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Friday, February 2, 2018

Striatum

Striatum


The striatum is part of the basal ganglia. The subcortical structure has been linked to emotion and reward anticipation. Interestingly, emotion has been studied not only by psychologists, but also by economists. While doubtless one of the most famous works on behavioral finance (e.g. prospect theory) was written in 1979 by Kahneman and Tversky, emotions have often been cited as predictors in financial decision-making.

Serving with a smile. Smile is often used to convey emotions and states of mind. Image: Copyright © Megan Jorgensen (Elena)

Investors are often classified as risk-averse (or risk-avoiding) and risk-neutral, whereas risk-loving (or risk-seeking) would be a more appropriate reference for gambling. As explained by Nicolle and coauthors (2010), risk taking behaviors may be influenced by regret, since the individual wants to avoid situations which would lead to the unpleasant feeling in the future. In their study, they found that the striatum mediated this relationship. In addition, others (Antzoulatos & Miller, 2011) showed that striatal neurons play a role in learning.

References:

  • Antzoulatos, E. G. and Miller, E. K. (2011). Differences between neural activity in prefrontal cortex and striatum during learning of novel abstract categories. Neuron, 71: 243-9.
  • Kahneman, D. and Tversky, A. (1979). Prospect theory: An analysis of decision under risk. Econometrica, 47 (2): 263-92.
  • Nicolle, A., Bach, D. R., Driver, J. and Dolan, R. J. (2010). A role for the striatum in regret-related choice repetition. Journal of Cognitive Neuroscience, 23 (4): 845-56.

Tuesday, January 30, 2018

Acceptance and Commitment Therapy

Acceptance and Commitment Therapy


Today, most mental illnesses are treated with medication, antidepressants, antipsychotics, anxiolytics, etc. However, aside from pharmacotherapy, other therapies such as Cognitive Behavioural Therapy (CBT) and Acceptance and Commitment Therapy (ACT). ACT may be used for a variety of mental illnesses, including schizophrenia. The goal of ACT is to recognize and accept unwanted experiences rather than trying to change them. For example, schizophrenia is characterized by delusions and hallucinations, such as hearing voices. ACT states that one needs to accept the fact that one hears these anxiety provoking voices, and instead must act on one’s personal values. The process may also be described as mindfulness.

Understanding one’s own values is critical for ACT. Image: Megan Jorgensen (Elena)

Thus, ACT has as its core a shift of attention from the disruptive experiences one cannot control, towards goals and values one wants to pursue and attain. A popular metaphor in ACT is that of a bus driver. A patient is asked to imagine he or she is driving a bus. On the bus, there are several rough, tough and noisy passengers who keep threatening, harassing and yelling at the driver. They also attempt to make the driver change direction. A lot of them are on the bus and it is very hard to ignore them. The patient is made aware that one of the only ways he or she could stop the harassment is to throw them off the bus, which would be hard to do because they are stronger, and because the bus needs to be stopped in order for that to happen. Therefore, by stopping the bus the driver gives up control instead of gaining it. The healthier choice would be to focus on the direction of the bus the driver wants to follow.

Most therapies have their limitations. Image: Megan Jorgensen (Elena)

While certainly an efficient therapy in some cases, ACT has its limitations. For instance, many believe that the bus driver model is too passive. Some maintain that instead of ignoring the voices, it may be more beneficial to confront them, but in a caring, accepting and compassionate manner.

Charisma

Charisma


By demonstrating exceptional self-belief, charm and grace through leadership, some people can develop admiration and loyalty in others, known as charisma. It is a the power of a people-centered approach in achieving results. In the Ancient history, Julius Caesar had a unique charisma as a leader and he used his charismatic leadership skills to develop one of the greatest hand-to-hand fighting forces ever known, and Caesar changed the course of history by bringing about the end of the Roman Republic. Surely, he was assassinated at the age of fifty-fife, but through a unique charismatic leadership developed a prestige that has lived on for two millennia.

“You must be the change you wish to see in the world” (Mahatma Gandhi). Illustration: Megan Jorgensen (Elena)

Tips to improve your charisma and assure your charismatic Leadership:

  • Make every individual feel highly valued
  • Demonstrate absolute belief in your vision
  • Make sacrifices for the values and ambitions of your vision
  • Use body language to support your verbal communication
  • Make your group feel secure and superior to others

A charismatic leader inspires other people with responsibility and ownership, rather than controlling them and discipline. If you a good leader, you’ll be able to create engaged teams who want to work for you, who will be able to fulfill themselves professionally and aspire to work to the best of their abilities. The end result of such a leadership will be achievement of all your shared ambitions.

Psychology of Human Motivation

Psychology of Human Motivation


Motivation is a very important topic in psychology and in the world at large, simply because most of what happens in the world is somehow related to motivation, albeit not all. So what are the motivational factors driving a person to run a marathon, to finish a book or to exercise on a daily basis. Human motivation psychologists have described several factors. For example, the sense of personal mastery, and internal versus external locus of control. Individuals with higher internal locus of control seem to be more motivated as a general rule.

Perhaps such phenomena are easier to understand from a contrasting viewpoint, or learned helplessness. Indeed, decades ago, well before powerful ethics’ committees revised psychological studies carefully, a series of experiments were carried out on dogs. The experiments which showed that continuous maltreatment of dogs led the canines to simply give up and not even try to fight the situation anymore. The aspect of the dogs’ behaviour have been deemed learned helplessness. Conversely, internal locus of control is the belief that one can and will influence one’s environment and outcomes if one puts effort into it.

What can motivate us to live? Photo by Elena

Motivation is loosely defined as the desire and drive to achieve one’s goals and pursue one’s aspirations. People often complain of not having enough motivation to complete the tasks they set themselves to do, such as running on the treadmill for half an hour, or go running and jogging around the house in the morning. Indeed, keeping fit is promoted by an active lifestyle, many aspects of which require motivation. In general, achievement in sport requires motivation, willpower and staying committed to a particular plan of action.

Thus, some strategies to remain motivated include, but are not limited to: making a commitment, keeping a record, visualizing the positive aspects, taking one step at a time, social support and setting realistic goals and expectations. Further, psychologists say that making a plan and sharing it with at least one other person may contribute to sticking with that plan. The proven trick of making to do lists seems to work as well. Writing a to do list on a calendar or a daily planner and checking off things as you complete them may help. Indeed, psychology of human motivation predicts that goals which are measurable are more motivational.

Moreover, psychological science also distinguishes between intrinsic and extrinsic motivation. A study showed that extrinsic motivation can actually impair intrinsic motivation. Intrinsic motivation refers to a situation when someone engages in an activity out of desire to participate in the activity itself. Conversely, extrinsic motivation corresponds to an external motivator such as a reward. In the study, researchers started to pay students for tasks the students enjoyed doing. After a while, it seemed that the students no longer wished to partake in the activities they once enjoyed unless they were being paid. One possible conclusion was that the activity had lost its intrinsic interest to the students, who now only valued what they could get for it.

Nonetheless, self-help books often recommend rewarding yourself after doing something you set yourself to do. Another motivational strategy includes social support and thinking about all the positive benefits derived from completing the task, such as a personal feeling of achievement or health benefits. A good suggestion in keeping realistic goals is to understand and expect that some things may feel difficult. Also, tasks appear more manageable and easier to do when done in small steps. Getting started is key to success! Finally, trying an activity at least five times before quitting is a good way of giving it a fair chance.

The Problem with Psychology

The Problem with Psychology


As many undergraduate students point out, psychology is a very interesting subject. In fact, psychology is among the most popular majors chosen at colleges and universities. However, there are several problems with the way that psychologists obtain data that is later taught in introductory and even higher level courses in the discipline. The study of psychology depends in large part on research studies. As many who have taken research methods or quantitative methods courses know, random sampling is crucial in ensuring that results can be generalized to the general population. Notwithstanding, most psychological research is done with psychology students, often in exchange for course credit (or percentage points towards the final course grade).

What is life? What is our nature? Photo by Elena

Thus, the samples used in psychological research are often far from being random and are consequently difficult to apply to the general population. The problem has often been described in the academic literature. Furthermore, in one particular study consisting of three parts, the behavioural scientists found that even among students, those who choose to participate in studies differ significantly from those who do not. As such, there are three different orientations described in the peer-reviewed article: prosocial, individualist and competitor. Naturally, prosocials are more oriented to help others and act altruistically. Alternatively, individualists are more concerned with self-interest or “what’s in it for them”. Finally, competitors focus on the difference of outcomes between their own performance and that of others.

The study (conducted by Van Lange et al., 2010) shows that students exhibiting prosocial orientation were more likely to participate in research than the other two groups. The researchers further theorized that students with a prosocial orientation were perhaps more likely to choose psychology as a major in the first place, given the opportunity in the field to help people. Indeed, psychologists often help people in the clinical and other settings. Therefore, the problem arises as to generalizing the findings of psychological research to the general population. Perhaps, the wisdom gained shows human nature in a skewed way, mostly applicable to undergraduate psychology students with a prosocial orientation and is thus inadmissible evidence to the population at large.

Reference:


  • Van Lange, P. A. M. et al. (2010). Who volunteers in our experiments? An empirical view of prosocial motivation in volunteering. Personality and Individual Differences.