Explained Brain Regions In Deep Level And Deep Level Processing

Given the supposed role of the hippocampal system in encoding memory in long-term stores, researchers have eagerly tried to address this issue using PET and fMRI. One way in which they attempted to find evidence to support this involved face encoding and recognition in episodic memory. Episodic memory encoding is the process by which the experience of an event is

This supports the idea of an immediate memory store for items that are neither visual nor phonological and that draw on long-term memory to link the related words. It is used as both the Phonological Loop and the Visuo-Spatial Sketch Pad have specific roles and the Central Executive has very limited storage capacity so as a result there was no where to store both visual and acoustic information. The Episodic Buffer is an extra storage system that has in common with all working memory units, a limited capacity. It is handy and can integrate information from the Central Executive, The Phonological Loop, The Visuo-Spatial Sketch Pad and also information from the Long-Term Memory.

In the story,” The right side of Tim’s body was paralyzed and he was having great difficulty trying to talk”. Thus, it suggests that the left hemisphere of Tim’s brain suffered during his stroke, because language processing occur more in the left side if the brain. In general, the left hemisphere concentrates more on tasks that require verbal competence, such as speaking, reading, thinking, and reasoning.

Research has shown that there is “greater activation in the left inferior frontal and medial temporal lobes” (Stanford, 2006, p. 208) during the encoding of words which were later remembered as compared to those which were forgotten. The sensations perceived by sensory nerves are decoded in the hippocampus of the brain into a single experience (Mastin, 2010). The hippocampus analyses new information and compares and asssociates it with previously stored memory (Mastin, 2010). Human memory is associative in that new information can be remembered better if it can be associated to previously acquired, firmly consolidated information (Mastin, 2010). The various pieces of information are then stored in different parts of the brain (Mastin, 2010). Though the exact method by which this information is later identified and recalled has yet to be discovered, it is understood that ultra-short term sensory memory is converted into short term memory which can then later be consolidated into long term memory (Mastin, 2010).

All of these connections help to mediate the formation of memories. Interruption of such pathways has shown disruption of memory. These connections are necessary to integrate the multiple areas of the brain that are involved in the formation of emotion and memory.

The brain’s plasticity forms new connections – neurons- by learning new information and memorizing the information. A study conducted by Draganski in 2006, showed that the extensive learning of abstract information can also trigger some plastic changes within the brain. In the study, brain images of German medical students three months prior to their exam and after their exam were compared to brain images of students who were not studying at all before the exam. The students showed learning-induced changes in regions of the parietal cortex, and the posterior hippocampus. These regions of the brain are responsible for memeory retrieval and learning ( P. Michelon, “ Brain Plasticity…”).

There is extensive evidence to prove that the hippocampus plays a vital role in memory retrieval. However the extent to what type of memories the hippocampus supports and the process in which retrieval occurs is an ongoing debate. The two theories that are dominant in this debate are the Standard Model of Systems Consolidation (SMSC) and the Multiple Trace Theory (MTT). This paper will provide a review on the evidence supporting these two composing theories, the research providing evidence against the models, and finally their limitations. Additionally, a novel theory coined the Competitive Trace Theory (CTT) will be reviewed in order to conclude whether or not this model can provide a more holistic and accurate representation of the role of the hippocampus in memory retrieval while simultaneously providing explanations for flaws in previously proposed models.

The temporal lobe consists of the hippocampal region as well as the the entorhinal, perirhinal and parahippocampal cortices which are important for long-term memory. The hippocampal region consists of the hippocampus proper, the dentate gyrus and the subicular complex. The entorhinal cortex receives most of its input from the perirhinal and parahippocampal cortices as well as inputs from the olfactory bulb, orbital frontal cortex, insular cortex, cingulate cortex and superior temporal gyrus (Squire & Zola,

For the two research questions addressed during the second level of the study, Bennion et al. (2013) hypothesized that elevated cortisol at encoding would promote an interaction between attention and consolidation—i.e., that objects viewed for a shorter duration of time would be more likely to be forgotten, and objects viewed for a longer duration would be more likely to be remembered. They also hypothesized that this effect would be greater following the period of sleep, and that neural activity in memory retrieval would be centered on the limbic areas. This hypothesis also makes a reasonable prediction based on prior research suggesting that neural activity for mental retrieval centers on the limbic regions

judgements, language and control our social behaviour is processed in the frontal lobe. Due to the

Conversely, D.B had intact semantic memory, yet was unable to retrieve personally relevant past memories (Klein, Loftus & Kihlstrom, 2002). Patient D.B, however produced more Essentially, what has been identified through neuroimaging studies (reference) are four regions that comprise the brain’s default mode network and are responsible for prospection and autobiographical memory: the anteromedial prefrontal cortex (amPFC) , the medial temporal lobe (MTL), the posterior cingulate/precuneus (PCC/pCUN) and the lateral parietal and temporal lobes ( Schacter et al., 2012).. With these regions identified, theories of its instantiation came about, such as the constructive episodic simulation hypothesis (Schacter & Addis, 2007). It states that future

4. Based on the widely accepted idea that episodic memory loss is a common and primary component of Alzheimer’s disease, combining this study’s finding that there is deficient hippocampal activity in Alzheimer’s subjects, it is plausible to infer, although not fully confirmed, that this network plays a role in episodic memory processing. These findings implicate that measuring hippocampal network activity could be a marker by which the onset and progression of Alzheimer’s disease in a patient can be

Prior to the early 1970s the prominent idea of how memories were formed and retrieved revolved around the idea of processing memory into specific stores (Francis & Neath, 2014). These memory stores were identified as sensory memory, short-term memory, and long-term memory. In contrast to this idea, two researchers named Fergus Craik and Robert Lockhart proposed an idea linking the type of encoding to retrieval (Goldstein, 2015). This idea is known as the levels of processing theory. According to this theory, memory depends on the depth of processing that a given item is received by an individual (Goldstein, 2015). Craik and Lockhart stressed four points in supporting their theory. First, they argued that memory was the result of a series of analyses, each level of the series forming a deeper level of processing than the preceding level (Francis & Neath, 2014). The shallow levels of processing were believed to hold less importance and are defined as giving little attention to meaning of an item. Examples of which include focusing on how a word sounds or memorizing a phone number by repeating it over and over again (Francis & Neath, 2014) (Goldstein, 2015). The deeper levels processing involve paying close attention to the meaning of an item and relating that meaning to something else, an example of which would be focusing on the meaning of a word rather than just how the word sounds (Francis & Neath, 2014) (Goldstein, 2015). The second point Craik and Lockhart

The brain is constantly recalling and forming new memories and the part of the brain that deals with memories is the hippocampus, which is located near the centre of the brain. Three different types of memory are used to store different types of information. Semantic is factual knowledge such as remembering capital cities. Episodic is personal past experiences, what a person had for breakfast for example and procedural memory is how to do something such as drive a car. Organising thinking using various methods can improve memory recall. This essay will consider three methods: mental images, concepts and schemas using a range of research studies including the work of Raugh and Atkinson (1975), Bousfield (1953) and Bransford and Johnson