|
|
Ontogeny of personality or repeatability in behavioral and cognitive tests
Pšeničková, Eliška ; Landová, Eva (advisor) ; Sedláček, František (referee)
Individual stability is important for the development of personality, and above all two patterns of consistency - structural and differential. The main goal of this diploma thesis was to monitor changes in the repeatability of behavior over time (i.e., differential consistency) during ontogenesis and to compare the consistency of selected elements of behavior in behavioral tests and a selected cognitive test. Testing of a model species of squamate reptile, the common leopard gecko (Eublepharis macularius), in standard behavioral tests and in a selected cognitive test across ontogenesis over three life stages (juvenile, subadult and adult phase) showed, after statistical examination, high estimates of repeatability and significant influence of ontogenetic phase. Behavioral consistency between juveniles and adults could increase or decrease for certain behaviors or remain consistent in only one phase of life. In the subadult period, the behavior was generally inconsistent, except for vocalization in the reactivity test, where it was demonstrated by high estimates of repeatability. The aim of testing in the selected cognitive test was to determine the non-cognitive component of variability, which could be explained by different personalities. Yet, cognitive styles associated with personality have not...
|
|
|
Ontogeny of animal personality
Pšeničková, Eliška ; Landová, Eva (advisor) ; Sedláček, František (referee)
Personality, consistent differences among individuals in their behaviour across time and contexts is a popular topic that is being addressed in a large number of studies. However, there are not many studies describing the development of personality over a longer period of time. The most relevant factors for development are: mean-level consistency (also called normative consistency), differential consistency (also called repeatability), structural consistency, and individual stability. Personality is generally more plastic in juveniles, where behavior is often more intense, in the sense that they are bolder, more aggressive/active/explorative, and over time, as individuals mature, plasticity and intensity of behavior decreases. Adolescence is a period in which behavior is often restructured and thus is not stable and consistent at this life-stage. However, behavior does not necessarily change during ontogeny, it may remain unchanged, or the intensity of behavior may also increase with age. Selected models describing the ontogeny of the animal personality are not sufficient and new ones need to be formulated. These should include more variables, for example genetic or maternal factors. This work is a review of studies about ontogeny of animal personality. KEY WORDS: Personality, ontogeny,...
|
guest ::
