How Can People Be so Good at Intercepting Accelerating Objects if They Are so Poor at Visually Judging Acceleration?
نویسندگان
چکیده
People are known to be very poor at visually judging acceleration. Yet, they are extremely proficient at intercepting balls that fall under gravitational acceleration. How is this possible? We previously found that people make systematic errors when trying to tap on targets that move with different constant accelerations or decelerations on interleaved trials. Here, we show that providing contextual information that indicates how the target will decelerate on the next trial does not reduce such errors. Such errors do rapidly diminish if the same deceleration is present on successive trials. After observing several targets move with a particular acceleration or deceleration without attempting to tap on them, participants tapped as if they had never experienced the acceleration or deceleration. Thus, people presumably deal with acceleration when catching or hitting a ball by compensating for the errors that they made on preceding attempts.
منابع مشابه
How people achieve their amazing temporal precision in interception.
People can hit rapidly moving balls with amazing precision. To determine how they manage to do so, we explored how various factors that we could manipulate influenced people's precision when intercepting virtual targets. We found that temporal precision was highest for fast targets that subjects were free to intercept wherever they wished. Temporal precision was much poorer when the point of in...
متن کاملWhy the Critics of Poor Health Service Delivery Are the Causes of Poor Service Delivery: A Need to Train the Policy-makers; Comment on “Why and How Is Compassion Necessary to Provide Good Quality Healthcare?”
This comment on Professor Fotaki’s Editorial agrees with her arguments that training health professionals in more compassionate, caring and ethically sound care will have little value unless the system in which they work changes. It argues that for system change to occur, senior management, government members and civil servants themselves need training so that they learn to understand the effec...
متن کاملPnm-25: The Importance of Reproductive Health
a:4:{s:10:"Background";s:797:"Reproductive health is defined as a state of physical, mental, and social well-being in all matters relating to the reproductive system, at all stages of life. Good reproductive health implies that people are able to have a satisfying and safe sex life, the capability to reproduce and the freedom to decide if, when, and how often to do so. Men and women should be i...
متن کاملEpidemiology and pathology of plagiarism (2)
No doubt that the bright future of higher education systems is being threatened worldwide by the growing trend of research misconduct (RM) and its faith depends on our act against it. RM as a pandemic scientific damage has turned to a complicated phenomenon and its remedy needs global determination. As I have mentioned before (1), as long as the main target of publication, at least for many aca...
متن کاملThe effect of redesign workstation on Speech Interference Level (SIL) among bank tellers
Abstract Background: There is always an interaction between man and his environment that can be the cause of physical, physiological and psychological stress on people and also cause discomfort, annoyance, and have direct and indirect effects on their performance and productivity, health and safety. People in their workplace are exposed to many factors related to work activities and environmen...
متن کامل