Essays about: "fMRI"

Showing result 1 - 5 of 44 essays containing the word fMRI.

  1. 1. An ROI-analysis of Activation in FG2, Amygdala lb and dlPFC : How are they Functionally Organized in a Face Working Memory task

    University essay from Linköpings universitet/Psykologi; Linköpings universitet/Psykologi

    Author : Jonathan Mira; Kalle Österman; [2020]
    Keywords : Functional Magnetic Resonance Imaging; ROI-analysis; Face Working Memory; n-back; FG2; Amygdala lb; dlPFC;

    Abstract : Working memory (WM) for facial identity and WM for facial expressions of emotions is important in everyday functioning and seems to have different neurobiological correlates. We investigated the level of neural activation in three regions of interest (ROI): the fusiform face area (FFA), dorsolateral prefrontal cortex (dlPFC), and amygdala; and how they are related to behavioral performance during an n-back task involving face stimuli with a complex background figure within an fMRI-paradigm. READ MORE

  2. 2. Optimization of Simultaneous Multi Slice EPI for clinical fMRI

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Andrea Fingerhut; [2019]
    Keywords : Physics and Astronomy;

    Abstract : Functional MRI is a method used to map brain functionality, where the blood oxygen level (BOLD) imaging method is frequently used. Stimulation of neurons leads to an increase in energy and oxygen consumption and signal can be detected since oxygen changes the magnetic properties of the blood. READ MORE

  3. 3. Assessment of Functional Connectivity Impairment in Rat Brains

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Androula Savva; [2019]
    Keywords : ;

    Abstract : While the rodent model has long been used in brain research, there exists no standardisedprocessing routine that can be employed for analysis and investigation of disease models. Thepresent thesis attempts to investigate a diseased brain model by implementing a collection ofscripts, combined with algorithms from existing neuroimaging software, and adapting themto the rodent brain, in an attempt to examine when and how monaural canal atresia affectsthe functional connectivity of the brain. READ MORE

  4. 4. The innate ability to cope with mathematics : A comparative fMRI study of children's and adults' neural activity during non-symbolic mathematical tasks

    University essay from Linköpings universitet/Institutionen för datavetenskap

    Author : Maja Lindberg; [2019]
    Keywords : fMRI; number sense; numeric cognition;

    Abstract : Humans as well as animals are born with a number sense, an innate ability to make approximations (Dehaene, 1997). However, low numeracy is an issue today and have a larger impact on the individuals lives than poor reading abilities (Parsons & Bynner, 2006). READ MORE

  5. 5. Neural Substrates Correlated with Magnitude Processing in Children and Adults : An fMRI study examining the Triple Code Model of numerical cognition

    University essay from Linköpings universitet/Institutionen för beteendevetenskap och lärande

    Author : Eva Riddervold Sandberg; [2019]
    Keywords : Triple Code Model TCM ; numerical cognition; magnitude processing; approximate number sense ANS ; developmental trajectories; children; adults;

    Abstract : The Triple Code Model (TCM) of numerical cognition has become one of the most predominantly theories for how humans perceive, manipulate, and communicate numerical information. It builds on the notion that there exist three functionally distinct but neurologically connected codes that handle manipulations of different numerical input (non-symbolic magnitudes, symbolic representations, and verbal number words). READ MORE