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Anterograde amnesia example
Anterograde amnesia example
Anterograde amnesia example
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1. Describe anterograde and retrograde amnesia, as well as Alzheimer’s disease. Provide a detailed response.
Anterograde and Retrograde amnesia, are the two main types of amnesia. Although they are opposite of each other, they are as equally devastating the individuals affected by them. The first of the two I’ll be talking about is anterograde amnesia, anterograde meaning after, is the form of amnesia where you can't form new memories or in proper terms you are unable to use or have lost use of your hippocampus the organ in your brain that is responsible for converting short-term memory to long-term memory. There are many causes for this type of amnesia, generally it is caused by some sort of injury to the brain like, head trauma, illnesses, alcohol intoxication, or even can be due to surgery complications. However, people with anterograde are able to maintain their memories from before the trauma causing the
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Describe the case of Henry Molaison, also known as H.M. What did H.M.’s case tell psychologists about the role of hippocampus in memory? Identify the role of two of these structures in memory: the cerebellum, the amygdala, and the prefrontal cortex.
At the age of ten Henry Molaison started suffering from epilepsy after an accident on his bicycle when he was seven. He’s condition got worst with age and he was unresponsive to his Antseizure medications. Debilitated by his conditions he was despite for a solution at in 1953, at 27 he agreed to an experimental surgery. That would remove parts of his brain, his temporal lobes which include his hippocampus. Amazingly enough the surgery did work his epilepsy was repressed! However, the surgery cause him to suffer from anterograde amnesia as a result of the remover of his hippocampus. He also suffered from a mild case of retrograde amnesia as a result of the surgery. Despite all the complications H.M. manage to perform normally on a multitude of different tests and could still recall distant
In Sam Kean’s The Tale of Dueling Neurosurgeons, he uses historical events to explore the brain’s many components and qualities. Exposing that several scientific advancements of the human brain are a result of some gruesome incidents and tragic stories. The title is in reference to two brain doctors from 16th century Europe, Ambroise Paré and Andreas Vesalius who were called upon after King Henri II was pierced through the eye and skull during a joust in 1559. The story is written with Kean being the narrator of the cases from the past he then follows the story with current information of the related brain structure and its functioning. The cases include strokes, seizures, infectious diseases, and traumatic accidents followed by how the victim
Hippocampus is a small, curved region, which exists in both hemispheres of the brain and plays a vital role in emotions, learning and acquisition of new information. It also contributes majorly to long term memory, which is permanent information stored in the brain. Although long term memory is the last information that can be forgotten, its impairment has become very common nowadays. The dysfunction is exemplified by many neurological disorders such as amnesia. There are two types of amnesia, anterograde and retrograde. Anterograde amnesia is inability in forming new information, while retrograde refers to the loss of the past memory. As suggested by Cipolotti and Bird (2006), hippocampus’s lesions are responsible for both types of amnesia. According to multiple trace theory, the author suggests that hippocampal region plays a major role in effective retrieving of episodic memory (Cipolotti and Bird, 2006). For example, patients with hippocampal damage show extensively ungraded retrograde amnesia (Cipolotti and Bird, 2006). They have a difficult time in retrieving information from their non-personal episodic events and autobiographical memory. However, this theory conflicts with standard model of consolidation. The difference between these theories suggests that researchers need to do more work to solve this controversy. Besides retrieving information, hippocampus is also important in obtaining new semantic information, as well as familiarity and recollection (Cipolotti and Bird, 2006). For instance, hippocampal amnesic patient V.C shows in ability to acquire new semantic knowledge such as vocabularies and factual concepts (Cipolotti and Bird, 2006). He is also unable to recognize and recall even...
On February 14, 2008, Steven Kazmierczak took less than two minutes to open fire on a lecture hall at Northern Illinois University, killing five, injuring eighteen, and finally taking his own life. Although he had a history of mental illness, Kazmierczak had been given the Dean’s Award, the highest honor an undergraduate of NIU can receive, attended graduate school at the University of Illinois at Urbana-Champaign, and sought counseling for his mental illness. From the outside, it appeared that he had taken control of his life, described as “being so nice he must be a mass murderer” by faculty members at NIU. To say the least, his killing spree and subsequent suicide came as a shock to those who knew him, and it is difficult
Amici curiae is a social psychologist and legal scholar who studies the effects of the Recovered Memory Syndrome on individuals’ behaviors and judicial practices. Amici has conducted research and published several peer-reviewed articles explaining the role of hypnosis in uncovering repressed memories and related traumas that come along with it. This brief intends to provide the Court with relevant and current literature explaining the recovered memory phenomenon and its relationship with psychotherapeutic techniques where recovery of memories often occurs. Research presented by amici demonstrates that cases of sexual abuse, real or imagined, must be given careful consideration as victims undergo significant emotional
One cause is benzodiazepine drugs, which are known to have powerful amnesic affects. This has also been recorded in non-benzodiazepine sedatives which act on the same set of receptors. Another cause is a traumatic brain injury in which damage is usually done to the hippocampus or surrounding cortices. It can also be caused by shock from psychological trauma or an emotional disorder. Illness, though much rarer, can also cause anterograde amnesia such as encephalitis, which is the inflammation of brain tissues do to some foreign pathogen. Lucy is diagnosed as having Goldfield’s Syndrome, which is the exact same thing as anterograde amnesia. She shows signs of short-term memory loss, her brain stores the new memories of the day has she lived however, after falling asleep she is unable to access these
Therefore, they summarize that the reason why Clive suffers in the Amnesia is caused by the hippocampus is not affected. The Hippocampus is a structure that is located inside the temporal lobe, and that is a part of the limbic system. The function of the Hippocampus is similar to a post office used for encoding, storage and recalling memories, all presenting information would first remain, analysed and encoded in the Hippocampus then transmit them to different areas of the brain. In other words, Clive is unable to encode memory and hold information which is currently aware, and it is difficult to form new long-term memory such as explicit and semantic memory. Clive Wearing, now 78 years old, still cannot recover from the anterograde amnesia, he becomes a man who has the shortest memory in the world.
While the average life expectancy of the world’s population has increased, the number of detected dementia cases has commensurately risen to astonishing levels. Along with improved discovery of this disorder, new causes and treatments have been found, from which many innovative techniques have been developed towards the prevention of future incidences and reduction of the effects of this condition; however, the quest for these solutions have raised more questions than it has answered. Why do some develop this disorder, while others do not? Can early detection be achieved to reverse the processes or limit its effects? Further specifics on these topics have been categorized into three main sections, which include:
Anterograde Amnesia (AA) is commonly known as short term memory loss. It is the inability to form any new memories after a neurological or psychological trauma in the brain. “Current definitions of anterograde amnesia emphasize the presence of severe and permanent deficits for the recall of recent events (typically with poor recognition) that contrast with intact short-term memory, IQ, semantic memory, skill learning, simple classical conditioning, perceptual learning, and priming” (Aggleton, 2008, p. 1442). Also, according to Aggleton, AA causes the inability to recall autobiographical events (episodic memory). Research shows that damage to the diencephalon or frontal lobe can cause AA. Damage to the diencephalon impairs memory performance because it encodes new experiences for future recall and damage to the frontal lobe of the brain weaken memory performance because the it is involved in regulates access explicit memory (Mendev 2007). Duff, Wszalek, Tranel & Cohen (2008) stated...
Amnesia, a severe long-term memory loss disease, is caused by damaged brain tissue. There are two different types of amnesia. Retrograde amnesia is also known as backward moving. This is when you have a hard time remembering the past, especially episodic memories. This occurs because of memory consolidation. Memory consolidation is the process of a new memory setting until it becomes permanently in the brain. If this process is disrupted, the memory may be lost (Hockenberry and Hockenberry page 265). Anterograde amnesia is also known as forward moving. This is when you are unable to form new
I will first be discussing declarative memory, which is characterized by knowledge of facts and events. Much of our current knowledge of the structure and substrates of declarative memory derives from studies of amnesiac patients, from which we can derive two primary findings: declarative memory is separate from other forms of memory such as working and non-declarative memory, and function of declarative memory is dependent on structures
While there are several classified types of amnesia I choose to focus on retrograde and anterograde amnesia, because these are most common. Retrograde amnesia refers to the inability to remember events before the brain damage occurs, and anterograde is the inability to remember events after the brain damage. (2). Okay, so now I know the difference. One you cannot remember your past. The other you cannot remember your present. Now, the question to be posed is how exactly do these two degrees differ in relation to the way the brain operates when confronted with the trauma?
Have you ever been an eyewitness at the scene of a crime? If you were, do you think that you would be able to accurately describe, in precise detail, everything that happened and remember distinct features of the suspect? Many people believe that yes they would be able to remember anything from the events that would happen and the different features of the suspect. Some people, in fact, are so sure of themselves after witnessing an event such as this that they are able to testify that what they think they saw was indeed what they saw. However, using an eyewitness as a source of evidence can be risky and is rarely 100% accurate. This can be proven by the theory of the possibility of false memory formation and the question of whether or not a memory can lie.
Kowalski, M.(1998, December). Applying the "two schools of thought" doctrine to the repressed memory controversy. The Journal of Legal Medicine. Retrieved September 14, 2000 from Lexis-Nexis database (Academic Universe) on the World Wide Web: http://www.lexis-nexis.com/universe
amygdala and the hippocampus. Those parts of the brain link fear and memory together. With
Hippocampus plays an important job in the formation of new memories about experienced events such as the episodic or the autobiographical memory. It is also a part of larger medial temporal lobe memory system responsible for general declarative memory. General declarative memory is a type of memories that can be explicitly verbalized. If damage to hippocampus occurs only in one hemisphere, our brain can still retain near-normal memory functioning. But even so the hippocampus is damage; some types of memory such as abilities to learn new skills will not be affected. The reason is because, some abilities depends on different types of memory and different regions of the brain such as procedural memory. Hippocampus also plays role in spatial memory and navigation. Many hippocampal neurons have “place fields” and the discovery of place cells in 1970’s led to the theory that hippocampus might act as cognitive