Hashim, a 69-year-old, makes errors while performing tasks. He is unable to detect and correct the errors. He is also unable to deal effectively with difficult or novel circumstances. Given this information, it can be said that:

Question:

The options are;

A. Hashim's selective attention has increased.

B. Hashim's brain receives increased supplies of blood.

C. Hashim has deficiencies in executive attention.

D. Hashim has high blood pressure.

The correct option is;

C. Hashim has deficiencies in executive attention.

Explanation:

Executive attention is the brain function that permits the setting of priorities of relevant observations from irrelevant observations, such that competing attention requiring observations can be resolved. The process of executive attention can be shown in mental exercises where the subject, based on his will, tries to redirect observed sensation, by making more important non-emotional features.

Executive attention enables the brain to focus and to isolate events thereby aiding in problem solving.

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia

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