Animal sleep is presented in various patterns like hibernation, nocturnal activity, and even napping! For example, penguins rarely sleep in case of abrupt attacks of predators. They sleep in standing positions for only a few minutes to provide security. In some occasions, penguins take naps in the ocean after a full meal. In contrast, brown bats spend generally nineteen hours just on sleeping hanging upside down. As these examples demonstrate, the state of sleeping in animals is confirmed based on scientific research. The evidence of animal sleep is obvious, mainly characterized by temporary unconsciousness, non-responsiveness to external stimuli, and passivity in movement. Although animal sleeping is corroborated by these common symptoms, animal dreaming is a controversial issue in the scientific field. Many scholars are opposed to the state of animal dreaming because verbal description lacks and data is limited to those collected through visual means. However,animal dreaming should not be disregarded on account of three scientific elements; particular brain activity, specific stages of sleep, and involuntary body movements.
First of all, the brain activity of sleeping animals is considerably related to humanity. The first similarity is the brain wave patterns during animal sleep. Human sleeping is usually accompanied by weak Alpha waves and strong Theta waves. The electrical activity of the animal brain was measured by an electroencephalogram (EEG) in the early research conducted by Dr. William C. Dement, the founder of the Sleep Research Center. Accordingly, Alpha waves disappeared and Theta waves appeared strongly making a match with human brain waves. Another explanation is the distinctive pattern of neurons which is created ...
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...f animal sleep is verified by scientific methods and the comparison of humanity and animals. More academic study of animal sleeping patterns and habits accompanies the potential to benefit brain disorders in humans. Currently, the study of animal dreaming and memory is in progress to reveal the cause of memory impairment. Matthew Wilson, professor of brain sciences at MIT, commented “It could be a valuable tool in treating memory disorders such as amnesia or Alzheimer’s disease, or it may help devise ways for people to learn and memorize more effectively.” The mass potential of animal dreaming research should not be interfered by discredit of the academia. To put it briefly, since animal dreaming is scientifically supported by certain brain activity, stage of REM sleep and non-REM sleep, and subconscious movement, constant attention and research should be continued.
Political and Social Messages of Animal Dreams and The Bean Trees Perhaps The Poisonwood Bible is Barbara Kingsolver's best work? It was while reading this book (which centers around The Congo and what the western world has done to this country) that I began to make the connection that all of Kingsolver's books contain a political and social message. She uses her stance as an author to illuminate her readers to situations and issues that she feels are important. Kingsolver's voice can be heard in Animal Dreams when the main character, Codi talks about what happened to her sister, Hallie in Nicaragua, and how unaware Americans were to what was happening in that country.
Sleep deprivation is a commonplace occurrence in modern culture. Every day there seems to be twice as much work and half as much time to complete it in. This results in either extended periods of wakefulness or a decrease in sleep over an extended period of time. While some people may like to believe that they can train their bodies to not require as much sleep as they once did this belief is false (1). Sleep is needed to regenerate certain parts of the body, especially the brain, so that it may continue to function optimally. After periods of extended wakefulness or reduced sleep neurons may begin to malfunction, visibly effecting a person's behavior. Some organs, such as muscles, are able to regenerate even when a person is not sleeping so long as they are resting. This could involve lying awake but relaxed within a quite environment. Even though cognitive functions might not seem necessary in this scenario the brain, especially the cerebral cortex, is not able to rest but rather remains semi-alert in a state of "quiet readiness" (2). Certain stages of sleep are needed for the regeneration of neurons within the cerebral cortex while other stages of sleep seem to be used for forming new memories and generating new synaptic connections. The effects of sleep deprivation on behavior have been tested with relation to the presence of activity in different sections of the cerebral cortex.
Another reason for the difficulty of sleep research is the pace of discovery. The field moves too fast for its own good. As a result, no comprehensive beginner’s text is available in the field of circadian rhythms. By the time...
Rasch, B., & Born, J. (2008). Reactivation and consolidation of memory during sleep. Current Directions in Psychological Science, 17, 188-192. doi: 10.1111/j.14678721.2008.00572.x
We live our entire life in two states, sleep and awake1. These two states are characterized by two distinct behaviors. For instance, the brain demonstrates a well-defined activity during non-REM sleep (nREM) that is different when we are awake. In the study of sleep by Huber et. al., the authors stated that sleep is in fact a global state2. It is unclear whether this statement means that sleep is a state of global behavioural inactivity or the state of the global nervous system. The notion that sleep is a global state of the nervous system served as basis for sleep researchers to search for a sleep switch. The discovery of the sleep switch, in return, provided evidence and enhanced the notion that sleep is a global state of the nervous system. The switch hypothesis developed from the fact that sleep can be initiated without fatigue and it is reversible1. It was hypothesized that there is something in the brain that has the ability to control the whole brain and initiate sleep. Studies have found a good candidate that demonstrated this ability3. They found a group of neurons in the Ventrolateral Preoptic (VLPO) nucleus. It was a good candidate because it was active during sleep, has neuronal output that can influence the wakefulness pathway, and lesion in the area followed reduce sleep3. The idea that there is something that can control the whole brain and result sleep state supports the idea that sleep is a global state of the nervous system.
studying the subject, the origins in the brain responsible for sleep are still not fully understood and thus, facilitate continual probes
In normal sleeping patterns a person usually passes through five phases of sleep, the fifth being REM. The sleeping human passes cyclically through these five phases throughout a night's rest. These phases can be defined in electrical activity of the brain; much like the activity of the heart is often defined. The technique of measuring the electrical activity of the brain is call Electro-encephalogram, or EEG. When the electrical events of a person's brain are graphed on a electrical magnitude versus time axis the graph of a person who is in different stages of being asleep or awake appear to have different levels of electrical activity occurring in the brain. (See (14))
Animal spirits are a product of irrational behavior and are a major driving force in the economy. Intuitive then is the notion that animal spirits are also heavily involved in the process of economic boom and bust cycles. This much is straightforward and in reality seems to be the case. Animal spirits, which were initially defined by John Maynard Keynes, characterizes a variety of exogenous variables that could not be accounted for in the mainstream rational economic theories of the time. This definition was later reclassified by Akerlof and Shiller in their title book and provided some of the mechanics behind seemingly irrational behaviors. Akerlof and Shiller described and highlighted five specific features of animal spirits that affect the
Exploringn a Neurobiological Theory of Dreaming Neurobiological theory of dreaming focuses on the brain and the nervous system. The activation synthesis theory which is one of the theories put forward by Hobson and Mcarley (1998) said sleep is controlled by mechanism in the brainstem. When activated this inhibits activity in the skeletal muscles and increases activity in the forebrain. This theory seems dreaming as an automatic part of the sleep process that may have no significance beyond the need to organize the material into coherent forms. Hobson points out that injection of a drug that increases the action of acetylcholine both increases REM sleep and dreaming.
Many studies of the role of sleep are partial or total sleep deprivation studies which support Oswold’s restoration theory. One of these supporting studies was Dement’s. He deprived participants of REM sleep and consequently found that they increased their number of attempted REM stages from 12 to 26 over 4-7 nights. During their first uninterrupted night, participants increased their REM sleep by 10% which is known as REM rebound. This suggests the importance of REM and the possibility that the purpose of sleep is to get into REM sleep. The participants reported anxiety, irritability and difficulty concentrating which shows that REM sleep is needed to avoid these affects and enable brain recovery which corresponds with Oswold’s theory. Even so, Dement’s study has low ecological validity, it has low population validity because there were only 8 participants and they were a self-selected sample. Participants would probably have shown demand characteristics because the experiment took place in a lab. It also has low mundane realism because people would not usually sleep in a lab and be interrupted repeatedly.
Sleeping is something that is an essential part of human nature and is a must in order for one to be a functional human being. Sleep is an idea that is accompanied by many wives’ tales, including the idea that one needs seven to eight hours of sleep each night and alcohol helps one fall asleep and sleep more soundly. One myth about sleep is that during sleep, one is in a state of nothingness. In truth, however, it has been discovered that during sleep the brain is active, variations in heartbeat and breathing occur, and the eyes and ears are active throughout the time of sleep. These activities during a person’s sleep are important because they help that person be more aware, awake, and alert during sleep.
Kales, A. (1972). The evaluation and treatment of sleep disorders : Pharmacological and psychological studies. In M. Chase (ed.)The Sleeping Brain. Los Angeles : Brain Information Service.
In this Forum on Sleep and Dreams, we will see how the diversity of academic disciplines can help to answer important questions about sleep and dreaming—questions that may touch the basis of human intellect. The Forum is fortunate in...
Rasch, Björn, and Jan Born. "About Sleep 's Role in Memory." Physiological Reviews. American Physiological Society, n.d. Web. 06 May 2016.
Animals can be perceived in many different ways. While some humans consider animals to be mindless machines programmed with instinct, others view them as spiritual creatures capable of coherent thought and emotions. I feel that animals are somewhere in the middle. Although they rely heavily on instinct, the ability to feel emotions shows that their mental capacity is not far from that of a human.