Questions
- In a study done with newborn babies, in equal number of gender, that had a non-nutritive nipple to suck on, and that were exposed to their mothers’ voices in one experiment and then to other voices, these babies have shown to be able to clearly recognize their mothers’ voices by expressing an increase (a burst) on the number of times they sucked the nipple, which did not occur with any of the other voices, except with the mothers’. This implies that, from the very beginning of their existence as a human being with cerebral function, they quickly develop a bond with the mother, by having recorded the frequency, pitch and tone of the mother's voice in their brain, and responding to it as a stimulus that increases sucking. This indicates that, from the very beginning, and possibly while the mother is still pregnant, she should encourage this bond by talking normally to the baby, for an early stimulation of his nervous system, so that it will develop and begin to function, by creating those records of her voice and that recognition ability.
- Pain perception is influenced by many different kinds of cognitive factors. One example is the early or first pain experience memories one has. If someone never cut him/herself, the pain perception associated with this experienced, when such thing happened, would not be perceived as so bad and anxiety triggering as for someone who would have suffered that experience many times in the past. Another example of how pain perception is different is the degree of pain that one person defines as very strong or bearable, depending on the previous experiences of pain (e.g. a person who has broken a leg knows how incredibly painful it is, so that any pain smaller than this will be much bearable). On another hand, the basic cognitive and psychological state that one person finds herself in also influences, such as more pain resistance when in depression, because sensitivity is altered to a hypo general state. Furthermore, a much simpler aspect is the attention itself that one pays to the pain sensation: the more attention one gives, the more alert the system is to the feelings and more the pain is felt as being worse.
- In 3-D movie, with red/blue 3-D glasses, one has the perception of such depth because the film uses the Parallax optical illusion, in which each eye receives an image that is slightly different than the other, but, because we need both eyes to have the depth sensation, they do not see the images separately, but as one. This one image is created in our brain, by seeing the two images at once and perceiving them at the same time, which is then observed as having further depth, like if it had a third dimension. The trick for such thing to happen is on the different color lenses. By having one red and one blue, each eye receives the image in one of the colors, which in the brain is understood as the two slightly different images being one and the same but at different positions. And this is what makes the images be perceived as one, with the 3-D depth.
