4,306 reputation
1226
bio website keegan.aws.af.cm/index.html
location Ontario
age
visits member for 2 years, 6 months
seen 8 hours ago

BS Physics (received)

MS Computational Neuroscience (received)

PhD Theoretical Neuroscience (attending/pursuing)

Published Paper: Transient spatiotemporal chaos in the Morris-Lecar neuronal network

Psychedelic improv band: Luop Garou


May
6
comment is the mind independent of the brain?
I voted to leave this question open since it's such a common question from the public, but as the close votes indicate, you might consider doing some initial research and try formulating more specific questions based on that and let this one go.
May
1
comment Brain structures related to risk-taking behavior
Hi Ehsan. I'm withholding my vote to close this question to give you time to do some initial research and increase the quality and content of this question.
Apr
30
comment Should questions in psychology always be objective questions?
[Phenomenology](en.wikipedia.org/wiki/Phenomenology_(philosophy)) is a subject in philosophy that studies just that, but it's considered a philosophical aspect, not so much a scientific aspect.
Apr
29
comment Does the Minnesota 12 steps model really produce an effective change in the treatment of drugs addictions?
Would you mind providing links and/or background information to clarify your question?
Apr
25
comment What exactly is the neurobiological mechanism behind the functioning of the human muscle?
More precisely, it's how much effort you put into a particular load. Precision manipulation requires a lot of activating and inactivating as you go back and forth writing, sharpening a spear, or tying a knot. So different muscles will engage at different times, so that's heavily recruitment dependent by its very nature. Lifting a heavy rock, you'll start out recruiting muscles, but once they've mostly been recruited, all you can do is increase firing rate.
Apr
17
comment Do you need sleep every night?
The "cleaning" hypothesis is just one, and it's a rather new one. The debate about the function of sleep has been going on for a long time, and the community has not settled on maintenance cleaning being the answer. There are also rest hypotheses (that neural cells need rest, but can't rest individually because they're coupled to other neurons, so they have to rest in large groups, requiring sleep) and there's also a hypothesis that sleep serves a memory and learning function (consolidation processes between hippocampus and cortex)
Apr
16
comment Is the Orch-OR Penrose-Hameroff model for consciousness sensible?
Short answer is no, I presented some of the evidence in my answer to a related question.
Apr
12
comment How would self awareness be limited without languages
Yes, I apologize. Pay walls for such information, often paid for by public taxes, are an annoying aspect of modern scientific culture.
Apr
12
comment How would self awareness be limited without languages
I believe the Sapir-Whorf hypothesis (known more generally as linguistic relativity) touches on this. You might also be interested in and outdated theory called Bicameralism. Probably wrong, but interesting and possibly still somehow relevant.
Apr
12
comment How would self awareness be limited without languages
Hopefully I've satisfied your request in my answer below.
Apr
12
comment How would self awareness be limited without languages
Well, depending on what you accept as evidence, the infants of great apes are able to recognize themselves in a mirror before human infants can, developmentally, and it probably has more to do with self-monitoring circuits developing than language.
Apr
12
comment How would self awareness be limited without languages
do you literally mean self-awareness or do you mean consciousness in general?
Apr
9
comment Why do people get “too old to learn”?
Who do you think it is underestimated by? Society in general or researchers? I would argue that most people studying behavior account for it. The general method for teasing environmental from genetic traits is monozygotic twin studies. Here is one such study, Here is another, and Here is a review on the "use it or lose it" perspective.
Apr
8
comment Why do people get “too old to learn”?
I'm sure environment plays a significant role, but the biological role is well documented.
Apr
4
comment How are personality traits “encoded” in the brain?
I've updated the answer with more detail as to how the authors are explaining the how.
Apr
4
comment How are personality traits “encoded” in the brain?
How is still a matter of hypotheses. The authors introduce hypotheses in the beginning, but also reference literature (such as Depue & Collins). Encoded is probably not the right word though; "encoded" is used to describe lower processes like sensory processing well (rate coding, for example) but personality is more of an emergent property.
Mar
30
comment Super polymath feasibility: Is it possible to have the highest intellectual ability in every area?
I agree with this answer. With each additional measured trait, the probability of them simultaneously being in the 90th+ percentile for a single person approaches 0. So possible? Sure. Probable? Not very.
Mar
7
comment What subjects to study in order to prepare for a research career in theoretical neuroscience?
My undergraduate was in physics, so I took all the standard physics courses. During my Master's degree, I took a lot of classic neuroscience courses and a Nonlinear Dynamics course through the physics department. For my PhD, I am taking Mathematical Cellular Biology, Perturbation Theory, Asymptotic Analysis, and Numerical Methods in Partial Differential Equations. I've also taken a neuroscience course where we discuss, report, and present on the current literature in neuroscience.
Feb
12
comment When was it recognized that thinking occurs in the brain and not in the heart?
Yes, the misconception existed. Egyptians demonstrate ignorance of the brain. It was one of the organs they didn't preserve; they didn't think it would be useful in the afterlife. The reason the heart got so much attention (and blood) is that you can see veins going through the whole body with your eyes and you can see they all connect to the heart. You can't see nerves going through the whole body so easily.
Jan
24
comment Is there another example of a strongly emergent phenomenon besides the mind?
I disagree that mind has to be strongly emergent. It can just as easily be weakly emergent. I would, therefore, move to close your question as a loaded one. See if you can ask it from a more neutral position.