Men do experience the equivalent of menopause

Many therapies for anxiety disorders include some element of exposure

Indicate whether the statement is true or false

Which of the following statements is true of the signal-detection theory?

A) The signal received from an unidentified source cannot be perceived without having prior knowledge about the source. B) A stimulus appears to be in constant flux due to the inability of human senses to perceive the full spectrum of any sensory input. C) The relationship between a physical stimulus and a sensory response is fully mechanical. D) The intensity of a signal is one factor that determines whether people will perceive sensory stimuli or a difference between signals.