Answer to Question 1
The standard behavioral intervention, based on classical conditioning principles, is using an alarm that sounds at the first detection of urine. Bed-wetting alarms have been around since Mowrer and Mowrer (1938) first invented the bell and pad (a battery-operated device that produced a loud sound as soon as a drop of urine closed the electrical circuit), and they are among the safest and most effective treatments. Modern alarms have a simple moisture sensor that snaps into a child's pajamas, with a small speaker attached to the shoulder to awaken the child. A single drop of urine completes the electronic circuit, setting off a piercing alarm that causes the child to tense and reflexively stop urinating.
Answer to Question 2
Perhaps you have noticed how sleep problems co-occur with many different disorders, including attention-deficit/hyperactivity disorder (ADHD), depression, anxiety, conduct problems, and developmental disorders (Chorney et al., 2008; Kelly & El-Sheikh, 2013). This connection raises an important consideration: Do sleep problems cause other disorders, or do they result from them? The answer to this question requires an understanding of how sleep problems interact with a person's psychological well-being. Since sleep problems commonly arise from particular stressorsan upcoming exam or a relationship problemwe tend to think that sleep difficulties are secondary symptoms of a more primary problem. However, the relationship between sleep problems and psychological adjustment is bidirectional.
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Traction is the application of a pulling force to maintain bone alignment during fracture healing. D
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