The pavilion and the external auditory canal are parts of the external ear. The eardrum, the ossicles and tympanic fund are parts of the middle ear. The eustachian tube, the cochlea, the organ of Corti, the auditory nerve and the vestibular apparatus are parts of the inner ear. The auditory system and the sensory system are involved in recognizing emotions. The average human ear cannot hear all the sounds coming in; it perceives only the sounds between 20 Hz and 20,000 Hz. The hertz is the unit of frequency of the sound.
[...] of attention: selective and divided. When we perceive a sound, the emotion will not be the same for all those who hear it . We hear the same sound but we do not receive it in the same way. Sound alone does not make sense. It is the ephemeral nature of sound and the emotions attached to it that makes sense. The auditory attention is essential for learning. The joint attention is important in some cases, for example, while traveling by car, we must be attentive to everything around us and not choose certain sounds (selective attention). [...]
[...] Over activation of the amygdala is important for an event, and more information is encoded. The recall of memory will be more stable. When the information is positive, it will remember the context with fewer elements. When negative elements are present, more elements are stored. The frontal lobes help in arriving at a perspective. It is the decision center that inhibits the activity of the amygdala. This decision is based on societal factors and personal choice supports it. If the decision making is impaired, the limbic system becomes much more active. [...]
[...] For neurofibrilaires degeneration, there is an accumulation of protein filaments that are pathological and are due to aggregation of tau protein in their cytoplasm. Tau proteins belong to the family of proteins associated with microtubules, particularly those expressed in the cerebral cortex. Microtubules are filaments that form the skeleton of the neuron. Tau proteins are used to stabilize the microtubules. If the Tau protein is phosphorylated, it can no longer bind to microtubules, and can no longer stabilize. This results in the degeneration neurofibrilaire. [...]
[...] Enlightenment is the first state of attention. It is a state of alert and muscular tension (cortical arousal). Sleep inhibits arousal. From the moment we do not sleep, we are awake but that does not mean we are necessarily focused. Consciousness is a condition that is stronger than enlightenment. The focus is to diminish the background noise to deal with imprecise signals and to enhance the ability to filter information. The concentration is sustained through focused attention. The motivation can make one learn further as there is no learning without motivation. [...]
[...] The states of vigilance The body clock helps regulate the rhythm of time for each function. For example, the cycle clock regulates sleep, food, thirst and temperature. It is a brain structure that measures time and imposes a rhythmic activity to biological functions: the suprachiasmatic nucleus (in the central nervous system). Biorhythms Period Example Circannual Year Migration cycle Infradian Less than one year Menstruation Circadian Day Sleep-wake cycle Ultradian Less than one day Intake The external signals can alter the biological clock. [...]
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