There are many reasons that a person with Alzheimer's disease Alzheimer's disease
A neurological disease that affects memory and behaviour. It is characterized by beta-amyloid plaques and neurofibrillary tangles in the brain. There is no known cause but genetics and lifestyle are thought to play a role. might have difficulty with operating gadgets. A common reason, however is that this represents apraxia Apraxia
Apraxia is defined as the inability to carry out a previously learned motor activity, despite normal function of all the component parts (muscles, nerves, joints, etc.).  For example, experiencing difficulty dressing or using a knife and fork, are often clues that apraxia is present.. Apraxia is a failure of the thinking parts of the brain to integrate all the information that is needed to perform previously learned motor activities. This happens even though the individual parts of the brain required to do the task may function normally. Alzheimer's disease affects the ability of the brain to understand how to perform motor tasks. Early in the disease, these can be complicated tasks such as hobbies that require fine motor movements. Another early manifestation of apraxia is problems with using the television remote control, or other functions that require relating numbers to activities.

A classical sign Sign
In medicine a sign is what a physician finds by examining a patient. For example, a patient with the symptom of pain might have signs of a fast heart rate, a pale face, a clammy touch and tenderness. of moderate dementia is dressing apraxia, which can be diagnosed when the caregiver says that the patient puts clothes on backwards, puts underwear on outside their clothes, or has trouble with buttons or zippers. It can be demonstrated at the end of the neurological Neurological
Relating to neurology. examination by handing the patient his shirt to put back on, having first turned a sleeve inside out. Normally, people quickly put the sleeve right, but someone with apraxia has difficulty doing that.

Alzheimer's disease damages areas the brain that organize the performance of motor sequences, including the very front part of the brain (pre-frontal motor cortex Cortex
The outer surface of the brain.) and the high sides of the brain (parietal lobes).