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document
Temporal judgements of internal and external events in persons with and without autism . When participants make judgments about the onset of self-initiated movements they typically report the movement occurred earlier than it had [ Obhi , S. S. , & Haggard , P. ( 2004 ) . Free will and free wo n't . American Scientific , 92 , 358-365. ] . One interpretation is that feed-forward processes lead to awareness of the movement prior to execution . Because individuals with autism experience reduced preparatory activity prior to a voluntary movement , the present study sought to determine whether these anticipatory biases are exhibited by persons with autism . Participants watched a dot move in a circle and pressed the spacebar any time after one revolution . A tone either followed the participants ' voluntary movement or was computer generated . Participants in both groups made anticipatory judgements regarding movement initiation ( approximately 100 ms ) . When the movement and tone occurred together this anticipatory bias was also present , regardless of which event participants focused on . Individuals with autism appear to have access to a similar representation of voluntary movements , however this representation may be more variable .
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Intervention_Psychological
Temporal judgements
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Intervention_Psychological
judgments
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Intervention_Educational
Participants watched a dot move in a circle and pressed the spacebar any time after one revolution
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Intervention_Psychological
judgements
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Outcome_Mental
judgements
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Outcome_Mental
movement initiation
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Outcome_Mental
voluntary movements
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Participant_Condition
autism
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Participant_Condition
autism
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Participant_Condition
autism
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Participant_Condition
autism