Research Commons
      • Browse 
        • Communities & Collections
        • Titles
        • Authors
        • By Issue Date
        • Subjects
        • Types
        • Series
      • Help 
        • About
        • Collection Policy
        • OA Mandate Guidelines
        • Guidelines FAQ
        • Contact Us
      • My Account 
        • Sign In
        • Register
      View Item 
      •   Research Commons
      • University of Waikato Theses
      • Masters Degree Theses
      • View Item
      •   Research Commons
      • University of Waikato Theses
      • Masters Degree Theses
      • View Item
      JavaScript is disabled for your browser. Some features of this site may not work without it.

      Influences of target stimulus probability and reinforcement probability on hens' performance on a signal detection task

      Haycock, Janine Vanessa
      Thumbnail
      Files
      thesis.pdf
      1.439Mb
      Citation
      Export citation
      Haycock, J. V. (2017). Influences of target stimulus probability and reinforcement probability on hens’ performance on a signal detection task (Thesis, Master of Applied Psychology (MAppPsy)). University of Waikato, Hamilton, New Zealand. Retrieved from https://hdl.handle.net/10289/11222
      Permanent Research Commons link: https://hdl.handle.net/10289/11222
      Abstract
      Hens’ signal-detection performance was examined across a range of signal-present trial probabilities and reinforcement probabilities. These variables have been studied previously with the yes/no procedure, but have not been systematically evaluated using the go/no-go procedure. This study employed natural contingencies where hits were reinforced, but all other responses had no scheduled consequences. The hens were required to discriminate between a signal-present (bright light) and signal-absent trial (dimmer light) by responding on the stimulus key or bypassing the trial by responding on a second key. The hens were exposed to reinforcement rates of 100%, 75% and 50% and signal probabilities of 50%, 25%, 12.5%, and 6%. Manipulation of reinforcement rate across the range examined did not significantly influence performance at any stimulus probability. Specificity increased over sessions, suggesting a practice effect for signal detection tasks. The go/no-go procedure should be considered for operational signal detection applications as it was found to produce robust accuracy across a range of conditions.
      Date
      2017
      Type
      Thesis
      Degree Name
      Master of Applied Psychology (MAppPsy)
      Supervisors
      Edwards, Timothy L.
      Foster, T. Mary
      Publisher
      University of Waikato
      Rights
      All items in Research Commons are provided for private study and research purposes and are protected by copyright with all rights reserved unless otherwise indicated.
      Collections
      • Masters Degree Theses [2381]
      Show full item record  

      Usage

      Downloads, last 12 months
      74
       
       

      Usage Statistics

      For this itemFor all of Research Commons

      The University of Waikato - Te Whare Wānanga o WaikatoFeedback and RequestsCopyright and Legal Statement