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Using Multivariate Statistics

Social interaction is a cornerstone of human life, yet the neural mechanisms underlying social cognition are poorly understood. Recently, research that integrates approaches from neuroscience and social psychology has begun to shed light on these processes, and converging evidence from neuroimaging studies suggests a unique role for the medial frontal cortex. We review the emerging literature that relates social cognition to the medial frontal cortex and, on the basis of anatomical and functional characteristics of this brain region, propose a theoretical model of medial frontal cortical function relevant to different aspects of social cognitive processing.

http://people.uncw.edu/tothj/PSY595/Amodio-Social%20Cognition-NRN-2006.pdf

Meeting of minds: the medial frontal cortex and social cognition.

Principles and Practice of Structural Equation Modeling (2nd ed.)

Statistical Analysis with Missing Data

Thank you for downloading an introduction to the event related potential technique. Maybe you have knowledge that, people have look hundreds times for their favorite readings like this an introduction to the event related potential technique, but end up in malicious downloads. Rather than reading a good book with a cup of tea in the afternoon, instead they are facing with some malicious bugs inside their laptop.

An Introduction To The Event Related Potential Technique

http://rsimons.psych.udel.edu/Hajcak,%20Moser%20et%20al.,%202006.pdf

The feedback-related negativity reflects the binary evaluation of good versus bad outcomes

The error-related negativity (ERN) is an event-related brain potential observed when subjects commit errors. To examine whether the ERN is sensitive to the value of errors, the motivational significance of errors was manipulated in two experiments. In Experiment 1, low and high monetary value errors were compared to evaluate the effect of trial value on the ERN. In Experiment 2, subjects performed a flanker task both while their performance was being evaluated and during a control condition. Consistent with the notion that the error-detection system is sensitive to the significance of errors, the ERN was significantly larger on high-value trials in Experiment 1 and during evaluation in Experiment 2. There were no corresponding effects on the correct response negativity, and no behavioral differences between conditions were evident in either experiment. These results are discussed in terms of the functional role of the ERN in response monitoring. Descriptors: Motivation, Event-related potentials (ERPs), Error-related negativity (ERN), Ne, Value, Affect

/pdf/on-the-ern-and-the-significance-of-errors-3za5xjjukj.pdf

On the ERN and the significance of errors.

The reinforcement learning theory suggests that the feedback negativity should be larger when feedback is unexpected. Two recent studies found, however, that the feedback negativity was unaffected by outcome probability. To further examine this issue, participants in the present studies made reward predictions on each trial of a gambling task where objective reward probability was indicated by a cue. In Study 1, participants made reward predictions following the cue, but prior to their gambling choice; in Study 2, predictions were made following their gambling choice. Predicted and unpredicted outcomes were associated with equivalent feedback negativities in Study 1. In Study 2, however, the feedback negativity was larger for unpredicted outcomes. These data suggest that the magnitude of the feedback negativity is sensitive to violations of reward prediction, but that this effect may depend on the close coupling of prediction and outcome.

It's worse than you thought: The feedback negativity and violations of reward prediction in gambling tasks

The error-related negativity (ERN) is an event-related brain potential observed when subjects receive feedback indicating errors or monetary losses. Evidence suggests that the ERN is larger for unexpected negative feedback. The P300 has also been shown to be enhanced for unexpected feedback, but does not appear to be sensitive to feedback valence. The present study evaluated the role of expectations on the ERN and P300 in two experiments that manipulated the probability of negative feedback (25%, 50%, or 75%) on a trial-by-trial basis in experiment 1, and by varying the frequency of positive and negative feedback across blocks of trials in experiment 2. In both experiments, P300 amplitude was larger for unexpected feedback; however, the ERN was equally large for expected and unexpected negative feedback. These results are discussed in terms of the potential role of expectations in processing errors and negative feedback.

Brain potentials associated with expected and unexpected good and bad outcomes.

Intentionally altering responses to unpleasant stimuli affects physiological and hemodynamic activity associated with emotional and cognitive processing. In the present experiment, we measured the late-positive potential (LPP) of the visually evoked event-related brain potential to examine the effects of intentional emotion modulation on electrophysiological correlates of emotional and cognitive processing. Seventeen participants received instructions to view, suppress, and enhance emotional responses to unpleasant stimuli. Results revealed significantly decreased electrophysiological activity during suppression of emotional responses beginning around 250 ms poststimulus and lasting several hundred milliseconds. These data suggest that ERPs are sensitive to emotion modulation/regulation processes. Descriptors: Late-positive potential, LPP, Unpleasant pictures, Emotion modulation/regulation, Attention Researchers have begun to examine the effects of instructions to alter responding to emotional stimuli on physiological and neural indices of emotional and cognitive processing (cf. Ochsner &

/pdf/intentional-modulation-of-emotional-responding-to-unpleasant-5gi4bz8ecw.pdf

Jason S. Moser

Papers

The feedback-related negativity reflects the binary evaluation of good versus bad outcomes

On the ERN and the significance of errors.

It's worse than you thought: The feedback negativity and violations of reward prediction in gambling tasks

Brain potentials associated with expected and unexpected good and bad outcomes.

Intentional modulation of emotional responding to unpleasant pictures: An ERP study