Postadaptation

evolutionary changes of organisms that improve a species’ adaptation to an already familiar habitat or that improve a function of an organ.

Postadaptation is contrasted to preadaptation, which is a chance side effect of postadaptation and which prepares an organ for new functions or an organism for adaptation to new environmental conditions. Thus, preadaptation of an organism to a new environment or of an organ to a new function is based on post-adaptation to the previous environment or to the previous function of the organ.

Both postadaptation and preadaptation are controlled by the process of natural selection; postadaptation is its immediate result, while preadaptation is an indirect and chance consequence.

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Preadaptation

References in periodicals archive ?

Each test condition consisted of three test periods, including baseline (1 min), adaptation period (7 min), and postadaptation period (2 min).

In contrast, a negative error indicated that the magnitude during the adaptation or postadaptation periods was smaller than during baseline.

To determine whether a particular resistance load condition induced an aftereffect, we compared the magnitude of the first stride during the postadaptation period and the baseline of each variable measured.

Aftereffect in Spatial and Temporal Gait Parameters During First Stride of Postadaptation Period: Loaded Leg

Compared with baseline, the stride length observed during the first stride of the postadaptation period significantly increased in the light- (baseline = 55.

Compared with baseline, the swing time observed during the first stride of the postadaptation period increased slightly in the light(baseline = 33.

Figure 4 shows the stride length from one subject during the first 30 strides of the postadaptation period and the [CI.

Size of kinematic error affects retention of locomotor adaptation in human spinal cord injury

Of the physiologic measures, only skin conductance was a consistent indicator of adaptation and response to challenge substances postadaptation.

Physiologic and symptomatic responses to low-level substances in individuals with and without chemical sensitivities: a randomized controlled blinded pilot booth study

This robust postadaptation retention was present in all subjects in both groups and may suggest some form of STML (see "Discussion").

48 hours) postadaptation aftereffects (retention), thereby limiting their scope in examining ML at the LL.

The robust postadaptation aftereffects (retention) in all the motor performance gains at 48 hours may suggest some form of rapid, short-term ankle ML, but its exact nature or underlying mechanism (e.

Also, by restricting training to a single visit, we cannot ascertain whether STMA and postadaptation aftereffects continue beyond the 48-hour time period, i.

Short-term ankle motor performance with ankle robotics training in chronic hemiparetic stroke