Final answer:
After sustaining a head injury, Mayim is having trouble with tasks that involve procedural memory and fine motor skills, indicating potential damage to brain areas like the basal ganglia and cerebellum associated with these functions.
Step-by-step explanation:
The question concerns the effects of a head injury on an individual's cognitive and motor functions. When Mayim fell on an icy sidewalk and sustained a head injury, she began to experience difficulty with tasks that require both cognitive and fine motor skills, such as remembering how to play her flute, entering text on her cell phone, and tying her shoelaces. This indicates that the injury likely affected parts of her brain involved in memory, as well as the coordination of complex motor tasks.
Remembering how to perform familiar tasks, like playing an instrument or typing, often involves procedural memory, which is primarily associated with the basal ganglia and cerebellum. Coordination of movement is largely a function of motor cortex and cerebellum. Given the array of difficulties Mayim is facing, it is possible that her injury impacted these areas, leading to what is commonly referred to as neurological impairments affecting procedural memory and motor control.