The case of H.M demonstrates three important aspects of long-term memory processes:Long-term memory processes are not distributed throughout the brain.Long-term memory encompasses a number of different abilities.Memory is separable from language, perceptual and other cognitive functions. Amnesia refers to a pattern of memory loss affecting elements of long-term memory, while short-term memory remains intact. It is sometimes also called the amnesic syndrome. Amnesia has a number of general characteristics:Short-term memory is intactMemory for language and concepts is intactThere is severe and lasting anterograde amnesia: memory for events after the onset of amnesia will be impaired.There will be retrograde amnesia, the patient will have a loss of memory for events prior to the onset of amnesia.Skill learning, conditioning and priming will be unaffected.Ribot’s law states that recently formed memories are more susceptible to impairment than are older memories. The Wechsler Memory Scale is a widely used neurocognitive assessment that measures visual memory, auditory memory and working memory. There are several causes for amnesia, such as brain surgery, infections, head injuries, a stroke or Korsakoff’s syndrome, in which a thiamine (vitamin B1) deficiency causes brain damage. James made the difference between primary and secondary memory. Secondary memory is long-term memory. Verbal learning refers to the area of experimental psychology concerned with how we learn and remember language-based items. There is a distinction in long-term memory between the following to long-term memory types:Non-declarative memory (implicit memory)This is the memory that is not accessed consciously and that we are not able to report verbally. It includes memory which benefits from previous experience but without our awareness of that experience.Declarative memory (explicit memory)This is the memory that involves conscious recollection of memories...