Literature Review on the Human Brain: Can Fear Be Prevented?

Why do you think some people enjoy fear while other not so much? Have you ever thought about why does our brain enjoy gothic which refers to fear, horror, death, and gloom, as well and why does it attract our attention. What makes our brain enjoy being afraid but not when it is a truly life-threatening situation what is it that our brain releases so that people could enjoy being afraid. Some people say that they enjoy fear but he or she has to know that they are in a safe environment why is that so.

“Fears are educated into us, and can, if we wish, be educated out.”-Karl Augustus Menninger.

Many researchers have sought out an explanation for the mysteries hidden within our brain and how it operates. Recent studies have shown that the brain functions more as a muscle allowing it to continue to grow or contract. If these studies prove to be true, this could forever change how people interact or associate with their brains.

The definition of fear is an unpleasant emotion resulting in being afraid of someone or something that is a dangerous threat. However, fear can come in many forms and affect people in several different ways. Fear is evident in all areas of life. Everyone experiences fear whether the outcome is positive or negative. Fear is no doubt inevitable. For example,whenever you have to present a speech, you may fear ridicule or judgement. Or when you are walking to your car late at night by yourself, you fear many dangerous situations that can happen. According to Mary C. Lamia in “The Complexity of Fear” in Psychology Today, fear in terms of psychology is described as the fear of the unknown, fear of death, and catastrophic fear. Mary C. Lamia has found

I read the article, “Secrets of the Brain”, found in the February 2014 issue of National Geographic written by Carl Zimmer. I chose this subject because I have been fascinated with the brain and how it works. The research of the brain has been ongoing for many centuries now. The history in this article is interesting. It explained how scientists used to understand the brain and its inner workings. For example, “in the ancient world physicians believed that the brain was made of phlegm. Aristotle looked on it as a refrigerator, cooling of the fiery heart. From his time through the Renaissance, anatomists declared with great authority that our perceptions, emotions, reasoning, and actions were all the result of “animal spirits”—mysterious, unknowable vapors that swirled through cavities in our head and traveled through our bodies.” (Zimmer, p. 38)

You are in an airport waiting for your plane to arrive. You've never flown before, and are more terrified than you can ever remember being. Everyone has told you the supposedly comforting statistics - "millions of planes take off each day and there's only a handful of crashes," "flying is safer than driving." You know rationally that there is no reason to be so scared, but regardless your heart is racing, your palms are sweating, and you're light-headed. Simply the thought of being up in the air, out of control, makes you feel faint. Finally the flight attendant announces that your plane has arrived. But as all the other passengers line up to get onboard, you grab your luggage and walk straight out of the airport,

The brain is one of the most complex organ in our bodies. To learn about the brain scientists use electrical stimulation. Electrical stimulation is the use of electrical probes to determine functions of the brain. Clinical observation of patients have also helped scientists learn more about the brain. Case studies of different patients such as Phineas Gage have helped to learn about the different functions of the brain and how they work together to perform complex activities. (Barron’s AP Psychology 6th Edition)

“The Gift Of Fear,” a psychology book written by Gavin De Becker, is an extremely useful and informative read. It gives valuable advice about how to act upon human intuition, how to recognize threats, and defines what real fear is and it’s purpose. I found the book to be extremely interesting. This book provided me with a sense of understanding on violence and fear and I feel much better prepared when it comes to recognizing dangerous situations.

According to PhycologyToday.com fear is an emotional response induced by a perceived threat, which causes a change in brain and organ function, as well as in behavior. Fear can lead us to become narcissistic, to run away from various issues, or to freeze up and become victim under circumstance, or it may come in the form of a discovery.

The development of the brain especially in early childhood years is very important and sets the tone for the future development of children. Chapter 3 of the book talks about how fear affects the brain and how it changes behavior. The Davidian children had been exposed to a huge amount of fear by David Koresch what he believed was for their own good. The discipline tactics he used seem extremely harsh and soul crushing especially to young children. Dr. Perry describes how fear is our primal emotion and something we need to survive, but if you always live in fear your brain is under constant stress and in a constant fight or flight mode.

Is it possible to rouse fear from a stimulus that at first caused no such response? Classical conditioning is a type of learning where a response is produced from combining a conditioned stimulus with an unconditioned stimulus to produce an unconditioned response. Ivan Pavlov did a famous study, pairing the sound of a bell with food to produce salivation. After a while, just the sound alone would produce salivation. “Little Albert”, an infant that belonged to a wet nurse at the Harriet Lane Home was experimented on by John B. Watson and Rosalie Rayner. Watson and Rayner claim that “Little Albert” was a healthy, unemotional, and stable child. The experiment began with the introduction of a white rat, which alone, produced no fear response. At 11 months and 3 days, the rat was paired with a loud noise. The loud noise frightened “Little Albert”. He began to associate the fear he experienced with the white rat since it was paired with the loud noise.

Many scientists have been turning to genes that may have a role in creating fearful memories for an explanation as to what causes PTSD. They have also been studying different areas of the brain that control fear and stress such as the amygdala and prefrontal cortex. The amygdala has a role in the early stages of learning to fear and not to fear certain situations. The prefrontal cortex is said to help control the extinction of long term fearful memories. An individual genetics, brain area growth, and other environmental factors play a role in the risk of the individual developing PTSD after a traumatic

Dr. R.W. Rogers created the Protection Motivation Theory in 1975. He proposed this theory to explain the effects of fear and how they can affect behavior. Rogers explained that fear initiates a cognitive process where the person takes into account a threat appraisal and a response appraisal which results in an adaptive or maladaptive behavior. Much of his work was based on Richard Lazarus and Howard Leventhal’s work on how people cope with fear. Their work focused on fear reaction divided into two processes: danger control (threat appraisal) derived from environmental cues and fear control (coping appraisal) an internal process. Rogers created the first three constructs of PMT based on environmental cues. They are referred to as threat

C. APPROACH: Based on our preliminary data on lncRNA changes in specific regions of the brain associated with contextual fear, we hypothesize that specific lncRNAs mediate consolidation and extinction of fear memories. To test this hypothesis, the Puthanveettil and Stackman laboratories will bring together their strong expertise in genomics, bioinformatics, noncoding RNAs, genetics, behavioral models, non-coding RNAs, bioinformatics and functional, in vivo manipulations of novel molecular players. We will employ a research strategy that starts with an unbiased, genome-wide analysis of lncRNAs and funnel down to key players, at which point mechanisms of action will be identified. First, unbiased expression analysis of lncRNAs will be carried out with contextual fear conditioning following extinction of contextual fear memory. Second, we will then carry out in vivo manipulation of specific lncRNAs in specific regions of the brain to determine necessity of the expression of specific lncRNAs in consolidation and extinction of fear memory. We anticipate that our studies will establish the functional importance of candidate lncRNAs in consolidation and extinction and provide novel insights into the novel molecular regulators and mechanisms underlying development of PTSDs. All of the genomics, bioinformatics and rodent behavior analyses will be carried out locally, at Scripps Florida and FAU, with confocal imaging experiments being performed across the street at the Max Planck

This, I led me too a love of psychology. How wonderful was it that there was a whole science devoted just to that one mystical organ? Studying the brain, we can unlock the doors to human