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Decision making and reaction time. By: David Nippard Hkin 416 Presented to: Dr. Martell. Overview. Decision making Reaction time How to develop faster reaction time. What is decision making ? . The process of making choices among possible alternatives.

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decision making and reaction time

Decision making and reaction time

By: David Nippard

Hkin 416

Presented to: Dr. Martell

overview
Overview
  • Decision making
  • Reaction time
  • How to develop faster reaction time
what is decision making
What is decision making ?
  • The process of making choices among possible alternatives.
    • Example: During a game of hockey there is a 2 on 1 opportunity, do you pass to your teammate? Or do you shoot on the goaltender?
      • *Note: The number of stimulus effects the decision.
what about the goalie
What about the goalie?
  • Will the player shoot, pass or deke?
what is reaction time
What is reaction time?
  • The time between stimulus and response: ”the interval of time between the application of a stimulus and the first indication of a response”
  • Senses (eyes, ears)---Brain (formulate response)---Motor Units (nerves)---Action (muscle)
  • Athlete’s ability to react to the information that is processed through the nervous system.
benefits of reaction time
Benefits of reaction time
  • Faster reaction time= advantage
  • Athletes with faster reaction time have the ability to monitor movements for longer periods of time.
  • Ability to recognize cues in the environment, or even begin the movement earlier.
  • E.g., Returning a tennis serve, saving a goal kick, hitting a baseball etc.
  • http://www.youtube.com/watch?v=0kTxTWwkY6k
3 types of reaction time
3 types of reaction time
  • Simple Reaction time: Only 1 stimulus and 1 response. (e.g. 100m race)
  • Choice Reaction Time: More than 1 stimulus, but each stimulus has a designated response. (what shot to choose in a game of badminton. Forehand, backhand, smash, drop-shot).
  • Discriminate Reaction time: Multiple stimuli but 1 response. (determining which colour is brighter by hitting an appropriate button)
movement time
Movement Time
  • The time it takes to complete the movements of a particular action, from the initiation, to the termination.
influences on reaction time and decision making
Influences on Reaction time and decision making
  • Age (Older = slower reaction time)
  • Intensity of stimulus (Bigger, Louder, Brighter stimuli= faster reaction time)
  • Anticipation (If prepared, reaction time may decrease)
  • Gender (females show a slower reaction time compared to men)
  • Previous experience of stimuli (faster reaction time when exposed to stimuli repeatedly)
influences on reaction time and decision making con t
Influences on Reaction time and decision making .con’t
  • Number of Stimulus response alternatives
    • Hick’s Law
      • Relationship between reaction time and the number of stimuli presented. The more stimuli available, the longer the reaction time.

-This occurs to a certain point, where the response time remains constant despite the increase of stimulus.

is it possible to develop faster reaction time
Is it possible to develop faster reaction time?
  • Practice- with the same stimulus/response, where the outcome is the same response=faster reaction time. The response becomes Automatic.
  • Anticipation- the action in predicting or expecting something.
    • E.g. Anticipating where the goal kick is going to be placed.
two kinds of anticipation
Two kinds of anticipation
  • Spatial anticipation: ability to predict what will happen in the environment.
    • E.g., predict a badminton player’s type of shot (drop-shot vs smash)
  • Temporal anticipation: ability to predict when an environmental event will occur
    • E.g., predict when the referee will drop the puck, or when the referee will toss the basketball for a jump-ball