Understanding Perception and Motor Learning: Insights from Dr. Emily H. Wughalter and Sean White
This video presentation by Dr. Emily H. Wughalter and Sean White, filmed during the February 2010 Olympics, dives into the intricate processes of perception and motor learning. It covers the information processing model, including stimulus identification, response selection, and programming, with a focus on reaction times. The discussion highlights factors affecting perception, such as stimulus clarity and intensity, and the implications of the Inverted U-Hypothesis on performance. Explore the vital role of selective attention and how it shapes motor behavior and learning.
Understanding Perception and Motor Learning: Insights from Dr. Emily H. Wughalter and Sean White
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Presentation Transcript
Perception and Motor Learning Dr. Emily H. Wughalter
Sean White in February 2010 Olympics http://www.nbcolympics.com/video/assetid=d924411a-bea6-4fd8-b485-f58dc5238dfe.html
A model of information processing Stimulus Identification Response Selection Response Programming Input Output
Reaction Time • Reaction time is the measure of input and central processes or until the beginnings of overt movement • Types of Reaction Time Defined • Simple Reaction Time • Choice Reaction Time • Discrimination Reaction Time
Two factors affecting stimulus identification are: Stimulus Clarity – Sharpness, Focus Stimulus Clarity - Focus Stimulus Intensity - Brightness, Loudness Stimulus Intensity - Brightness, Loudness Peripheral Vision
Inverted U-Hypothesis High Performance Low Low High Arousal
What affects the inverted U-Hypothesis? • Inter and intra-individual differences • Meaningfulness • Complexity • Variation • Uncertainty • Intensity
Perception is responsible for: • Detection • Comparison • Recognition
Information Comparison • Information comparison is measured in a paradigm where two intensities from the same source are present for a time period long enough to detect the information • Just Noticeable Difference (JND) means the least amount of difference required to report the difference in stimuli and be correct at least 50 percent of the time.
Absolute Judgment • Absolute judgment is the extent to which a participant is capable of matching a stimulus in the environment to one already stored in memory.
Perceptual ProcessLimitations • Space: 7+2 items • Time: 20 - 60 seconds
How is detection of information explained in motor behavior? • Low activation system information is lost • High activation system too much noise and information is lost • Uncertainty – speed • Noise – poor quality or ambiguity • Arousal
Adam’s Closed Loop Theory (1971) Movement Organizer Standard Movement Error Detector
What is selective attention? • Selective attention means paying attention to those regulatory aspects of the environment.
Cocktail Party Phenomenon • Meaningfulness • Pertinence
Kahneman’s (1973) Model of Selective Attention • Enduring Dispositions • “rules of involuntary attention” • Momentary Intentions • Attention to things where instruction leads us to pay attention