Jehovah’s Witnesses are often judgmental and have a black and white view of the world. XJWs might carry on with these traits without knowing even it. This will hamper their personal growth as well as their capacity to help others. So let me introduce you to a concept in psychology called Unconditional Positive Regard.Continue reading Unconditional Positive Regard
Jehovah’s Witnesses teach that if we obey their rules we will live forever. Either by means of resurrection to heaven or to an earthly paradise. They teach that when people we love die they aren’t really dead. Instead, they are merely sleeping and we will see them again. This belief helps soothe the existential dread that many people experience. But what happens when you leave Jehovah’s Witnesses or other faith? How can you view life and death? Let’s take a moment and talk about life and its value.Continue reading What is the value of life?
When I was one of Jehovah’s Witnesses I felt stuck. I wanted to achieve things in my life and I wasn’t able to. This led me to be very depressed. Now, this was partly because of the limiting rules of the Witnesses and the harsh consequences for not following them. However even after leaving the Witnesses I’ve felt stuck at times not sure how to make progress on the things I wanted. Both Witnesses and former Witnesses alike may feel helpless to change or improve their lives. I found that journaling can help, let me explain how.Continue reading MAking Changes with Journaling
I did it. I did the unthinkable. I had become an apostate. I had written a letter to the church I had dedicated my life to and requested they never contact me again. I told them I was leaving their faith and going on to become a psychologist. To write this letter meant I had committed the unforgivable sin. I was filled with bitter-sweet emotion. I was sad but thrilled and I felt empowered like never before in my life. What is the unforgivable sin of apostacy and why was this letter so significant? Let me explain:
As a child I was diagnosed with dyslexia and A.D.D. but neither stopped me from spending hours looking at pictures in encyclopedias at my grandparents house and wondering about the science behind the natural world. My grandfather was an “Elder” and, other than the encyclopedia set, almost all the books my family owned were religious. Attempts to explore the non-religious interests I had were regularly stomped out. Eventually I stopped trying to pursue my personal interests, including my interest in science. My family was very loving but everything in their world existed in the context of religion. This is because I was born into a multi-generational family of Jehovah’s Witnesses. This religion is not an ordinary religion and it has been described “ultra-orthodox”, as “high control”, and even as a “doomsday cult” by experts.
The religion stands in opposition to science and it discourages the personal fulfillment of its members, especially if that fulfillment would involve doing something other than church activity. It controls its members through abusive intimidation tactics and shunning. My relationship with the religion was a bit like Stockholm Syndrome, a condition where victims’ bond with their abusers. On one hand it was my family’s culture for generations, everyone I know belonged to it, and I knew no other way of living. I have fond memories of some of it. On the other hand it was causing me deep despair because it seemed like had no control over how I lived my life. I wasn’t allowed to develop my own identity, pursue hobbies, invest time in things that I might be passionate about, play sports, or even have basic life experiences like date or socialize. If I left or criticized the religion I would be shunned and called an apostate. Witnesses, including myself, would rather die than be branded an apostate. This was a fate worse than literal death.
The lack of control and autonomy over my life caused me to be extremely depressed. The religion teaches that if you are depressed the solution is to be more engaged with the church. So I dedicated all my time to the church. I became what is called a “Ministerial Servant” and a “Pioneer”, and I learned Spanish and moved to a Spanish speaking congregation. I kept reading the bible and I kept giving more to the organization . I received a lot of praise from my family and community for doing these things. Unfortunately, I didn’t feel any better. I didn’t know what was wrong or how to fix it. Like a caged lab rat on wheel I was constantly running but going nowhere. I felt like there was no escape.
Then one day I was reading a magazine published by the church about depression. In it there was an unusual footnote referencing the “Feeling Good Handbook” by Dr. David Burns. I thought this was very odd as typically the religion only wants its members to read things that are published by their own organization. I immediately went and bought the book and I quickly read it cover to cover. Soon I found myself immersed in all kinds of self-help and psychology books. The religion is generally opposed to books about science, or psychology, so I felt a lot of shame as I read them but I continued on secretively.
The next book that captured my attention was Learned Optimism by Dr. Martin Seligman. There Seligman discussed Learned Helplessness. It’s a phenomenon, that he discovered along with Dr. Steven Maier, where lab animals stopped trying to escape when they were exposed to inescapable electric shocks. When an animal has no control and isn’t able to escape, they give up and stop trying to avoid the shocks. It’s thought that control or the perception of control is an important factor in developing depression or stress related disorders. I was filled to the brim with questions. How does learning helplessness work? What are its underlying biological mechanisms? Was helplessness really a good model for human depression? How does one learn to be resilient to helplessness? This phenomenon seemed to have an uncanny resemblance to my own religious experience! Had a lifetime of oppression caused me to become helpless?
Although learning about this was fascinating it did not alleviate my sadness. Eventually the Elders in the congregation told me that I had to see a therapist about my depression but gave me special instructions to not listen to the therapist’s advice and to only take medications. They said the therapist only wanted me to stop serving god. So, I went and got prescribed Prozac.
The medication made me feel extremely sick and lethargic. I stopped attending religious meetings and I stopped preaching. The medication left me with no motivation to do anything. The elders then said I was “mentally unstable” and they stripped me of all the positions I had in the congregation and told me to leave the Spanish congregation. This was devastating. I was labeled “spiritually sick” and the shunning followed. I had to leave my job because of harassment from members of the church. Apart from the religion, my family, and my community I had nothing. I had no career, degree or life skills because all of my life had been dedicated to the church. I had finally reached rock bottom.
That’s when it happened. I did the unthinkable. I revolted. I became an apostate. I thought critically of the religion of my birth. Abandoning my faith wasn’t something that I took lightly. The word apostate comes from an ancient Greek word meaning one who revolts or defects. Apostacy is considered an unforgivable sin in the church; a special sin deserving of death. A sin deserving of death and yet by it I gained my life. I gained control. It meant I was no longer helpless. After I sent my letter ending my relationship with the church my nearly life-long depression soon lifted. Apostate is a badge I now wear with honor.
So I’m taking a quick brake this morning to make some edits to my website. I really like how things are developing. I felt a bit lost as to what to do with my MisterMiceGuy stuff but I think I’ve been slowly figuring it out. MisterMiceGuy is definetly not finished and more will be coming !
As for graduate school man have I been busy! So far nothing has been incredibly hard. How I have described it so far is that there are a lot of balls to juggle. Each ball isn’t particularly difficult to manage its just that there are a lot of them moving all at the same time. That’s where the challenge comes in.
Its also been a challenge because of the coronavirus. We have to wear masks everywhere on campus and including the downtown area. Which is a pain in the butt and my ears are sore from wearing a mask all the time. Additionally I have to self-test for the virus twice a week and submit my results. All of this is a pain but its manageable.
It’s funny how when you look back in time it seems as though all that has happened has happened in the blink of an eye. It was just 5 or 6 years ago when I officially escaped the high control religion that I was born into. My life was totally different then. I thought I would take a moment to night to reflect on where I have come from and where I am going.
A few short years ago I was still one of Jehovah’s Witnesses. I was a pioneer and ministerial servant in a spanish language congregation. I was terribly sad and I felt extremely empty and unfulfilled. I was only ever encouraged to do more for the religion and read more bible and more of their religious literature. When I did not find that to be fulfilling or happy I was attacked, gaslit, and shunned by people who I considered to be my friends in the religion. It felt like my life was over. I didn’t know who I was or what I believed. This was in 2014. For a good year or so I believe that the religions teachings were true but it was just that the congregation was filled with corrupt and evil people.
However after a solid year of living in confusion I had a thought that helped me wake up. I thought if God had given me a brain and intellectual ability that is greater than other species then why would he forbid me from using it? It would not make sense that a God who loves truth and justice would not want an individual to stand up for truth and justice. Then in late 2015 I realized the cold hard truth. Jehovah’s Witnesses are a cult.
When I realized this it was like all the confusion I felt throughout my life made sense. It was like I had been collecting puzzle pieces throughout my life and trying to piece them together but I was missing the big picture. Then as if in an instant all the pieces came together. It all made sense when I considered that the beliefs and practices of Jehovah’s Witnesses were manipulative and toxic.
After I came to that realization I began to heal. Leaving the Jehovah’s Witnesses is extremely difficult. Members are discouraged from pursuing education, a career, having friends outside the congregation, and even from having passions and hobbies outside of the church. In the religion you as an individual don’t exist. You only exist as part of a religious collective.
As I was saying, a result of these things it is extremely difficult to leave. I had so many questions and unknowns. Who was I? What did I like? What did I want from life? It might sound strange but I simply didn’t know. Reconnecting with myself was arduous work.
Eventually during I started to remember or realize my love of psychology and biology. My love for these things combined with my desire to help others like myself motivated me to return to school. Initially I was going to school to become a licensed therapist and then my focus changed to becoming a school psychologist.
I still had doubts about whether or not that was what I wanted. So I took some classes on teaching in elementary school. The class was fine but it didn’t excite me. At the same time I was also in a neuroscience class and I noticed that the topics not only interested me but I felt energized thinking about them. So I reached out to that professor to discuss career opportunities and my education goals.
After explaining my interests I was told that my interests were in the field of “cognitive behavioral neuroscience” and that was at that time that I had heard that phrase. Long story short, I wound up becoming an Honors Psychology Student, conducting undergraduate research in behavioral neuroscience, writing a thesis paper, and setting the goal of getting into a PhD program. I then found myself searching for graduate schools, writing emails, taking the GREs, and applying. In the end I only ended up applying for one program and I was accepted.
Seemingly at breakneck speed I am now here at my new University as a Phd Student and Graduate Assistant. Looking back it’s been a real journey getting here. I’ve only been in my new town at my new university for about 1 week and half but honestly it feels like I am where I need to be. Classes have not officially started yet but things feel good. As one of Jehovah’s Witnesses I never felt fulfillment. I never felt like I belong.
I’m starting to feel those things now.
The first documented version of the pink-eyed dilution mutation is believed to come from Asia and today there are over 100 documented varieties. Some of them occurred due to spontaneous natural mutations while others were induced mutations by means of x-ray or chemical mutagens. The genes occur on chromosome 7 and its referred to as the P-locus (Brilliant, Ching, Nakatsu, and Eicher 1994). The version of P-locus gene that is present in the fancy mouse hobby is simply called “Pink-Eye Dilution” (p). This is reported to be the oldest and most common version of the gene (Silvers 1979).
A common feature among these P-locus genes is a reduction in coat color and eye color pigment. Depending on the version of the gene this effect can be minor or extreme. Although the pink-eye effect can appear similar to that of C-locus genes, such as albino or siamese, but the genes are different and occur at a different locus (The Finnish Mouse Club 2020, Brilliant, Ching, Nakatsu, and Eicher 1994).
The genotype for homozygous pink eye is “p/p” but this is always combined with other coat color genes and produces a variety of phenotypes (American Fancy Rat and Mouse Association 2019).
Another thing to keep in mind that different Fancy Mouse Clubs may use different terms to describe a phenotype even though the genotype may be the same. For example mice that have the pink-eyed black genotype (aa pp) may be referred to as Dove, Lilac (The Finnish Mouse Club 2020) or blue lilac (Silvers 1979). Conversely, sometimes a phenotype name may be used regardless of the mouses genotype (Fance Mouse Breeders Association 2020).
Some common phenotype names that involve the pink-eye dilution gene include Dove, Pink-eyed Dove, Lilac, Blue Lilac, Silver, Pink-eyed Blue, champagne, Cream, Chinchillated Dove, Lavender, Orange, Argente, Blue Argente, Argnete Creme, Pink-eyed Fawn, Cinnamon, Fawn, or White. Pink-Eye Dilution gene can also accompany any variety of marking such as pied, spashed, broken, hereford, head spot, rumpwhite, merle, roan or any variety of coat type such as nude, angora, texel, or frizzie (Fance Mouse Breeders Association 2020, Silvers 1979, The Finnish Mouse Club 2020, American Fancy Rat and Mouse Association 2019).
Brilliant, M., Ching, A., Nakatsu, Y, and Eicher, E. (1994) The Original Pink-Eyed Dilution Mutation (p ) Arose in Asiatic Mice: Implications for the H4 Minor Histocompatibility Antigen, Myodl Regulation and the Origin of Inbred Strains. Genetics, 138, 203-211
Silvers, W. (1979) The Coat Colors of Mice: A Model for Mammalian Gene Action and Interaction. Springer Verlag, Retrieved from: http://www.informatics.jax.org/wksilvers/index.shtml
American Fancy Rat and Mouse Association (2019) Fancy Mouse Genes, Alphabetical Name Listing, Retireved from: https://www.afrma.org/geneticsblackmse.htm
The Finnish Mouse Club (2020) P-locus. Retrieved from: http://www.hiiret.fi/eng/breeding/?pg=5&sub=7
Fancy Mouse Breeder’s Association (2020) Show Standards. Retrieved from: http://www.fmbamice.com/show-standards/
The following is a literature review I wrote in 2017 on the subject of Top-Down and Bottom-up cognitive processing and PTSD.
Our perception of the world around us is affected by our attention processing styles. Attention processing styles can be divided into top-down and bottom-up styles. (Avery, Dutt & Krichmar 2014) Bottom-up processing refers to the processing of sensory stimulus whereas top-down processing refers to the processing of goal directed thought (Goldstein 2015, Avery, Dutt & Krichmar 2014). Posttraumatic Stress Disorder (PTSD) symptoms, effect nearly 10% of the population, include disturbances in the processing of environmental sensory experiences. (Fagelson 2007, Stewart & White 2008). Because of this it is worth examining altered attention processing and its role in PTSD. First, we will examine the nature of PTSD and its symptoms. Secondly, we will examine Attention Processing theories, with an emphasis on Gibson’s bottom-up processing theory. Then we look at cognitive factors such as bottom-up processing and their relationship to PTSD. Lastly, we will consider the brain regions that are implicated in both bottom-up processing and top down processing as they relate to PTSD.
What is Post Traumatic Stress Disorder?
PTSD is a type of anxiety disorder and is often seen as the result of wars, natural disasters, and domestic violence. These sorts of trauma usually involve exposure to real or perceived threats of serious injury or death. This results in the symptoms that are associated with PTSD such as reexperiencing the distressing event, avoidance of stimuli that are reminders of the event, exaggerated startle response, increased general arousal and hypervigilance (Victor et al 2005, Stewart & White 2008, Calhoun et al 2011). Of interest to processing styles is the inability to manage and filter stimuli and hypervigilance. (Lane, Chua & Dolan 1999, Stewart & White 2008)
The inability to filter sensory stimuli is one major factor in PTSD symptoms. Disruptions to sensory filtering are described as a failure to filter responses to environmental stimuli that are not relevant. (Stewart & White 2008) Although there seems to be a connection between sensory filtering and PTSD symptoms such as re-experiencing traumatic events or hypervigilance the exact relationship is not clearly defined but prior research has established a relationship between stress and pain and reduced sensory filtering (Stewart & White 2008).
Theories of Attention Processing
Bottom-Up, Direct Processing Theory. James Gibson’s theory of direct perception discusses bottom-up style processing. In his view evolution drove humans to develop a bottom-up approach to attention processing due to the need to survive in a hostile world. It is thought that selective pressures caused the development of receptors that were sensitive to meaningful stimuli in the environment (Démuth 2013).
Gibson goes on to theorize that our perception is caused by optical flows. This optical flows can be understood as patterns of light in the environment. Light from the environment enters the sensory organs, the eyes, and transmit information about an object in the environment. There are billions of of light waves entering the eyes at any given time and many details such as shape, size, and texture can be observed in this way. Although he discussed light rays, Gibson’s theory equally applies to any sensory input including touch or sound (Démuth 2013).
Gibson postulated that our position and physical proximity to objects in the environment affect our field of view. Changing position and proximity changes our visual field and allows us to map our environment from different angles. This allows us to gather further information such as texture gradients and the relative size of objects in our field of view. Gibson thought that the main feature in our perception was the stimulus from the environment, ie light waves, sound waves etc and that these stimuli were mainly just processed by the receptor organs. He postulated that the perception of these stimuli is consistent, objective and unchanging (Démuth 2013).
Top-down, Indirect Perception Theory. Unlike Gibson, Richard Gregory’s theory indicates that although we perceive sensory stimuli, the stimuli themselves are not important. Instead Gregory says it’s our interpretation of them that is important. He goes on to explain that our interpretation of stimulus is subjective and the interpretation of them is subject to prior experience (Démuth 2013).
Gregory believed that our subjective interpretation of stimulus was processed in higher corext centers of the brain. Unlike Gibson, he felt that both our receptors (eyes, ears etc) and our brain are important in perception. According to Gregory the sensory receptors receive ambiguous data that must be then interpreted by the brain itself. He states that the processes of attention is an active process where an individual extracts environmental stimuli, evaluates it, and interprets. He states that perception itself is the end result of this complex multistep process. Gregory also states that an individuals prior knowledge, motivation, and emotions play an integral role in an individual’s interpretation of the environmental stimuli (Démuth 2013).
Due to all the factors that are involved in top down processing there are a variety of way that an individual may interpret any particular set of stimuli. This may sometimes lead to inaccurate interpretations of stimuli (Démuth 2013).
Attention Processing and PTSD
PTSD is often associated with wartime trauma and prior research has suggested that exposure to loud noises of combat may contribute to sensory filtering disturbances (Victor et al 2005, Stewart & White 2008). However current research suggests that sensory filtering disturbances and hypervigilance can occur due to a variety trauma and is not singularly the result of wartime trauma or exposure to related noise. Researchers used self-report measures to assess undergraduate students with PTSD, students with trauma but no PTSD diagnosis, and students with minor trauma history. (Stewart & White 2008)
They found that persons with both high trauma and PTSD had altered sensory filtering but individuals with minor trauma did not. These finding suggest that trauma may cause altered sensory filtering and therefore changes to bottom-up processing. However, one limitation to these findings is that participants were not assessed for sensory processing before and after the trauma and therefore it is hard to discern if increased trauma causes changes to processing resulting in PTSD symptoms or if these individuals had pre-existing sensory processing issues that when combined with high levels of trauma predispose them to PTSD symptoms. It’s important to note that persons who experience PTSD may also comorbidly experience depression and other anxiety disorders. These disorders can also impact attention and processing and may affect the result of research (Dalgleish et al 2003).
Additional studies have shown that pain, stress and anxiety are associated with reduced ability to filter environmental stimuli, all of these are associated with PTSD. (Stewart & White 2008, Lane, Chua & Dolan 1999). The changes to processing of environmental stimulus, as in the case PTSD, directly relates to the cognitive factors that are described by Gibson’s Bottom up processing theory (Démuth 2013).
Bottom-up processing is implicated in emotions, perception, learning, and memory. Interestingly emotion, perception, learning, and memory are all areas that have been shown to be altered in persons diagnosed with PTSD causing individuals to have an increased reactions to environmental stimuli. (Lane, Chua & Dolan 1999, Oschner et al. 2009). Bottom up processing is also associated with experiencing pain and chronic pain is associated with PTSD (Asmundson & Taylor 2006) Additionally the PTSD symptom of hypervigilance relates to bottom up processing in that this processing style is associated with stimulus salience, responding to environmental stimulants like color, contrast or movement (Goldstein 2015, Stewart & White 2008, Démuth 2013).
Attention, PTSD, and the Brain
The physical brain and all related activities are affected by attention processing. (Goldstein 2015 p. 112) The prefrontal cortex and the amygdala specifically are implicated in Gibson’s Bottom-up theory, Gregory’s top-down theory, and in PTSD symptoms. (Victor et al 2005, Koch et al. 2013, Démuth 2013) The relationship between various brain regions is complex and and research differentiating between the role of top-down and bottom-up processes in the brain has been limited. This is because prior studies were behavioral in nature and only measured behavioral results as opposed to the results produced by modern fMRI studies. Of the existing neuroscience studies many have focused on bottom-up processes and their role in brain systems such as the amygdala. Few studies have focused on top-down processes (Oschner et al. 2009). The prefrontal cortex is usually associated with top-down processing and reduced ability to control fear response. There is a large body of research that associates the amygdala with bottom-up processing and increased sensitivity and decreased ability to filter environmental stimulus (Avery, Dutt & Krichmar 2014, Oschner et al. 2009, Reynaud et al. 2015, Scheider et al. 2015, Koch et al 2013).
Additionally, in individuals who experience PTSD, blood flow to the prefrontal cortex is inversely correlated with the blood flow to the amygdala (Reynaud et al. 2015). This suggests that increased blood flow to the amygdala would produce an increase in emotional reactions to environmental stimuli in harmy with Gibson’s bottom-up theory. The corresponding decreasing in blood flow to the prefrontal cortex would produce a decrease in cognitive ability to assess and environmental stimuli appropriately and this is in harmony with Gregory’s top-down theory.
Another interesting relationship between the prefrontal cortex and amygdala is found in research regarding animals that were selectively bred for reduced fear. These animals had decreased volume in the amygdala and increased volume in the prefrontal cortex. This again suggest that the amygdala is important in Gibson’s Bottom-up theory of attention processing and the prefrontal cortex is important in Gregory’s top-down processing theory. (Brusini et al. 2018, Démuth 2013). This supports the idea that the larger prefrontal cortex is giving the animals greater top-down ability to process and filter irrelevant stimuli that would normally be interpreted as fear inducing by the amygdala.
A study by Oschner et al. (2009) they found specifically that only the left amygdala was activated in top-down processing but both the left and right were activated by bottom-up processing. In this study involving 20 females participants were shown an image and told to respond naturally to the image or to generate a negative emotional response. Researchers were trying to asses the brain regions responsible for the different types of emotion generation. The natural response to the image was considered the bottom-up response and the deliberate generation of a negative response was considered the top-down response. There findings suggest that the left amygdala is responsible for both types of emotion processing. They found that the only the bilateral amygdala, occipitotemporal cortex, the right parietal cortex and the lateral prefrontal cortex were activated during bottom up processing specifically. The left ventral and dorsal lateral prefrontal cortex, the bilateral dorsal medial prefrontal and anterior cingulate cortex, and the bilateral temporal cortex and putamen were only activated during top-down processing (Oschner et al. 2009).
This suggests that the left amygdala may be affected more by top-down processing that relates to emotion and anxiety and interestingly some studies have found that individuals with PTSD have consistently smaller left amygdalas (Koch et al 2014). The left amygdala specifically may be implicated Gregory’s top-down theory of higher processing whereas and the bilateral amygdala, lateral prefrontal cortex, and parietal cortex are related to Gibson’s bottom-up pressing. Additional studies found that the amygdala was activated in individuals with PTSD when they were shown trauma-related stimuli, this further stresses the role of these brain regions in PTSD and altered attention processing (Oschner et al. 2009, Koch et al 2014).
We have looked at the symptoms and causes of PTSD as they relate to attention processing. We examined Gibson’s theory of bottom-up processing and how it may be augmented individuals with PTSD. We also reviewed Gregory’s theory and explored how top-down processing might be reduced in individuals with PTSD. Lastly we looked at brain regions that may play a role in both attention processing and PTSD. We saw how the amygdala plays an important role in bottom-up processing and the prefrontal cortex plays a role in top-down processing. We also noted that in individuals with PTSD activation and blood flow to these these areas is inversely correlated.
Asmundson G.J.G., Taylor S. (2006) PTSD and Chronic Pain: Cognitive-Behavioral Perspectives and Practical Implications. In: Young G., Nicholson K., Kane A.W. (eds) Psychological Knowledge in Court. Springer, Boston, MA (pp.225-241)
Avery, M., Dutt, N., Krichmar, J. (2015) Mechanism underlying the basal forebrain enhancement of top-down and bottom-up attention. European Journal of Neuroscience, 39, 852-865
Brusini, M., Wanga, C., Rubind, C., Ringe, H., Afonso, S., Blanco-Aguiar, J., Ferrand, N., Rafatid, N., Villafuerteh, R., Smedbya, Ö., Dambergi, P., Hallbööke, F., Fredriksonj, M., and Anderssond, L. (2018) Changes In Brain Architecture Are Consistent With Altered Fear Processing In Domestic Rabbits. Proceedings of the National Academy of Sciences of the United States of America, 115(28), 7380-7385.
Calhoun, P., Wagner, R., McClernon, J., Lee, S., Dennis, M., Vrana, S., Clancy, C., Collie, C., Johnson, Y., and Beckham, J. (2011) The effect of nicotine and trauma context on acoustic startle in smokers with and without posttraumatic stress disorder. Psychopharmacology, 215, 379-389.
Dalgleish, T., Taghavi, R., Neshat-Doost, H., Moradi, A., Canterbury, R., and Yule, W. (2003)
Patterns of Processing Bias for Emotional Information Across Clinical Disorders: A Comparison of Attention, Memory, and Prospective Cognition in Children and Adolescents With Depression, Generalized Anxiety, and Posttraumatic Stress Disorder. Journal of Clinical Child and Adolescent Psychology, 31(1), 10-21.
Démuth, A. (2013) Perception Theories. Trnava, Slovakia: Filozofická fakulta Trnavskej univerzity v Trnave.
Fagelson, M. (2007) The association between tinnitus and posttraumatic stress disorder. Journal of Audiology, 16(2), 107-17.
Goldstein, B.E. (2015) Cognitive Psychology. Stamford, Connecticut: Cengage Learning
Koch, S., Zuiden, M., Nawijn, L., Frijling, J., Veltman, D., and Olff, M. (2014) Intranasal oxytocin as a strategy medication-enhanced psychotherapy of PTSD: Salience processing and fear inhibition processes. Psychoneuroendocrinology, 40, 242-256.
Lane, R., Chua, P., Dolan, R. (1999) Common effects of emotional valence, arousal and attention on neural activation during visual processing of pictures. Neuropsychologia, 37(9), 989-997. https://doi.org/10.1016/S0028-3932(99)00017-2
Ochsener, K., Ray, R., Hughes, B., McRae, K., Cooper, J., Weber, J., Gabrieli, J., Gross, J. (2009) Bottom-up And Top-down Processes In Emotion Generation: Common And Distinct Neural Mechanisms. Psychological Science, 20(11), 1322-1331.
Reynaud, E., Guedj, E., Trousselard, M., Koury-Malhame, M., Zenjidjian, X., Fakra, E., Souville, M., Nazarian, B., Blin, O., Canini, F., Khalfa, S. (2005) Acute stress disorder modifies cerebral activity of amygdala and prefrontal cortex. Cognitive Neuroscience, 6(1), 39-43. dx.doi,org/10.1080/17588928.2014.996212
Schneider, K., Schote, A., Mayer, J., & Frings, C. (2015) Genes of the dopaminergic system selectively modulate top-down but not bottom-up attention. Cognitive, Affective, and Behavioral Neuroscience, 15, 104-116.
Stewart, L., & White, P. (2008) Sensory filtering phenomenology in PTSD. Depression and Anxiety, 25, 38-45.
Victor, W., Demetrios, J., Fernandez, A., Brooks, M., Hettermal, J. and Pandurangi, K. (2005) Posttraumatic Stress Disorder: Clinical Features, Pathophysiology, and Treatment. The American Journal of Medicine, 119(5), 383-390. https://doi.org/10.1016/j.amjmed.2005.09.027