Biology Experiment

The emotion known as fear, evolutionary biology claims, is an integral component of a person’s survival instinct. Observing animals can effortlessly confirm this statement. Terror at the prospect of being killed and eaten is the driving force behind the gazelle’s rapid dash across the African savanna. Terror of being pushed out of her fertile hunting grounds pushes the lioness to bite and tear into the flesh of the aforementioned gazelle. Fear is just as omnipresent among humans as it is among animals, and in the past, it was just as crucial to survival. Interestingly enough, recent analysis is beginning to show that there is a lot much more science to the sensation of fear than most men and women would believe.

Science has shown that being afraid triggers the “fight or flight” response in people, but analysis conducted by the neuroscience department of New York University claim that it does not end there. The body obviously feels the most drastic effects of being terrified or afraid. A host of hormones and biochemicals, like adrenaline, are pumped into every area of the body. These prepare a individual, in case the want to physically perform beyond their standard levels are needed. The amygdala, a small section of the brain, is known to be the area that initiates this first response. Nevertheless, this component of the brain has been shown to react only if the trigger has previously been recognized as a prospective threat to status or survival. That implies that an additional part of the brain is responsible for somebody learning fear responses.

According to study, the prefrontal cortex of the brain is responsible for the interpretation of sensory data. There have been some signs that point to this area being responsible for a person learning fear responses. Presumably, all fear is based on sensory data gathered by means of expertise. This would imply that, once a specific stimuli has been interpreted as an unwanted sensation, it causes the person to both subconsciously and actively avoid those sensations. Even though this does explain why men and women will avoid being caught in particular situations after having experienced them once prior to, this does not constantly equate to a person being afraid of said scenario.

The theory also does not explain certain instinctive reactions. Most men and women grow up afraid of particular things that they have not really experienced. If the above theory is to be accepted, it ought to locate a way to account for fear responses that appear entirely instinctive and are not explainable simply by previously acquired sensory data. Some professionals think that a combination of several areas of the brain, including the amygdala and the prefrontal cortex, act in conjunction whenever an individual is afraid, as well as determining what unknown factors need to make a individual afraid.

Study done by the University of Wisconsin have revealed that levels of a drenocorticotropic hormone (ACTH) are tied directly to levels of fear. The test used rhesus monkeys as a basis for a human model of the study, which had a notably similar result. The study also shows that there may well be a hereditary link between ACTH and fear. The analysis team discovered that mothers that were regularly scared, giving them higher levels of ACTH in their bloodstream, had offspring that exhibited the identical tendencies. The offspring of the scared rhesus monkeys had higher stress and ACTH levels than other people, suggesting a possible genetic link in ACTH production.