Shared Mechanisms of Perceptual Learning and Decision Making

Neural Mechanisms of Perceptual Decision Making

Assessing Practitioners’ and Patients’ Needs Regarding Shared Decision-Making and Decision Aids

       Background: As part of the process of developing a decision aid for carpal tunnel syndrome (CTS) according to the Ottawa Decision Support Framework, we were interested in the level of ‘decisional conflict’ of hand surgeons and patients with CTS. This study addresses the null hypothesis that there is no difference between surgeon and patient decisional conflict with respect to test and tr...

Brain mechanisms for perceptual and reward-related decision-making.

Phenomenological models of decision-making, including the drift-diffusion and race models, are compared with mechanistic, biologically plausible models, such as integrate-and-fire attractor neuronal network models. The attractor network models show how decision confidence is an emergent property; and make testable predictions about the neural processes (including neuronal activity and fMRI sign...

Shared predictive decision-making mechanisms in action and language

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How mechanisms of perceptual decision-making affect the psychometric function.

Psychometric functions are often interpreted in the context of Signal Detection Theory, which emphasizes a distinction between sensory processing and non-sensory decision rules in the brain. This framework has helped to relate perceptual sensitivity to the "neurometric" sensitivity of sensory-driven neural activity. However, perceptual sensitivity, as interpreted via Signal Detection Theory, is...