ISO is the sensitivity of your sensor to light. The ISO setting you use depends on the amount of light in the scene you are photographing. The more light you have to work with the lower you can set your ISO.
Each side of your brain contains four lobes. The frontal lobe is important for cognitive functions and decision-making. The parietal lobe processes information about temperature, taste, touch and movement, and spatial orientation. The occipital lobe is primarily responsible for vision.
These lobes allow a person to tell one smell from another and one sound from another. They also help in sorting new information and are believed to be responsible for short-term memory. Right Lobe - Mainly involved in visual memory (i.e., memory for pictures and faces). Left Lobe - Mainly involved in verbal memory (i.e., memory for words and names).