Browsing Faculty of Arts and Sciences by Keyword "fMRI"
Now showing items 1-20 of 43
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Action Representations in the Visual System
(2021-04-29)We see other people’s actions every day. Yet, most research investigating how we recognize and understand these actions focuses on abstract, conceptual representations outside of the visual system. This thesis shifts this ... -
Altered intrinsic functional coupling between core neurocognitive networks in Parkinson's disease
(Elsevier, 2015)Parkinson's disease (PD) is largely attributed to disruptions in the nigrostriatal dopamine system. These neurodegenerative changes may also have a more global effect on intrinsic brain organization at the cortical level. ... -
Amygdala Response to Facial Expressions Reflects Emotional Learning
(Society for Neuroscience, 2006)The functional role of the human amygdala in the evaluation of emotional facial expressions is unclear. Previous animal and human research shows that the amygdala participates in processing positive and negative reinforcement ... -
Brain Networks for Analyzing Eye Gaze
(Elsevier, 2003)The eyes convey a wealth of information in social interactions. This information is analyzed by multiple brain networks, which we identified using functional magnetic resonance imaging (MRI). Subjects attempted to detect ... -
Childhood Adversity is Associated with Left Basal Ganglia Dysfunction During Reward Anticipation in Adulthood
(Elsevier, 2009)Background: Childhood adversity increases the risk of psychopathology, but the neurobiological mechanisms underlying this vulnerability are not well-understood. In animal models, early adversity is associated with dysfunction ... -
Cognitive Control of Emotional Information in Schizophrenia: Understanding the Mechanisms of Social Functioning Impairments
(2013-10-18)Social functioning impairments are a core, debilitating, and treatment refractory feature of schizophrenia. The mechanisms contributing to these impairments are unknown. Cognitive control mechanisms, mediated by the lateral ... -
A Cognitive Neuroscience of Social Groups
(2013-09-30)We used functional magnetic resonance imaging to investigate how the human brain processes information about social groups in three domains. Study 1: Semantic knowledge. Participants were scanned while they answered ... -
The compensatory dynamic of inter-hemispheric interactions in visuospatial attention revealed using rTMS and fMRI
(Frontiers Media S.A., 2014)A balance of mutual tonic inhibition between bi-hemispheric posterior parietal cortices is believed to play an important role in bilateral visual attention. However, experimental support for this notion has been mainly ... -
Conscious Processing During Retrieval Can Occur in Early and Late Visual Regions
(Elsevier BV, 2013)Previous evidence has suggested a functional-anatomic dissociation between conscious and nonconscious processing during retrieval where early visual regions BA17/18 are associated with nonconscious processing and late ... -
Cortico-Limbic Response to Personally Challenging Emotional Stimuli After Complete Recovery from Depression
(Elsevier, 2009)People vulnerable to depression are at increased risk of relapse if they live in highly critical family environments. To explore this link, we used neuroimaging methods to examine cortico-limbic responding to personal ... -
A Critical Look at the Embodied Cognition Hypothesis and a New Proposal for Grounding Conceptual Content
(Elsevier, 2008)Many studies have demonstrated that the sensory and motor systems are activated during conceptual processing. Such results have been interpreted as indicating that concepts, and important aspects of cognition more broadly, ... -
Dissociable Neural Correlates of Stereotypes and Other Forms of Semantic Knowledge
(Oxford University Press (OUP), 2011)Semantic knowledge refers to the information that people have about categories of objects and living things. Social psychologists have long debated whether the information that perceivers have about categories of people - ... -
Dissociation of Neural Regions Associated with Anticipatory Versus Consummatory Phases of Incentive Processing
(Blackwell Publishers, 2008)Incentive delay tasks implicate the striatum and medial frontal cortex in reward processing. However, prior studies delivered more rewards than penalties, possibly leading to unwanted differences in signal-to-noise ratio. ... -
Failure to Modulate Attentional Control in Advanced Aging Linked to White Matter Pathology
(Oxford University Press, 2012)Advanced aging is associated with reduced attentional control and less flexible information processing. Here, the origins of these cognitive effects were explored using a functional magnetic resonance imaging task that ... -
Goal-Directed Simulation of Past and Future Events: Cognitive and Neuroimaging Approaches
(2013-08-21)Goal-directed episodic simulation, the imaginative construction of a hypothetical personal event or series of events focused on a specific goal, is essential to our everyday lives. We often imagine how we could solve a ... -
The Influence of Personality on Neural Mechanisms of Observational Fear and Reward Learning
(Elsevier, 2008)Fear and reward learning can occur through direct experience or observation. Both channels can enhance survival or create maladaptive behavior. We used fMRI to isolate neural mechanisms of observational fear and reward ... -
Inhibition of Action, Thought, and Emotion: A Selective Neurobiological Review
(Elsevier, 2007)The neural bases of inhibitory function are reviewed, covering data from paradigms assessing inhibition of motor responses (antisaccade, go/nogo, stop-signal), cognitive sets (e.g., Wisconsin Card Sort Test), and emotion ... -
Judging semantic similarity: an event-related fMRI study with auditory word stimuli
(Elsevier BV, 2010)Much of mental life consists in thinking about object concepts that are not currently within the scope of perception. The general system that enables multiple representations to be maintained and compared is referred to ... -
Lateral prefrontal cortex activity during cognitive control of emotion predicts response to social stress in schizophrenia
(Elsevier, 2014)LPFC dysfunction is a well-established neural impairment in schizophrenia and is associated with worse symptoms. However, how LPFC activation influences symptoms is unclear. Previous findings in healthy individuals demonstrate ... -
Mentalizing About Emotion and its Relationship to Empathy
(Oxford University Press, 2008)Mentalizing involves the ability to predict someone elses behavior based on their belief state. More advanced mentalizing skills involve integrating knowledge about beliefs with knowledge about the emotional impact of those ...