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human ethology : ウィキペディア英語版
human ethology

Ethology is concerned with the evolutionary significance of an animal's behaviors in its natural environment. Broadly speaking, ethology focuses on behavior processes across species rather than focusing on the behaviors of one animal group. Ethology as a discipline is generally thought of as a sub-category of biology, though psychological theories have sprung up based on ethological ideas (e.g. sociobiology, evolutionary psychology, attachment theory, and theories about gender differences, incest avoidance, mourning, hierarchy and pursuit of possession). Human ethology focuses on the evolutionary and adaptive significance of human behavior (frequently comparing it to other species' behavior).
==History==
Ethology has its roots in the study of evolution, especially after evolution's increasing popularity after Darwin's detailed observations. It became a distinct discipline in the 1930s with zoologists Konrad Lorenz and Niko Tinbergen. They rejected theories that relied on stimuli and learning alone, and elaborated on concepts that had not been well-understood, such as instinct. They promoted the theory that evolution had placed within creatures innate abilities and responses to certain stimuli that advanced the thriving of the species. They and another ethologist, Karl von Frisch, received a Nobel Prize in 1973, for their overarching career discoveries concerning organization and elicitation of individual and social behavior patterns.
Many developmental psychologists were eager to incorporate ethological principles into their theories as a way of explaining observable phenomenon in babies that could not necessarily be explained by learning or other concepts. John Bowlby and Mary Ainsworth used ethology prominently to explain aspects of infant-caretaker‍‍ attachment theory‍‍ (Ainsworth & Bowlby, 1991). Some important attachment concepts related to evolution:
* Attachment has evolved because it promotes the survival of helpless infants. Primates and other animals reflexively attach themselves physically to their parent, and have some calls that elicit parental attention. Human babies have adaptively developed signaling mechanisms such as crying, babbling, and smiling. These are seen as innate and not learned behaviors, because even children born blind and deaf begin to smile socially at 6 weeks, and cry and babble. These behaviors facilitate contact with the caregiver and increase the likelihood of infant survival.
* Early signaling behaviors and the baby's tendency to look at faces rather than objects lead to attachment between the caretaker and baby that solidifies around 6–9 months of age. Bowlby theorized that this attachment was evolutionarily fundamental to human survival and is the basis for all relationships, even into adulthood.
* Adults are also adaptively bent toward attachment with infants. Typical "baby-ish" features, such as a large head and eyes in proportion to the body, and round cheeks, are features that elicit affection in adults. Many parents also form a "bond" with their newborn baby within hours of its birth, leading to a deep sense of emotional attachment with one's own offspring and increased behaviors that promote infant survival.

* Many of Bowlby's early methods relied heavily on ethological observations of children in their natural environments.
In later years, ethology played a large role in sociobiological theory and ultimately, in evolutionary psychology, which is a relatively new field of study. Evolutionary psychology combines ethology, primatology, anthropology, and other fields to study modern human behavior in relation to adaptive ancestral human behaviors.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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