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Psychiatry and Psychology Commons

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Psychological Phenomena and Processes

Chapman University

Voluntary action

Publication Year

Articles 1 - 3 of 3

Full-Text Articles in Psychiatry and Psychology

Free Will Without Consciousness?, Liad Mudrik, Inbal Gur Arie, Yoni Amir, Yarden Shir, Pamela Hieronymi, Uri Maoz, Timothy O'Connor, Aaron Schurger, Manuel Vargas, Tillman Vierkant, Walter Sinnott-Armstrong, Adina Roskies Apr 2022

Free Will Without Consciousness?, Liad Mudrik, Inbal Gur Arie, Yoni Amir, Yarden Shir, Pamela Hieronymi, Uri Maoz, Timothy O'Connor, Aaron Schurger, Manuel Vargas, Tillman Vierkant, Walter Sinnott-Armstrong, Adina Roskies

Psychology Faculty Articles and Research

Findings demonstrating decision-related neural activity preceding volitional actions have dominated the discussion about how science can inform the free will debate. These discussions have largely ignored studies suggesting that decisions might be influenced or biased by various unconscious processes. If these effects are indeed real, do they render subjects’ decisions less free or even unfree? Here, we argue that, while unconscious influences on decision-making do not threaten the existence of free will in general, they provide important information about limitations on freedom in specific circumstances. We demonstrate that aspects of this long-lasting controversy are empirically testable and provide insight into …


Specific Relationship Between The Shape Of The Readiness Potential, Subjective Decision Time, And Waiting Time Predicted By An Accumulator Model With Temporally Autocorrelated Input Noise, Aaron Schurger Jan 2018

Specific Relationship Between The Shape Of The Readiness Potential, Subjective Decision Time, And Waiting Time Predicted By An Accumulator Model With Temporally Autocorrelated Input Noise, Aaron Schurger

Psychology Faculty Articles and Research

Self-initiated movements are reliably preceded by a gradual buildup of neuronal activity known as the readiness potential (RP). Recent evidence suggests that the RP may reflect subthreshold stochastic fluctuations in neural activity that can be modeled as a process of accumulation to bound. One element of accumulator models that has been largely overlooked in the literature is the stochastic term, which is traditionally modeled as Gaussian white noise. While there may be practical reasons for this choice, we have long known that noise in neural systems is not white – it is long-term correlated with spectral density of the form …


What Does Recent Neuroscience Tell Us About Criminal Responsibility?, Uri Maoz, Gideon Yaffe Dec 2015

What Does Recent Neuroscience Tell Us About Criminal Responsibility?, Uri Maoz, Gideon Yaffe

Psychology Faculty Articles and Research

A defendant is criminally responsible for his action only if he is shown to have engaged in a guilty act—actus reus (eg for larceny, voluntarily taking someone else’s property without permission)—while possessing a guilty mind—mens rea (eg knowing that he had taken someone else’s property without permission, intending not to return it)—and lacking affirmative defenses (eg the insanity defense or self-defense). We therefore first review neuroscientific studies that bear on the nature of voluntary action, and so could, potentially, tell us something of importance about the actus reus of crimes.Then we look at studies of intention, perception of …