Lizzzy030

Lucid dreams are often defined as the ones you know you are having in real time. These are the dreams where you seem to be conscious. You are aware of the story line, and you are often a central character in the story. Sometimes, you may even consciously manipulate the dream content toward a more acceptable outcome. Scientists have recorded physiological changes during sleep, and there are multiple episodes during sleep, especially early in the morning, that display brain waves similar to those when you are awake accompanied by rapid, jerky eye moves (REM). When people were awakened every time these signs appeared, they invariably said a dream was interrupted. Source, with permission: Carroll Jones III, Nathaniel Graphics, 2013 Incidentally, I have studied this in animals. It appears that REM sleep is an innate property of the brains of mammals. I discovered REM sleep in ruminants, which at the time were assumed to rest without true sleep. I also discovered a rudimentary form of REM sl...

I get a lot of questions in Quora about neuroscience, because neuroscience is what I do. A recent question prompts this post. The question was: " Does all thinking originate in subconscious thinking?" This is a provocative question. It gets to the heart of the matter: What is the default mode of brain operation, conscious or subconscious? Semantic Confusion Much of the confusion about consciousness arises because words fail us. We have poor definitions for the usual words: conscious, unconscious, subconscious, non-conscious. Before I attempt an answer to my Quora question, let me establish some background about terminology. First, the currency of thought is patterns of nerve impulse activity constrained by flowing in and through defined circuits of linked neurons. The impulse thought patterns that occur in primitive circuitry, like spinal   segments and neuroendocrine circuits are considered nonconscious thoughts because we can never be consciously aware of what those circuit...

Jazz is complex music that even some professional musicians have difficulty playing. Yet somehow, jazz-band teachers create new jazz musicians out of youngsters who just a few years earlier knew nothing about music. What magic must they be using? In the spring of every year in Texas, Katy High School near Houston hosts a jazz festival that showcases junior- and high-school stage bands from around the state. I have attended several times and never failed to be astonished at the musicianship of these youngsters. Each year, there is one or more middle-school band. Even the professional musicians who critique each band’s performance are amazed that these 7 th  and 8 th  graders “play like adults!” I never cease to be astonished at how accomplished these students are. I ask myself, “How did those kids learn such complex music?" The music played by the school stage bands is mostly the big-band music of Goodman, Basie, Kenton, Ellington, and ot...

One common definition of "free will" is that a person can decide or choose among multiple alternatives without being forced by physical laws, luck, fate, or divine will. Most of us feel we are in charge of our choices when no outside force requires us to make a particular choice. But it is fashionable these days for scholars to insist that free will is an illusion, a trick the brain plays on us. I will spare you the philosophical knots of specious assumptions and convoluted logic that that scholars tie themselves into. Why do I bring this up? What has the "free will" issue have to do with learning and memory? Everything. Rather than memory dictating our choices, either we have chosen what to learn and remember or we can veto or amend the influence in our decision-making. Human brains make choices consciously and unconsciously by real-time evaluation of alternatives in terms of previous learning from other situations and their anticipated usefulness. This learning oc...

Have you noticed that so many elderly people seem frail, walk slowly, and seem to lack energy? If this applies to you, noticing it is unavoidable. These problems are preventable. For 25 years, I jogged at least a mile and a half three times a week. This was crucial for helping me stop smoking. I don’t know why, except that I could not smoke and jog at the same time. Also, the 15-30 minute recovery time reminded me just how bad the smoking had been for my health. Why did I quit jogging? The jogging messed up my joints. So, I took up swimming, but since I sink like a lead mannequin, that is just too much work. So now, I joined a gym, where I use the elliptical, treadmill, and muscle-building machines. This environment helps because I have companions in my discomfort, and occasionally I get the satisfaction of comparing myself to the few “90-pound weaklings” that show up. We have known for many years that exercise is good for you, especially as you get older. Known benefits of exercise in...

“Too much of a good thing” and “it’s all relative” now take on new meaning. A new research report of seven studies suggests an explanation for the paradox that humans misjudge the extent of a changing situation. This report, published in the June 29 th issue of the premier journal, Science , demonstrated that people often respond to diminished prevalence of a stimulus by expanding their perception of its prevalence. For example, when looking at a matrix panel of blue and purple dots, if the experimenter reduces the percentage of blue dots, the subjects began to see purple dots as blue. Or when shown panels of threatening faces mixed with neutral faces in which the percentage of angry faces became rarer, they began to see neutral faces as threatening. Or when unethical requests of the subjects were made rarer, subjects began to regard innocuous requests as unethical. In other words, reduced prevalence of a certain stimulus created a bias for finding more of that stimulus than actually ...

In an earlier post, “Where Neuroscience Stands in Understanding Consciousness,” I presented a summary of the progress occurring in neuroscientific understanding of consciousness ( https://www.psychologytoday.com/us/blog/memory-medic/201804/where-neuroscience-stands-in-understanding-consciousness ). Now a recent report in the May issue of Science adds to a growing understanding of how the brain generates conscious recognition. The study examined neural impulse discharge responses of monkey brain to visual stimuli. Electrodes were implanted in the four visual cortex areas that are sequentially activated by visual stimuli. The stimulus was a circular spot of varying contrast in the lower left area of the visual field. Monkeys were cued when a stimulus was delivered, though whether they saw it or not varied with the spot’s contrast against the visual background. Monkeys were trained to report when they knew they saw the spot by shifting   their gaze from a central fixation point to th...

The Joys of Consciousness You take time to be alone, valuing your personal time. You meditate. You feel light and buoyant. You feel spiritually uplifted. You find a solution to a problem. You have a fresh new idea. You notice something beautiful. You walk outside in nature and feel refreshed. You engage in physical activity that's invigorating. You are playful and take time to play. There is a moment of pure joy. You smile in appreciation. You respect someone else's boundaries without being asked. You lift someone else's spirits. You make another person laugh. You give someone a helping hand. You do something kind. You forgive a slight. You offer yourself in service to someone in need. You feel a close bond with another person. You cherish another person. ― from The Healing Self by Deepak Chopra and Rudolph E. Tanzi        re-sequenced to show the joys of nurturing oneself and then nurturing others.

Common wisdom asserts that your IQ is fixed. Of course, the various “multiple intelligences” change with personal life experiences and growth, but we usually consider the standard IQ score to be inherent and unchangeable. But even the standard IQ measure changes during different life stages. Clearly, the IQ of young children changes as they mature. Several studies even show that working-memory training can raise the IQ of elementary-school children. More than one analyst claims that a rigorous PhD program can raise IQ in adults. Most obvious is the decline of IQ in those elderly who do not age well because of disease. A neglected segment along the age spectrum is the teenage years. Now, evidence indicates that this age group experiences IQ changes ranging from a decline to an increase. A study of this issue shows that both verbal and non-verbal IQ scores in teenagers relate closely to the developmental changes that occur in brain structure during the teenage years. Longitudinal brain-i...

The hardest memory task I ever had was to give an 18-minute TED talk from memory. I remember struggling with remembering my core ideas and their sequence. To solve this problem, my first task was to create some slides, which the TED format allows. The directors even show the slides on a monitor at the foot of the stage that only the speaker can see. Looking at each slide as it advanced helped provide cues in the proper order, but to be effective, slides must not have much text, and in no case can a given slide reveal on its own the associated content. I still had a memorization problem. Then I remembered the “production effect,” which basically is a way to strengthen memory by actually forcing the recall in the appropriate setting. In other words, I needed to rehearse by actually giving the speech, vocalizations, mannerisms, and all, in front of a mirror. The usual thing we think of about improving memory is the need for rehearsal, especially the kind of rehearsal where you force recal...

Got kids or grandkids in school? Are you in school or college? This blog is for you. I don’t have to tell you that school is stressful, what with hard courses, tough teachers, and high-stakes tests. The stress is understandable, but also counterproductive. Anxiety and other negative emotions interfere with learning, remembering, and test taking. So why don’t schools put more emphasis on helping students cope? Good teachers do help students cope by making their explanations as simple and clear as possible. But unless they lower their standards, which benefits nobody, school will still be stressful. Research has shown some things that teachers and students could do to reduce stress and improve academic performance. The most obvious is to understand the principles for efficient and effective learning, as I have tried to outline in my latest book, The Learning Skills Cycle. My two other books focus specifically on improving memorization skills. The American Psychological Associations 2013...

Many scientists, even physical scientists, assert that the Holy Grail of science is to understand human  consciousness. This human state is even hard to define, but is characterized by a state in which we know what we believe, know, and imagine, know what we decide and plan, and feel what we feel. That explains nothing. The problem in understanding is not only that the mechanisms must surely be complicated, but also that we don’t have good non-invasive experimental tools. There are only two useful tools, a metabolic proxy of neural electrical activity (functional fMRI) and scalp monitoring of electrical activity (the electroencephalogram {EEG), or its magnetic field counterpart. Among the problems with fMRI are that it is only an indirect measure of the actual signaling within the brain that generates thought and feeling and enables consciousness. Its time resolution is about one-second or more, whereas signaling in the brain occurs on a millisecond scale. Although the EEG monitors...