• Publications
  • Influence
Changes in brain activity related to eating chocolate: from pleasure to aversion.
The hypothesis that there are two separate motivational systems: one orchestrating approach and another avoidance behaviours is supported, suggesting that the reward value of food is represented here.
Relation of reward from food intake and anticipated food intake to obesity: a functional magnetic resonance imaging study.
Results suggest that individuals who show greater activation in the gustatory cortex and somatosensory regions in response to anticipation and consumption of food, but who show weakeractivation in the striatum during food intake, may be at risk for overeating and consequent weight gain.
Relation Between Obesity and Blunted Striatal Response to Food Is Moderated by TaqIA A1 Allele
Cross-sectional and prospective data from two functional magnetic resonance imaging studies support the hypothesis that individuals may overeat to compensate for a hypofunctioning dorsal striatum, particularly those with genetic polymorphisms thought to attenuate dopamine signaling in this region.
Monetary incentives enhance processing in brain regions mediating top-down control of attention.
The results show that abstract incentives enhance neural processing within the attention network in a process- and valence-selective manner and show that different cognitive and motivational mechanisms may produce a common effect upon unimodal cortices in order to enhance processing to serve the current behavioral goal.
Taste representation in the human insula
  • D. Small
  • Biology, Psychology
    Brain Structure and Function
  • 29 May 2010
Evidence is presented to support the possibility that this region of taste representation in human insular cortex is better conceptualized as an integrated oral sensory region that plays role in feeding behavior, rather than as unimodal sensory cortex.
Human cortical gustatory areas: a review of functional neuroimaging data.
Overall significantly more peaks originated from the right hemisphere suggesting asymmetrical cortical representation of taste favoring theright hemisphere.
The spatial attention network interacts with limbic and monoaminergic systems to modulate motivation-induced attention shifts.
Results reveal conjoint limbic and monoaminergic encoding of motivational salience in spatial attention and emphasize the interactive role of posterior parietal and cingulate cortices in integrating motivational information with spatial attention, a process that is critical for selective allocation of attentional resources in an environment where target position and relevance can change rapidly.