Shohamy Hippocampus Bias Decisions

Preference by association: how memory mechanisms in the hippocampus bias decisions.

Every day people make new choices between alternatives that they have never directly experienced. Yet, such decisions are often made rapidly and confidently. Here, we show that the hippocampus, traditionally known for its role in building long-term declarative memories, enables the spread of value across memories, thereby guiding decisions between new choice options. Using functional brain imag...

How associative mechanisms in the hippocampus guide decisions: Evidence from sensory preconditioning in humans

Hippocampus Bias Decisions Preference by Association : How Memory

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The Hippocampus and Dopaminergic Midbrain: Old Couple, New Insights

Humans have a natural ability to gain new insights by generalizing from previous experience. In this issue of Neuron, Shohamy and Wagner reveal how generalizations naturally emerge during associative learning through a partnership between putatively dopaminergic circuitry in the midbrain and the hippocampus.

BRIEF REPORT Memory States Influence Value-Based Decisions

Using memory to guide decisions allows past experience to improve future outcomes. However, the circumstances that modulate how and when memory influences decisions are not well understood. Here, we report that the use of memories to guide decisions depends on the context in which these decisions are made. We show that decisions made in the context of familiar images are more likely to be influ...