Final answer:
Corey's lack of memory of the events that occurred immediately after his dog was kidnapped until it was returned is an example of dissociative amnesia, where personal information is temporarily forgotten usually due to a traumatic event.
Step-by-step explanation:
Corey's inability to recall the events immediately following the attack, up until the safe return of his dog, is a classic example of dissociative amnesia. Unlike retrograde amnesia, which is the loss of memory for events that occurred before a trauma, dissociative amnesia involves a temporary inability to recall personal information, usually after a stressful or traumatic event. This type of amnesia is characterized by a period of forgetfulness that is too extensive to be considered ordinary forgetfulness and is often related to psychological trauma such as a mugging and robbery. In Corey's case, the psychological impact of his dog being kidnapped likely triggered a temporary memory block regarding the time period following the traumatic experience.