Generic Norvasc (Amlodipine, Norvasc® equivalent)
Amlodipine is in a class of medications called calcium channel blockers. Amlodipine widens the blood vessels, making it easier for the heart to pump and reducing its workload. Amlodipine is used to treat hypertension (high blood pressure) and to treat angina (chest pain). Amlodipine may also be used for purposes other than those listed in this medication guide.
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10mg
| Quantity | Price | Price per pill | Returning customer price | Bonus | |
|---|---|---|---|---|---|
| 10 | € 36.66 | € 3.67 | € 32.76 | ---- | Add to cart |
| 20 | € 39.00 | € 1.95 | € 35.10 | ---- | Add to cart |
| 30 | € 41.34 | € 1.38 | € 36.66 | ---- | Add to cart |
Drug Medical Information
AGE AND BEHAVIOR: SLOW RESPONSE TO ENVIRONMENTAL STIMULATION - COMPLEX STIMULI AND RESPONSES - CHOICE RT - Brief versus Long Duration Stimuli
Early in the present chapter, and in chapter 8, a study was described where vertical bars, two at a time, were presented to young adult and elderly subjects. One bar was shorter than the other and the subject had to tell which one it was, the right or the left. There were two conditions of measurement, one with a long stimulus exposure and one with a very brief exposure. When the stimulus exposure was of long duration, the old were differentially slow in making the difficult stimulus discriminations, but with the brief exposure, the old were not differentially slow (Botwinick, Brinley, and Robbin, 1958). It was concluded that the old may be more cautious than the young in that they seem to take more time than necessary to make the difficult discriminations.
Welford (1960) subjected these data to an information theory (logarithm) analysis and concluded that perceptual discrimination time, in common with choice reaction time, slows with age but not disproportionately—the rate of slowing with perceptual difficulty and choice RT is established by the general slowing with age. It seems that it is only when the older person has time to review the stimulus, and personality factors are thus allowed to modify the time required to make discriminations and choice, that he shows unique slowing over and beyond simple RT.
Stimulus exposure duration is thus seen as an important factor in choice RT and, unless it is systematically varied, it may not be clear whether the increased slowing with age in relation to increased RT complexity is disproportionate or not. For example, Suci, Davidoff, and Surwillo (1960), unlike Welford, reported disproportionate slowing with age as the number of choices in the RT task were increased. But they permitted up to 5 seconds for a response, during which time the stimulus was exposed. This is quite a long stimulus exposure duration and perhaps these data might reflect the same processes as those inferred from the data of Botwinick et al. (1958). There was one study in which the stimulus exposure duration was varied, just for the purpose of testing the hypothesis of disproportionality with long exposures and not with short ones (Griew, 1959). It was concluded from this study that the hypothesis is tenable.
*229\220\8*
