Free Will: a new study, with timed reaction (Introduction)

by David Turell , Friday, April 29, 2016, 19:46 (2916 days ago) @ David Turell

I'm not sure the conclusions of this study are valid. My choosing a product in a store are not the same as trying to choose which circle will turn red:-http://blogs.scientificamerican.com/mind-guest-blog/what-neuroscience-says-about-free-will/?WT.mc_id=SA_DD_20160429-"In a classic paper published almost 20 years ago, the psychologists Dan Wegner and Thalia Wheatley made a revolutionary proposal: The experience of intentionally willing an action, they suggested, is often nothing more than a post hoc causal inference that our thoughts caused some behavior. The feeling itself, however, plays no causal role in producing that behavior. This could sometimes lead us to think we made a choice when we actually didn't or think we made a different choice than we actually did.-"But there's a mystery here. Suppose, as Wegner and Wheatley propose, that we observe ourselves (unconsciously) perform some action, like picking out a box of cereal in the grocery store, and then only afterwards come to infer that we did this intentionally. If this is the true sequence of events, how could we be deceived into believing that we had intentionally made our choice before the consequences of this action were observed? This explanation for how we think of our agency would seem to require supernatural backwards causation, with our experience of conscious will being both a product and an apparent cause of behavior.-***-
"In one of our studies, participants were repeatedly presented with five white circles in random locations on a computer monitor and were asked to quickly choose one of the circles in their head before one lit up red. If a circle turned red so fast that they didn't feel like they were able to complete their choice, participants could indicate that they ran out of time. Otherwise, they indicated whether they had chosen the red circle (before it turned red) or had chosen a different circle. We explored how likely people were to report a successful prediction among these instances in which they believed that they had time to make a choice.-"Unbeknownst to participants, the circle that lit up red on each trial of the experiment was selected completely randomly by our computer script. Hence, if participants were truly completing their choices when they claimed to be completing them—before one of the circles turned red—they should have chosen the red circle on approximately 1 in 5 trials. Yet participants' reported performance deviated unrealistically far from this 20% probability, exceeding 30% when a circle turned red especially quickly. This pattern of responding suggests that participants' minds had sometimes swapped the order of events in conscious awareness, creating an illusion that a choice had preceded the color change when, in fact, it was biased by it.-***-"In fact, the people who showed our time-dependent illusion were often completely unaware of their above-chance performance when asked about it in debriefing after the experiment was over. Moreover, in a related experiment, we found that the bias to choose correctly was not driven by confusion or uncertainty about what was chosen: Even when participants were highly confident in their choice, they showed a tendency to “choose” correctly at an impossibly high rate.-"Taken together, these findings suggest that we may be systematically misled about how we make choices, even when we have strong intuitions to the contrary. Why, though, would our minds fool us in such a seemingly silly way in the first place? Wouldn't this illusion wreak havoc on our mental lives and behavior? -"Maybe not. Perhaps the illusion can simply be explained by appeal to limits in the brain's perceptual processing, which only messes up at the very short time scales measured in our (or similar) experiments and which are unlikely to affect us in the real world.-"The illusion may only apply to a small set of our choices that are made quickly and without too much thought. Or it may be pervasive and ubiquitous—governing all aspects of our behavior, from our most minute to our most important decisions. Most likely, the truth lies somewhere in between these extremes. Whatever the case may be, our studies add to a growing body of work suggesting that even our most seemingly ironclad beliefs about our own agency and conscious experience can be dead wrong."-Comment: This study at guessing the red dot illustrates the authors' doubting comments more than something positive. I still think my choice of a cereal is not the same at guessing a red dot against time. The brain does have a reaction time deficit biologically and we know consciousness automatically fills in for the gaps in time. Tricking the brain is well known. I'm not sure what this proves, but it is interesting.