The Role of hand and tool-use in the evolution of human cognition

Yiğit, Duygu
The hand is a defining element of the human kind which has been transformed during the evolutionary developments. The most important feature of the hand is the proficient tool-use. Two questions become central in the present work: has the dexterous hand changed the human mind and if so, in what ways?


Güçlü, Necla; Hoşgör, Hatice Ayşe; Department of Gender and Women's Studies (2021-9)
In our contemporary world, the definition of biomedical aging is the dominant and widespread discourse in the construction of age identity. The biomedical model sees menopause as a starting point for the aging process of women. The aging process is based on the body, which loses its functionality and begins to decline. In that sense, the decreasing hormone levels during menopause make women more vulnerable as a biological destiny. However, recent research claims that menopause experiences are not universal ...
Investigation of control of human balance-recovery reactions
Bilgin, Nurdan; Özgören, Mustafa Kemal; Department of Mechanical Engineering (2015)
In this study, a natural control law has been conjectured, which is assumed to be applied by the central nervous system of a human being in order to maintain the erect posture after being exposed to a suddenly occurring impulsive disturbance. The control law is conjectured as PD (proportional-derivative) control, because it has to be compatible with the physiological facts. The conjectured control law has been validated by comparing a set of experimental results with the corresponding set of simulation resu...
An assessment of the status of the multiple realizability thesis in cognitive science
Baysan, Emin Umut; Temürcü, Ceyhan; Department of Cognitive Sciences (2011)
It has been argued that there are physically different ways of instantiating mental properties, the nature of which is the subject matter of cognitive science. This claim has been known as the Multiple Realizability Thesis (MRT). It has been suggested that the MRT shows that a reduction of mental properties to physical properties is impossible, as there cannot be one-to-one correspondences of mental properties to the properties of the brain. Moreover, it has been argued that the latter point shows that phys...
The Psychometric Validity and Reliability of the Turkish Version of the Existential Loneliness Questionnaire
Gokdemir-Bulut, B. P.; Bozo Özen, Özlem (2018-03-01)
Loneliness is accepted as a universal concept but it is still controversial in terms of its source and nature. Existential loneliness, a primary and inevitable condition of human existence as the only certain thing is death, was described as intolerable emptiness, sadness, and longing due to the awareness of one's fundemental separtenes as a human being. The Existential Loneliness Questionnaire (ELQ) was particularly developed to assess existential loneliness. The objective of the current study was to exami...
Human brain evolution: transcripts, metabolites and their regulators
Somel, Mehmet; Khaitovich, Philipp (2013-02-01)
What evolutionary events led to the emergence of human cognition? Although the genetic differences separating modern humans from both non-human primates (for example, chimpanzees) and archaic hominins (Neanderthals and Denisovans) are known, linking human-specific mutations to the cognitive phenotype remains a challenge. One strategy is to focus on human-specific changes at the level of intermediate phenotypes, such as gene expression and metabolism, in conjunction with evolutionary changes in gene regulati...
Citation Formats
D. Yiğit, “The Role of hand and tool-use in the evolution of human cognition,” M.S. - Master of Science, Middle East Technical University, 2016.