15 Search Results
-
Absolute Threshold definition | Psychology Glossary | AlleyDog.com
Psychology GlossaryThis is a term that many students have a difficult time understanding, but it's not as complex as it might seem. One formal definition is that absolute threshold is the smallest intensity of a stimulus that has to be present for the stimulus to be detected. Let's use an example to clear this up. Think of an electric burner on a ... Read more
-
Absolute Threshold, Difference Threshold, and Weber's Law - Video
Absolute Threshold, Difference Threshold And Weber's Law Sensation and Perception Videos Read more
-
Difference Threshold definition | Psychology Glossary | AlleyDog.com
Psychology GlossaryThe difference threshold, also known as the just noticeable difference (jnd), is the minimum difference in stimulation that a person can detect 50 percent of the time. We experience the difference threshold as a just noticeable difference. For example, let's say I asked you to put your hand out and in it I placed a pile of sand.... Read more
-
Stimulus Threshold definition | Psychology Glossary | AlleyDog.com
Psychology GlossaryStimulus Threshold refers to the minimum intensity required from a stimulus to produce a response from a human or an animal. It is also the point where a human or an animal first senses and responds to a stimulus. For example, imagine someone puts sand in the palm of your hand, one grain at a time. You may not notice the sand un... Read more
-
Threshold definition | Psychology Glossary | AlleyDog.com
Psychology GlossaryThe term "threshold" has a couple of different meanings, but let's start with the simple one. A threshold is the minimum amount of stimulation needed to start a neural impulse (you know, the electrical impulses that travel throughout your body carrying important information). There is a very scientific explanation to this that i... Read more
-
Excitation Threshold definition | Psychology Glossary | AlleyDog.com
Psychology GlossaryThe excitation threshold refers to the level of neural depolarization that is necessary to generate an action potential. In simpler terms, this means the level of excitation (through neuro-chemical stimulation) that is needed for a muscle to react appropriately to a stimulus. For instance, when a person hears a loud noise the bo... Read more
-
Absolute Error definition | Psychology Glossary | AlleyDog.com
Psychology GlossaryIn statistics, absolute error is essentially a measurement of how much error is present in your calculations. Absolute error is the difference between the actual measured value and the true, accurate value. For example, if you weigh your dog on a scale and the scale says 30 pounds but you know definitively your dog weighs 27 pou... Read more
-
Absolute Thinking definition | Psychology Glossary | AlleyDog.com
Psychology GlossaryAbsolute thinking, sometime called absolutist thinking, refers to the cognitively detrimental habit of describing feeling and circumstances in concrete, absolute terms. An example would be someone using "I am totally devastated," or "My life is completely destroyed" to describe situations that are difficult to deal with. This co... Read more
-
Absolute Zero definition | Psychology Glossary | AlleyDog.com
Psychology GlossaryAbsolute zero is the presence of a true zero on a number scale. A scale with absolute zero is the most informative and accurate scale to use for measurement, but only a ratio scale has an absolute zero. For example, when counting money, $10 is twice the amount of $5, and $0 is the complete absence of money. So money can be measu... Read more
-
Absolute definition | Psychology Glossary | AlleyDog.com
Psychology GlossaryThe term absolute is a modifier that when attached to another term indicates the extreme edge or end of that other term. An example is absolute zero which indicates the point at which molecular movement completely ceases and the lowest possible temperature where nothing can be any colder (no heat energy exists). Absolute acuity ... Read more
-
Absolute Limen definition | Psychology Glossary | AlleyDog.com
Psychology GlossarySee Absolute Threshold. Get the word of the day delivered to your inbox é 1998- , AlleyDog.com. All material within this site is the property of AlleyDog.com. This material may not be reprinted or copied for any reason without the express written consent of AlleyDog.com. Privacy Policy - Terms of Service Read more
-
Absolute Visual Acuity definition | Psychology Glossary | AlleyDog.com
Psychology GlossaryAbsolute visual acuity is the lowest frequency level (or threshold) that an individual's senses can register. This can be as low as a level of unconscious processing (ultraviolet) but is most commonly is with the realm of conscious self-report. As as example, at twilight (morning or evening) as the natural light levels increase ... Read more
-
Absolute Acuity definition | Psychology Glossary | AlleyDog.com
Psychology GlossaryAbsolute acuity refers to the lowest point at which a stimulus can be recognized. For instance, when taking a hearing test the patient is subjected to tones of many frequencies and volume levels. The tones are presented to the patient starting with the vary faint and gradually becoming louder. The patient is instructed to signal... Read more
-
Absolute Scale definition | Psychology Glossary | AlleyDog.com
Psychology GlossaryAn absolute scale is a system of measurement that starts at a minimum point and the progresses in only one direction. The most common example of this is the Kelvin scale that measures ambient temperature from absolute zero (the point at which molecules no longer vibrate) and proceeds upwards into infinity. Get the word of the da... Read more
-
Absolute Judgement definition | Psychology Glossary | AlleyDog.com
Psychology GlossaryAbsolute judgement method, as used in psychophysics, refers to a procedure in which judgements (of either people, things, or circumstances) are made without the use of any explicit standards for comparison. As humans we often make judgements about things and people without the use of any externally established scale or standards... Read more