0
Just Noticeable Difference (JND)
The minimal difference that be detected between two similar stimuli is called the differential threshold, or just noticeable difference.
In the field of psychophysics, that branch of experimental psychology that studies sensation and perception, a jnd is the amount that something must be changed for the difference to be noticeable, defined to mean that the change is detectable half the time
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Is there Millennialism in the exclusive brethren?
John Nelson Darby (JND) was one of the early Plymouth Brethren. Born in 1800, he is the 'father of Dispensationalism'. As part of his theories, JND taught that there would be a pre-trib rapture of the saints. Following a huge row in the 1840's JND led the movement that evolved into today's Exclusive Brethren. JND's notes in the Schofield Bible popularized Millenialism and his Dispensational view of prophetic teaching. In other words, the answer is not only 'Yes' - the Plymouth/Exclusive Brethren are the root of Millennialism.
Thank you in Punjabi?
Tanva yahe vaad ji Shukriya - Thank You In Punjabi Tan Vad: Thanks you in Punjabi..
What is the ability to detect small changes of weak stimuli and large changes in stron stimuli?
Sounds like your talking about the JND (just noticeable difference)
Which is the least accurate measuring device?
Human estimation of quantities is usually pretty unreliable. There is an entity known by the psychologists as JND or just noticeable difference. This is approx 25%. If we are asked to match say two masses just using our sense of feel, then an agreement within 25% is to be expected. Similarly with heat and the brightness of a light.
Why do you use logarithm to calculate gain of amplifiers?
Audio engineers talk about the "JND", which stands for "just notiecable difference", which is a 3 decibel gain. That 3 decibel gain requires a doubling of amplifier power. For an amp to sound, subjectively, "twice as loud" requires a tenfold increase in power (300 watts instead of 30 watts).The decibel scale is logarithmic, not arithmetic.
Have they built a robot that can get pregnant?
Not yet, they are working on artificial wombs, cnn.com/videos/health/2017/04/26/lamb-artificial-womb-study-jnd-orig-vstan.cnn add in advancements in robotics - sexbots, and the Creepy AI citizen of Saudi Arabia that wants a robo kid, .com/tech/2017/11/27/first-ever-robot-citizen-wants-baby.html who knows how soon it will be.
What are the significance of Magellan's expidition to the Philippines?
Magellan "rediscovered" the Philippines. Magellan's main goal was to find the Spice Island, currently named Malaku Island. He accidentally "discovered" an island in Eastern Visayas, part of the Philippines, and was later killed in a neighboring island, Mactan. The significance of his expedition to find Spice Island was that he proved that the world is round.
3 letter words ending in d?
"kid", "dad", "lad", "red", "old", "aid", "odd", "sod", "tad", "nod", "lid", "dod", "kyd", "tod", "rad", "zed", "rod", "ted", "end", "sad", "bad", "god", "bod", "bed", "bid", "nad", "pad", "eld", "mod", "wed", "led", "oed", "urd", "hud", "mud", "hod", "pod", "dud", "mad", "rid", "wad", "amd", "edd", "std", "add", "ded", "fad", "dvd", "lcd", "pid", "igd", "iud", "pkd", "pud", "yid", "lsd", "scd", "qed", "rfd", "cud", "phd", "mbd", "wmd", "mrd", "fed", "ied", "qcd", "etd", "mid", "dmd", "rhd", "hnd", "med", "jnd", "lld" and "thd"
What is on the same circuit as the backup lights for the 2001 Sport Trac - the fuse keeps blowing?
On the same fuse is the daytime running lights, DTR sensor, rear defrost. BTW, did you ever find out what is causing it to blow?? Mine is doing the same thing and I don't have any idea what the cause is. If you know, email me back at jnd@aros.net so I can get mine fixed. Thanks it took a while for me to diagnose that issue on my 2001 sporttrac, but it seems that ford also placed the OD switch (on transmission gear selector on column) on this circuit and finding the wiring for that switch had chafed at the hinge point in that selector stalk (replaced fuse and played with selector with engine running, plastic off column and in the dark saw the spark. just wrapped with tape and all is good now.
How many humans eye colors are there?
The number of shades of gray that can be seen depends on the ambient light and the field of view. For example, I recently ran displaymate video software on a 15 inch diagonal DELL LCD monitor in a dark room. It displayed an image of 64 shades of gray. The video card limits the monitor to 256 gray shades. The monitor had a black and white luminance range from 0.12 to 100 cd/m^2 when set at a brightness level of 50. I was able to distinguish all 64 gray levels shown on the grayscale. The theoretical limit for the number of gray levels for this black and white luminance range listed above as determined by the DICOM grayscale is 465. The DICOM grayscale consists of an increasing gray luminance range from black to white. Each level is called a just noticeable difference (JND) because it is tested in a dark room by showing two gray levels with the same angle of view simultaneously while changing one gray level until it appears different to 50% of those tested. Changing The ambient light or the field of view will change the results. The DICOM gray scale is used for medical monitors with higher than normal luminance ranges to display x-rays.
What is the difference between absolute differential threshold?
ABSOLUTE THRESHOLD The smallest intensity of a stimulus that can reliably evoke a sensation. EXAMPLE THE IMPACT OF UPWARD PRICE MOVEMENTS ON DAILY HOUSEHOLD GOODS. THIS SHOWS THE IMPORTANCE OF MARKET SEGMENTATION AND THE ASSOCIATED PRICING POLICIES. ================================================== DIFFERENTIAL THRESHOLD. Difference Threshold: The 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. Then, I add tiny amounts of sand to your hand and ask you to tell me when you notice any change in the overall weight. As soon as you can detect any change in the weight, that difference between the weight of the sand before I added that last bit of sand and the amount of sand after I added it, is the difference threshold. How do marketers apply the concept of differential threshold or 'just noticeable difference' in their marketing strategy? Explain giving suitable examples. The concept of differential threshold is applied to almost all aspects of marketing strategies. 1.PRODUCTLINE EXTENSION. This concept is applied to the advertising/ promotion of the productline, in order to exploit the strength of the original brand. ------------------------------------------------------------------------------- 2.DISTRIBUTION CHANNELS The marketers' apply the concept of differential threshold in the selection of the distribution channels, for the various products from the same family productgroup. ----------------------------------------------------------------------------------------- 3.PRODUCT PRICING The marketers' apply the concept of differential threshold in the PRICING of the two brands from the same company --like two toothpaste brands from one company. ------------------------------------------------------------------------ 4.PRODUCT PROMOTIONS The marketers' apply the concept of differential threshold in the DEVELOPMENT/ IMPLEMENTATION of the sales promotion programs in two channels to maintain similarity / cost down. -------------------------------------------------------------------------- 5. PRODUCT PACKAGING The marketers' apply the concept of differential threshold in the PACKAGING of the various models of the company products / to create uniform image. ------------------------------------------------------------------------- 6. PRODUCT PERCEPTION/ IMAGE The marketers' apply the concept of differential threshold in the PRODUCT POSITIONING in more than one market segments. ------------------------------------------------------------------------------
What is the differences between the absolute threshold and the differential threshold Which is more important to marketers?
The absolute threshold is the minimum intensity of stimulus required to be perceived. In other words, it is the intensity amount which is needed to detect the difference between nothing and something. It is the lowest level at which an individual can experience a sensation.On the other hand, the minimal difference that can be detected between two stimuli is called the difference threshold or the j.n.d. (just noticeable difference)The main difference between the two concepts is that the differential threshold is a relative concept. Whereas the absolute threshold deals with whether or not a stimulus can be perceived, the differential threshold refers to the intensity difference needed between two stimuli before people can perceive that the stimuli are different.The marketing implication of absolute threshold is that consumers will only perceive a marketing stimulus when it is higher than absolute threshold. In other words, if images or words in a commercial are too small, consumer's sensory receptors will not ve activated and the stimulus will not be perceived. The differential threshold also has very important marketing applications Difference Threshold: The 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. Then, I add tiny amounts of sand to your hand and ask you to tell me when you notice any change in the overall weight. As soon as you can detect any change in the weight, that difference between the weight of the sand before I added that last bit of sand and the amount of sand after I added it, is the difference threshold.The absolute threshold is the minimum intensity of stimulus required to be perceived. In other words, it is the intensity amount which is needed to detect the difference between nothing and something. It is the lowest level at which an individual can experience a sensation.On the other hand, the minimal difference that can be detected between two stimuli is called the difference threshold or the j.n.d. (just noticeable difference)The main difference between the two concepts is that the differential threshold is a relative concept. Whereas the absolute threshold deals with whether or not a stimulus can be perceived, the differential threshold refers to the intensity difference needed between two stimuli before people can perceive that the stimuli are different.The marketing implication of absolute threshold is that consumers will only perceive a marketing stimulus when it is higher than absolute threshold. In other words, if images or words in a commercial are too small, consumer's sensory receptors will not ve activated and the stimulus will not be perceived. The differential threshold also has very important marketing applications
