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2010 BC Guide in Determining Fitness to Drive

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Example: the temporary s<strong>to</strong>rage of <strong>in</strong>formation related <strong>to</strong> roadway sign<strong>in</strong>formation such as that related <strong>to</strong> freeway exits or construction areas;signs related <strong>to</strong> caution ahead, etc.Work<strong>in</strong>g memory (the active component of short-term memory)refers <strong>to</strong> the ability <strong>to</strong> manipulate <strong>in</strong>formation with timeconstra<strong>in</strong>ts/tak<strong>in</strong>g <strong>in</strong> and updat<strong>in</strong>g <strong>in</strong>formationExample: environmental <strong>in</strong>formation related <strong>to</strong> the driv<strong>in</strong>g task on a busyfreeway.Long-term memoryrefers <strong>to</strong> memory for personal events (au<strong>to</strong>biographical memory) andgeneral world knowledge (semantic memory). Long-term memorydiffers from short-term memory <strong>in</strong> a number of areas:o capacity – long-term memory has an unlimited capacitycompared <strong>to</strong> the limited capacity of short-term memory:o duration – <strong>in</strong>formation s<strong>to</strong>red <strong>in</strong> long-term memory is relativelystable for an <strong>in</strong>def<strong>in</strong>ite period of time. Information <strong>in</strong> shorttermmemory, on the other hand, is very fleet<strong>in</strong>g.Example: know<strong>in</strong>g your way from home <strong>to</strong> the grocery s<strong>to</strong>re; the mean<strong>in</strong>gof traffic signs; and know<strong>in</strong>g the rules of the road.Choice/complex reaction timerefers <strong>to</strong> the time taken <strong>to</strong> respond differentially <strong>to</strong> two or more stimulior events. The time taken <strong>to</strong> respond and the appropriateness of theresponse are important with<strong>in</strong> the driv<strong>in</strong>g contextExample: respond<strong>in</strong>g when a cat darts on<strong>to</strong> the edge of the road at thesame time a pedestrian steps on<strong>to</strong> the roadway.Track<strong>in</strong>gdef<strong>in</strong>ed as the ability <strong>to</strong> visually follow a stimulus that is mov<strong>in</strong>g orsequentially appear<strong>in</strong>g <strong>in</strong> different locationsExample: the ability <strong>to</strong> visually follow other cars on the road.Visuospatial abilitiesis a general category that refers <strong>to</strong> processes dependent on vision suchas the recognition of objects, the ability <strong>to</strong> mentally rotate objects,determ<strong>in</strong>ations of relationships between stimuli based on size or color.Example: understand<strong>in</strong>g where a tree and other objects are <strong>in</strong> relation <strong>to</strong>the car.Executive function<strong>in</strong>g (see also central executive function<strong>in</strong>g below)19

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