A file extension is the set of three or four characters at the end of a filename; in this case, .obj. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically.
A sensory threshold is the level of strength a stimulus must reach to be detected. Psychologists study sensory thresholds to learn how humans and animals process sensory information.An absolute threshold is the lowest level of strength necessary for detection.For example, when sounds are just loud enough to hear (but no louder), they occur at the absolute threshold.Absolute thresholds vary according to sensory adaptation (diminished sensitivity to stimulus after prolonged exposure).Animals often have different absolute thresholds than people. The differential threshold is the point of lowest intensity at which one can tell that a stimulus has strengthened.n absolute threshold is the lowest level of strength necessary for detection. For example, when sounds are just loud enough to hear (but no louder), they occur at the absolute threshold. Absolute thresholds vary according to sensory adaptation (diminished sensitivity to stimulus after prolonged exposure).
Anaerobic Threshold (AT) was a term applied to the lactate inflection point, or the point at which the appearance of lactate in the blood accumulates faster that its rate of use.entilation increases at about the same rate as oxygen consumption up to about 50-70% of VO2max (depending on one's trained level). At this point (just beyond the ventilatory threshold) ventilation increases exponentially. Some researchers have identified two ventilatory thresholds.