaviour--business Essay Example | Topics and Well Written Essays - 1750 words

Organisation behaviour--business - Essay Example Emotional intelligence is such factor; emotional intelligence (EI) can be characterized as a quite complex framework, incorporating many different elements, as indicatively presented in Graph 1, Appendix. The relation between the EI and the employee performance is critically discussed in this paper. The theories and the empirical studies that have been developed in the specific field have been used in order to explore whether EI is related and at what level to the employee performance. It is revealed that EI has a key role in the increase of employee performance, but this role is likely to be perceived differently in organizations with different structure and culture. In any case, EI and employee performance are closely related being depended on one another using different paths and methods of interaction, as explained in the studies presented below. 2. Emotional intelligence and employee performance – presentation and analysis of their relation In accordance with Sala, Druska t and Mount (2006) emotional intelligence (EI) can directly affect the employee performance in the following way: employees are expected to interpret differently their leader’s decisions. ... The above problem becomes more critical because of the following fact: employee intelligence of employees cannot be controlled by the leader of the organization; on the contrary, employee intelligence is related to the background, knowledge and personal experiences reflecting the freedom of employees to develop their own views as members of the organization. In other words, the control of employee intelligence within a particular organization would be in opposition to morals and ethics. Moreover, the actual views of employees on one or more organizational issues are quite difficult to be retrieved; from this point of view, employee intelligence in the organization cannot be controlled because of its nature, being involved in personal thoughts, cognitive capabilities and emotions. The above conditions do not affect the importance of EI in the workplace. In fact, EI is closely related to job performance, as noted by many theorists who studied the particular field. At a first level,â₠¬â„¢ a positive relation has been identified between the job performance and the emotion recognition accuracy’ (Elfenbein, Marsh and Ambady 2002, in Sala, Druskat and Mount, 2006, 168). Another aspect of emotional intelligence is presented in the emotional intelligence model of Tao de Haas (2005, see Graph 2, Appendix). In the specific model it is made clear that EI is based on empathy – the ability to identify/understand the feelings of others; it is on this psychological characteristic that the responses of the employee in the workplace are based; in any case, a high level of EI would require an excellent ability to understand and manage the personal