After reading the first file of the Brain Module called "Brain and Mental Disorders," I re-learned and discovered a lot of new information, especially concerning physiological disorders and illnesses, rather than personality and developmental ones. The first disease discussed was Multiple Sclerosis (MS). Although I knew it could significantly impact an individual, I did not remember that the cause of MS is unknown. I found it intriguing that the disease's effects can vary based on geographic location, though this factor becomes less significant after the age of 15.
The next disease covered was Huntington's disease, which progresses more rapidly than MS. This rapid progression is due to genetic and coding errors. The symptoms of Huntington's are diverse, ranging from personality changes to motor skill difficulties. Considering the assignment questions, I find it challenging to comprehend how brain injuries affect individuals because the brain controls so much and is incredibly intricate. It's astonishing to think that a person’s entire personality can change or they can lose significant physical abilities. Brain injuries can lead to symptoms like mood changes, sensory loss, and movement impairment. The case study "No Longer Gage" exemplified this, showing how a brain injury to the left frontal lobe drastically altered Phineas Gage's personality. Unlike typical injuries, brain injuries don't heal in the same way, making each one unique and difficult to understand. Even similar injuries can result in different symptoms due to the brain's complexity.
Continuing with the files on Traumatic Brain Injury (TBI) and other personality disorders, I learned about the high-risk groups for these injuries: males aged 15-24, substance abusers, infants, the elderly, and individuals with prior brain injuries. Causes of TBIs include car accidents, head injuries (both open and closed), hypoxia, blast forces, concussions, tumors, infections, strokes, and chemical exposure.
It was particularly interesting that people with TBIs struggle most with recognizing intense emotions like anger, fear, sadness, and disgust. These emotions might be more complex, but what defines an emotion as complex?
Regarding the question about how TBIs can affect health balance, the effects are substantial. TBIs can lead to a range of symptoms, from physical impairments to personality changes. The brain regulates hormone levels, so an injury can disrupt this balance and potentially lead to personality disorders due to these imbalances. Many illnesses worsen due to body imbalances, and TBIs contribute to this.
The case of Henry Molaison, who lost his ability to retain memories following brain surgery, highlights the brain's complexity. This case is particularly unsettling because it shows how fragile our memories are, stored in tissue and a complex structure that, if damaged, can erase significant parts of our identity.
After watching the TedEd video on drugs, I realised that most people, including myself, trust what we put into our bodies without fully understanding it. This made me reflect on Ayurveda and whether the substances I consume help maintain my physical, emotional, and mental balance. I’m not sure I would even recognize if I were reacting negatively to something.
Drugs interact with our brain's synapses and neurons, transmitting specific messages. Neurotransmitters either inhibit or excite neurons, facilitating new transmissions or chemicals. For instance, SSRIs, common antidepressants, prevent the reabsorption of serotonin, which modulates mood. I learned new information about illicit drugs as well; crystal meth induces prolonged dopamine release, cocaine blocks dopamine and serotonin reuptake, and hallucinogens block serotonin release, all affecting mood and behaviour.
The paper "Ayurveda and Natural Products Drug Discovery" revealed that natural medicines in places like India are integrated with Ayurveda and not stigmatised as they might be in the U.S., given our opioid crisis. I believe combining Ayurveda principles with modern science and medicine could be the best approach, potentially reducing addiction problems associated with pharmaceutical drugs while enhancing treatment effectiveness.
Now to add to all of these journal entries and things that I have learned and also read about I wanted to include ways that these topics relate to psychology, economics and sociology. The first one that I will bring into discussion about connections is how topics with the brain and drugs can relate to psychology. Psychology is the study and understanding of certain mental aspects and behaviours within humans, and can even be in other animals. Of course the brain has a huge part to play into psychology and understanding mental states and behaviours of others. With the earlier discussion of TBI’s, this can absolutely change the psychology of an individual. These injuries have been shown to change behaviour, mental states and even in extreme cases, personality. That was shown with the case earlier in this entry with Henry Molaison and the effects of his brain injury. Even without a serious trigger like a TBI, could a person undergo even slight changes in their psychology based on things like chemical imbalances? This leads into the discussion of how drugs can affect the psychology of a person or chemical balances. Stated earlier it was said that drugs react with our synapses and neurons which help with signalling and the intake or release of certain hormones. Mostly everyone is familiar with medications for mental health conditions such as depression, anxiety, ADHD and ect. We are also aware that these drugs are able to help remedy and allow someone to live with these mental health things safely because it helps balance the chemicals in our brain and certain intake or release. I would be curious if there are effects that are not so large but that can play into a person's psychology? Even with that out of the question we know for sure that these medications help change a person's psychology for a more positive outcome.
Within the realm of sociology which is the study of human behavior in society and patterns or interactions with these fields I wanted to share my opinions on how it connects to the topics of the brain and drugs. Of course the obvious is what was discussed earlier with it changing our behaviours but I wanted to make connections with more societal stereotypes and views with the society portion. About 60% of Americans who are at the age of 18 or over reported that they were using at least 1 type of prescribed medication. That is a huge portion which also gives room for societal stereotypes. There are some stereotypes that see prescribed medication as unhealthy and bad or they may even see the individual in a more negative light simply because of prescribed medications. With that large portion of just american citizens reporting to be using a prescribed medication, this leads into the connections of how economics relates to this. Most prescribed medications are on the more expensive side especially if you are having to pay out of pocket for these. With this money spending it pumps financials into the pharmaceutical world and provides mass amounts of money from people spending it on medications. In the U.S alone it is estimated that prescription drugs bring in around 60 billion dollars annually into our economics. That number alone is a massive number and is not the world annual money amount.
All three of these topics that are Psychology, Sociology and Economics can play huge parts into the Drug Research Industry as well as information about the brain such as traumatic brain injuries that were discussed in this paper.