Tuesday, August 30, 2011
Time to Learn Greek!
Perhaps some of the readers would like to join me? The best way to learn Greek is to actually take a class, but there are many online resources as well! In fact, I am making myself one of those resources. As I learn the Greek language, I will be posting updates and pointers. I would also be happy to answer questions (or take questions and bring them to my professor). The number of posts I do on the Greek language will depend largely on the interest shown by readers!
Anyway, if any of you would like to take the first step, find yourself a copy of the Greek alphabet online and memorize the letters and the sounds that go along with them! If there is interest, I will outline the next few steps to take in learning Greek. Remember, any amount of Greek you learn will be helpful! This is especially true when you combine your knowledge of Greek with online resources such as NetBible.org!
Consciousness: Chapter 2 "The Spiritual Doorway in the Brain"
Have you ever wondered how you’re able to multi task so easily? Do you ever find it really cool that you can sense many things at one time? Do you know what consciousness is? One of the really interesting things about the brain is consciousness which is the state of being able to voluntarily respond to your surroundings. Imagine what we are aware of on a daily basis and what we are not. In this post I’ll be continuing my summary of Dr. Nelson’s The Spiritual Doorway in the Brain.
Think about your left leg. Before I mentioned your left leg you probably weren’t “aware” of where it was or what position it was in but now you’re thinking about how it itches or something of the like. Your mind was always aware of your foot but it was not at the fore front of your mind. According to Dr. Nelson, the brainstem functions as an on and off switch for the brain. There are three states of consciousness that the brain stem awakens: wakefulness, Rapid Eye Movement (REM) sleep, and non-REM sleep.
Dr. Nelson (the author of The Spiritual Doorway to the Brain) stated that a person has a spiritual experience when they become stuck between two of the states of consciousness mentioned above. He refers to this merging of conscious states as borderlands. A patient Nelson calls Jan found herself in the borderlands between dreaming and wakefulness when she was aware, but paralyzed by a drug during surgery.
Jan can recall exactly what happened during her surgery and exactly how badly it hurt for the surgeons to cut through her flesh (gross, I know). She went into a different state she labeled a spiritual experience (as so many of us do), during which she felt a sense of peace and the presence of her mother telling her that she was not going to die. During her surgery Jan had lost most of the blood flow to her brain. This lack of oxygen coupled with intense pain caused her to slowly lose consciousness and fall into Dr. Nelson’s ‘borderlands’.
Jan’s case, although gruesome, had the clear features of a spiritual experience: It gave her an inner peace, it lasted a short period of time, she had trouble articulating how it felt, her mother gave her a message that she would not die from this experience and it affected her life thereafter. Her experience can be explained by what we know about neuroscience as a simple physiologically induced state of mind.
What does this mean about what we should take away from these experiences? To more completely understand consciousness we have to delve into some science here. Bear with me, I promise to try to make it fun.
First, the neuron is a unique cell which communicates both chemically and electrically, and is composed of a body (soma), dendrites (usually accepts information from axons) and axons (usually sends information to dendrites). But there are also spinal nerves which project from the spinal cord to a place in your body like your left knee, this neuron works both ways. Another neuron projects from the spinal cord neuron to separate muscles which all work in tandem to move an appendage. This is actually how our reflexes work: The brain gets information about what is happening (a one way stream of information) but the task of a knee jerk reflex is handled completely by the spinal cord and not the brain.
Conversely, consciousness is the result of communication between multiple areas of the brain. A single neuron or even twenty cannot have consciousness. We’re talking about columns of cells in the cortex (outer bumpy region of the brain that we see) that can be hundreds to thousands of cells thick. The different sensations we receive, are perceived (or become aware to us) through certain areas within the brain, which are then called “active”. The activity of these brain areas are processed via the thalamus which is located above the brain stem (little lump between the brain and the spinal cord). After the thalamus processes this information, it sends it back to different areas of the cortex (the area for decision making and analysis) and then we “consciously” process the information we’ve been processing all along and didn’t really know it.
Whew! That wasn’t so bad was it?
Nelson calls the brainstem the switch for the three types of consciousness and when this switch gets stuck (something abnormal happens) the patient enters the borderland state. The brain stem is the area that Nelson really investigates during his research, which makes him different than other neuroscientists researching the same topic (it’s usually the thalamus).
Clearly, reflexes are very different from consciousness and should never be confused for one another as they seemed to be in the case of Theresa Schiavo. You may remember the woman who was in a coma years ago. There was controversy over whether or not she was actually in a permanent vegetative state. Her family wanted to believe (understandably) that she would return to normal and in their grief they misinterpreted her reflexes for consciousness.
Although her brainstem was still activating/arousing her mind, she was going to be stuck in a borderland cycling between wakefulness and REM sleep because of the part of her brain that was injured. There must be a clear line between minimal consciousness and the vegetative state, but it is hard to distinguish by just observing a patient. This is why it is necessary to use tools like PET scans and MRIs to more thoroughly understand the physiology of these patient’s brains.
The next question Nelson attempts to tackle is: Is a spiritual experience another state of consciousness? Nelson asks, “Maybe spiritual experience erupts in the borderlands between consciousnesses, unconsciousness, and dreaming—when our consciousness states are not a whole but fragmented and blended: a hybrid.” The self has everything to do with a spiritual experience given the nature of the experience. So we must tack down exactly what is this thing we call the self.
Join me next chapter: The Fragmented Self!!!
Monday, August 29, 2011
The Failure of the Christological Argument?
- an extraordinary event manifesting divine intervention in human affairs
- an extremely outstanding or unusual event, thing, or accomplishment
Sunday, August 28, 2011
The Job of Historians, Ehrman vs Craig
Is the resurrection of Jesus an event supported by historical evidence?
This series of posts is dedicated to summarizing and analyzing a debate between Dr. William Lane Craig and Dr. Bart Ehrman. This post is a brief introduction to what it is that historians seek to accomplish. Later on in the discussion concerning the historicity of the resurrection, this information will become vitally important.
Here are two brief quotes from Dr. Ehrman:
“Let me begin by explaining in simple terms what it is that historians do. Historians try to establish to the best of their ability what probably happened in the past. We can’t really know the past because the past is done with. We think we know [the] past in some instances because we have such good evidence for what happened in the past, but in other cases we don’t know, and in some cases we just have to throw up our hands in despair.”
“Historians can only establish what probably happened in the past. The problem with historians is they can’t repeat an experiment. Today, if we want proof for something, it’s very simple to get proof for many things in the natural sciences; in the experimental sciences we have proof. If I wanted to prove to you that bars of ivory soap float, but bars of iron sink, all I need to do is get 50 tubs of lukewarm water and start chucking in the bars. The Ivory soap will always float, the iron will always sink, and after a while we’ll have a level of what you might call predicted probability, that if I do it again, the iron is going to sink again, and the soap is going to float again. We can repeat the experiments doing experimental science. But we can’t repeat the experiments in history because once history happens, it’s over.”
I am in complete agreement with Dr. Ehrman on what historians attempt to do. We collect as much evidence as possible and then assign a probability as to whether or not an event happened in the past. Some events almost definitely took place, such as World War II. Unfortunately, as we move further and further into the past our vision becomes increasingly blurry. For a list of some of the specific criteria used by historians, check out http://honestsearchfortruth.blogspot.com/2011/06/historical-argument-criteria-for.html.
Wednesday, August 24, 2011
Spiritual Doorway in the Brain Chapter 1
I was recently given a book that will aid us in the search for truth entitled The Spiritual Doorway in the Brain by Kevin Nelson M.D. I will be summarizing each chapter and discussing points I find interesting and pressing for our intellectual search. Dr. Nelson noted in the prologue and at the end of the first chapter that his research has shown that spiritual experiences during a near death experience can be linked with the brain system that controls REM cycles during sleep. This was really exciting to find out because I have been interested in this type of research ever since I decided to study neuroscience. Plus, it makes so much sense, seeing as REM is the only sleep cycle in which we are dreaming, hence the strong emotions and dreamy-state.
Dr. Nelson refers to Henry James whose foundation many neuroscientists have, and are currently building on. Nelson uses James’ four qualities he found to be standard in all spiritual experiences:
- It is beyond words.
- It imparts some knowledge or insight.
- It is brief in duration.
- It is passive in nature.
Nelson uses case studies to describe the effects of brain injuries and he uses the description any acquaintance would give of their near death experiences.
1. Those who have had a spiritual experience will attest that it is difficult to describe what occurs during the dream-like state that surrounds someone during a spiritual experience. Nelson states that this indicates that the areas of the brain dedicated to language are not involved.
2. If you had a spiritual experience you felt as though something important and outside of yourself imparted some knowledge to you. Some people take this very seriously, depending on the intensity of the experience, and begin to base their lives on how it made them feel. The limbic system is usually the culprit for this phenomenon because it increases heart rate and gives a flight or fight reaction. It is the connected with emotions and emotional response and can impart a feeling of awe or shock (the only type of middle ground).
3. This type of surge of electrical or chemical impulse can only last so long due to the complex physiology of the brain. (Hopefully one day I’ll get that far along in my explanation on this blog!) Due to the intensity of the experience it seems brief. If this feeling lasted longer it wouldn’t give the intensity of emotion that leaves an impression deep enough to make someone want to change their lives.
4. The strangest thing about spiritual experiences is usually when and where the event occurs. The event seems to come on suddenly and without any sort of obvious trigger (more obvious now that we have a deeper scientific understanding of the brain) to the person having the experience. Therefore, they usually attribute the experience to something great and outside of them (often times God).
Further in the book I’m sure we’ll find more information on Dr. Nelson’s research and his fascinating conclusions. I can’t wait to move onto the next chapter and leave the next post. Keep an eye out if you found this interesting!!
Top 5 Posts
Note: Before reading the top 5, I highly recommend reading 'The Golden Rule'- http://honestsearchfortruth.blogspot.com/2011/05/golden-rule-is-universal-principle-in.html
1. God does not love everyone, here is why http://honestsearchfortruth.blogspot.com/2011/06/god-does-not-love-everyone-here-is-why.html
2. Fundamental Assumptions (Part 2) http://honestsearchfortruth.blogspot.com/2011/06/fundamental-assumptions-part-2.html
3. Does Faith Have to be Blind? http://honestsearchfortruth.blogspot.com/2011/05/does-faith-have-to-be-blind.html
4. The Death of Judas http://honestsearchfortruth.blogspot.com/2011/08/death-of-judas.html
5. There is No Evidence that the Disciples Died for Their Beliefs http://honestsearchfortruth.blogspot.com/2011/06/there-is-no-evidence-that-disciples.html
Monday, August 22, 2011
Bonjour, Je m'appelle Morgana
Hi,
I would like to introduce myself. My name is Morgana and I’ll be posting on this blog from now on. I have a very interesting background because my Bachelor degree is in Philosophy but I have taken every neuroscience class available to me at my alma mater, Centenary (the only college in Louisiana with a neuroscience program, which is why I originally chose it). Because of this eclectic course load I have a unique perspective and unique qualifications for this job. The recent breakthroughs in neuroscience give us deeper and deeper insight into the physiological actions of the brain, and therefore the metaphysical mind. If we can figure out what makes us tick as humans through studies of the brain (our own personal computer system that runs our body) we should be able to figure out if god is a figment of our minds or perhaps something more. Philosophy gives us the ability to reason through arguments for and against the existence of god, and really any argument at all. Please continue to read and stay abreast of our progress as new things are discovered in neuroscience, making things clearer and more interesting in philosophy all the time!
Sunday, August 21, 2011
The Real Question
Note: The principle advocated in this post can apply to other topics as well. For example, if you think that God doesn't answer prayer, your question becomes "does a God who does not answer prayer exist?" Character qualities that one thinks that God posseses are not proofs that he doesn't exist, they just change the question you are asking!
Monday, August 1, 2011
The Death of Judas
- Judas regrets his actions and attempts to return the silver coins
- The chief priests and elders reject him
- Judas throws the silver coins into the temple
- Judas hangs himself
- The chief priests use the silver to buy the Potter’s Field as a burial place for foreigners.
- This occurrence was a fulfillment of something Jeremiah said
- Judas acquired a field with the reward of his unjust deed
- Falling headfirst, he burst open in the middle and all his intestines gushed out
- Did Judas keep the silver?
- Who bought the field?
- Who used the silver (to acquire something)?
- How did Judas die?
- When people hang themselves, do they jump head first or feet first?
- If someone was to hang themselves and the rope broke, would they rotate 180 degrees and fall head first?
Keep in mind that he wrote this after he wrote Mere Christianity (so it wasn’t something he said before he was converted).