• Publications
  • Influence
Regional dissociations within the hippocampus—memory and anxiety
The amnestic effects of hippocampal lesions are well documented, leading to numerous memory-based theories of hippocampal function. It is debatable, however, whether any one of these theories canExpand
  • 1,216
  • 64
  • PDF
Action sets and decisions in the medial frontal cortex
Activations in human dorsomedial frontal and cingulate cortices are often present in neuroimaging studies of decision making and action selection. Interpretations have emphasized executive control,Expand
  • 944
  • 52
  • PDF
Separate neural pathways process different decision costs
Behavioral ecologists and economists emphasize that potential costs, as well as rewards, influence decision making. Although neuroscientists assume that frontal areas are central to decision making,Expand
  • 513
  • 52
  • PDF
Distinct components of spatial learning revealed by prior training and NMDA receptor blockade
SYNAPTIC plasticity dependent on N-methyl-D-aspartate (NMDA) receptors is thought to underlie certain types of learning and memory1–3. In support of this, both hippocampal long-term potentiation andExpand
  • 556
  • 32
Functional Specialization within Medial Frontal Cortex of the Anterior Cingulate for Evaluating Effort-Related Decisions
The rat medial frontal cortex (MFC) has been implicated in allowing animals to work harder to receive larger rewards. However, it is unknown what role the individual MFC regions [anterior cingulateExpand
  • 450
  • 31
  • PDF
Recruitment of Parvalbumin-Positive Interneurons Determines Hippocampal Function and Associated Behavior
Perisomatic inhibition provided by a subgroup of GABAergic interneurons plays a critical role in timing the output of pyramidal cells. To test their contribution at the network and the behavioralExpand
  • 412
  • 28
  • PDF
Dissociating context and space within the hippocampus: effects of complete, dorsal, and ventral excitotoxic hippocampal lesions on conditioned freezing and spatial learning.
Rats with complete excitotoxic hippocampal lesions or selective damage to the dorsal or ventral hippocampus were compared with controls on measures of contextually conditioned freezing in a signaledExpand
  • 325
  • 24
Hippocampal synaptic plasticity, spatial memory and anxiety
Recent studies using transgenic mice lacking NMDA receptors in the hippocampus challenge the long-standing hypothesis that hippocampal long-term potentiation-like mechanisms underlie the encoding andExpand
  • 379
  • 21
  • PDF
Catechol-O-Methyltransferase Inhibition Improves Set-Shifting Performance and Elevates Stimulated Dopamine Release in the Rat Prefrontal Cortex
The Val158Met polymorphism of the human catechol-O-methyltransferase (COMT) gene affects activity of the enzyme and influences performance and efficiency of the prefrontal cortex (PFC); however,Expand
  • 380
  • 18
  • PDF
Ventral hippocampal lesions affect anxiety but not spatial learning
Rats with cytotoxic ventral hippocampal lesions which removed approximately 50% of the hippocampus (including dentate gyrus) starting from the temporal pole, displayed a reduction in freezingExpand
  • 417
  • 17