30 Matching Annotations
  1. Mar 2025
    1. paralysis

      How do some people gain feeling and motor function after becoming paralyzed, I wonder what the science behind that is.

    2. Cerebrum

      Cerebrum- Internal functions that our brain does, along with our consciousness. Maybe like remembering a recipie in your head!

    1. or to remove the cyst is necessary

      I wonder what the symptoms of this defect is, to me it seems like it could be similar symptoms to someone with a herniated disc... Radiating or shocking pain down the nerve that has been affected.

    2. Stiles & Jernigan

      By age 6, 90% of our brains obtian adult volume!

    3. metencephalon and myelencephalon.

      Does all of this take place in the same spot? Or all around?

    1. gray matter and white matter

      What is the actual significance of having gray matter or white matter though?

    2. neurogenesis.

      Does this tie into the concept of Plasticity as well?

    3. motor neurons

      Are motor neurons only a part of the multipolar neurons? Considering most are probably motor.

    4. Multipolar neurons

      I have heard of Bipolar and unipolar neurons but never the multipolar ones, Suprising because The Multipolar are the most common apparently!

    5. they have many extensions of their cell membranes

      What are the benefits and or downfalls to having multiple layers of membranes?

    6. Their function is to transmit nerve impulses. They are the only

      I wonder if neurons transfer these impulses in all directions, are are there some directions that they cant reach?

    7. In the example above, your eyes detected the skateboarder, the information traveled to your brain, and your brain instructed your body to act to avoid a collision.

      I am curious as to which part of the nervous system is involved in this reaction... the peripheral or the central? Or both?

  2. Feb 2025
    1. In typical human families, children’s biological parents raise them, so it is very difficult to know whether children act like their parents due to genetic (nature) or environmental (nurture) reasons. Nevertheless, despite our restrictions on setting up human-based experiments, we do see real-world examples of nature-nurture at work in the human sphere—though they only provide partial answers to our many questions.

      I strongly believe that a childs behavior and ultimate outcome is impacted by their parents and how they were raised. There is always going to be a certain degree of kids that disagree and dont fall into their parents expectations however, it is still controlled to an extent.

    2. It seems that most people, even those without much knowledge of science or philosophy, have opinions about the answers to these questions that come simply from observing the world we live in.

      I think that a lot of people, eveen if they dont have backgrounf in philosophy, can have valid beliefs or views on the world we live in.

    1. But if these bright feathers only lower peacocks’ chances at survival, why do they have them?

      This doesnt make as much sense to me because not everything that animals is benefitial to them!

    2. changes in the way we think in order to improve our survival.

      is this just influenced by the way we think? Cant it also be a cause of the way others think too?

    1. Split-brain research refers to the study of those who received this treatment and the knowledge resulting from this work (Rosen, 2018). Under what circumstances would such a seemingly radical procedure be used - and what are its effects?

      I watched a Split brain documentary on youtube and it was so interesting to see how our brains can control specific parts of our bodies!

    1. From the scalp, the electrodes measure the electrical activity that is naturally occurring within the brain. They do not introduce any new electrical activity.

      How long does this procedure typically take, does the patient feel anything?

    1. Figure 2.2.22.2.2\PageIndex{2} shows a CT scanner with a platform for the subject to lie on. A computer combines these images into a two-dimensional view of the scanned area, or “slice.” Figure 2.2.32.2.3\PageIndex{3} shows a series of slices of the brain for one subject.

      I find it very difficult to distinguish the difference between a ct scan and an MRI, not only do the scans look similar to me, yet the machines do too!

    2. Thus, X-rays are best used to visualize hard body structures su

      If we are able to see the same information shown on an x-ray through an mri, why do we still use x-rays if we have more detailed and reliable techniques?

    1. narrow that down to a specific gyrus (ridge) or sulcus (groove) of the cerebral cortex?

      If we could narrow it down to the specific gyrus, how does that help us exactly? I dont understand the significance, function, or meaning of the gyrus!

    2. without having to go inside. A series of MRI images can be used to create a picture of the brain.

      What are the cases that would require a more invasive approach into the brain?

    1. By mid-November he was already walking around the city.

      Is it just a coincidence that his body was able to bounce back so quickly, or was it his lifestyle and is there a reason why his body reacted so well? And why some individuals react in a better way or worse?

    1. Transcranial magnetic stimulation (TMS) is a procedure in which magnetic pulses are applied to the brain of a living person with the goal of temporarily and safely deactivating a small brain region. The p

      TMS is a simulation to determine issues resulting in speecific parts of the brain, and finding which ones.

    2. Wernicke's area, was damaged, the individual could not comprehend other's speech or use words correctly

      Does this directly effect the ability to produce words correctly, or is our ability to speak just effected as a result of our hindered hearing?

    3. In 1861, Paul Broca (1824-1880) presented a case where a young man had sustained damage to the left frontal lobe and as a result was unable to produce spoken speech. However, the patient was able to comprehend speech and had average intelligence.

      Is this known as plasticity, I remember that being what this is known as but im an not exactly sure!

    1. This implies that humans do not have free will. Instead human behavior is caused by events external to us such as our upbringing, our social and cultural environment, by our brain structure and functioning, and by our genes and our evolution as a s

      I Istrongly disagree with thiis, I believe that to an extent, the past and our environemt can lead us into a certain direction and leave some doors closed while keeping other open however, there is always going to be multiple doors and we are in control of our every decision. One mistake can ruin our lives, and vise versa.

    2. A functional MRI, for example, provides information regarding brain activity while an MRI provides only information about structure.

      Cant you tell information about the brain just by looking at the structure in an mri? Isnt that the wholw point?