Memory And Univariate Analysis

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In the article by (multiple authors) wanted to test whether memory and imagination where independent functions. Similarly it is believed that imagining the future depends on the ability to retrieve episodic details from past experiences in order to build a novel experience. Both memory and imaging functions are known to be carried out in the hippocampus so the researchers wanted to know whether the hippocampus could distinguish between remembering the past and imaging the future. To address this question the researchers used a series of techniques; fMRI also multivariate and univariate analysis techniques. When using the fMRI it is known to be very sensitive to movement. This in turn led to omission of some data due to a participant’s movement. …show more content…
hippocampus (univariate). The participants were all college aged and a mixture of both male and female. Researchers collected sixty personal photos from each participant taken within the last five years to use in the memory task. This is a notable exception because with photos that is familiar to the participants, when doing the imagine task they would not recall false memory. For the imagine task researchers used novel places and activities. The way they found these was through a survey each participant took that inquired about leisure and travel activities. This particular thing was done in order to reduce the likelihood of cofounds. In class we talked about the block design method and how it allows us to run many treatments and has less bias associated with it. In each of the tasks (remember, baseline, and imagining) the participants were showed a photo then given a moment, some milliseconds. In both remembering and imagining, the task set up was the same. Contrary, the baseline task was done in a series of static images (insert Citation). But with this approach I would like to note that it created tons of noise in the MRI acquisition. This is because the participants were shown an image for about five hundred milliseconds, and then showed a static noise image for thirty five hundred milliseconds; however, participants had to indicate whether or not they noticed the target on the image by pressing a button. This is a problem because MRI equipment is very sensitive to

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