Cortical substrates for exploratory decisions in humans

Article Abstract:

Human choice of subjects can be characterized by a computationally well-regarded strategy for addressing the explore/exploit dilemma, hence functional magnetic resonance imaging is employed to show that the frontopolar cortex and intraparietal sulcus are preferentially active during exploratory decisions. Results provide a computationally precise characterization of the contribution of key decision-related brain systems to each of these functions.

United States, Usage, Magnetic resonance imaging, Cerebral cortex, Reinforcement (Psychology), Neuropsychology

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Temporal difference models describe higher-order learning in humans:

Article Abstract:

A key computational strategy that humans use to learn predictions about pain is described in a functional magnetic resonance imagining study of higher-order aversive conditioning. It is presented that neutral activity in the ventral striatum and the anterior insula displays a marked correspondence to the signals for sequential learning predicted by temporal difference models.

Magnetic resonance, Learning ability

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The coast in colour

Article Abstract:

The research work at Pinnacle Point on the coast of South Africa which provides evidence into human adaptation to coastal conditions dating back to more than 165,000 year is reported.

South Africa, Human beings, Natural history, Adaptation (Biology), Evolutionary adaptation, Cognition, Humans, Man, Stone age

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