Mental Chronometry Definition
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Mental chronometry definition Continue MENTAL CHRONOMETRY, ATTENTION, AND LANGUAGE PERFORMANCE Some historical themes Of distraction during the emergence of stimulus are always punished by the procrastination process-Donders (1868) The term mental chronometry refers to an experimental approach that examines the time it takes for mental surgeries to gain an understanding of human attention, perception, cognition and action. , 1978, Chronometric Research of the Mind, Earlbaum, Hillsdale, New Jersey, p. 7). Common methods are response time measurements (RT) associated with events of the brain's electrical capabilities and eye movements. The measurement of the RIT (i.e. the time between the beginning of the stimulus and the beginning of the reaction to this stimulus) began with the work of the Dutchman F.K. Donders in the 1860s. Until that time, it was thought that mental processes, following Johannes Mueller, were too fast to be measurable. The exact measurement of RTs was made possible by a number of inventions in the 1840s, including the Englishman Charles Wheatstone and the Swiss watchmaker Mathias Hipp (Hipp chronoscope Chrono). Since the 1870s, Wilhelm Wundt has been involved in the development of a research program aimed at understanding human mental processes by measuring RTs. James McKin Cattell, a Wundt student in Leipzig, estimated about half of the experiments in the Wundt laboratory involved RT measurements. Wundt's laboratory in Leipzig has become a model for laboratories of scientific psychology around the world. Wundt's perseverance in precision measurements has influenced the development of psychological experiments to date. Titchener's photo album: Photos and handwritten descriptions of instruments that were specially made for psychological research (some of the instruments were from Cattell) can be found in the album of photographs by Titchener, also a student of Wundt in Leipzig. Some of the tools were developed for RT research. Since his time in Leipzig, Titchener has been collecting trade catalogues, which he has linked to more than 40 volumes. These catalogues were sold to Rice University shortly after Titchener's death in 1927. Unfortunately, the collection of catalogues was thrown out in the 1970s, but three volumes survived. One of the three surviving volumes was an album of photographs. Titchener put the album together sometime between 1894 and 1899. The Museum of Reaction Time History documents many aspects of the history of mental chronometry. It provides many downloadable descriptions and photographs of a wide range of tools used by psychologists in the early days of experimental psychology. The Max Planck Virtual Laboratory of the Max Planck Institute for the History of Science in Berlin is dedicated to the history of experiments in life It provides detailed information about Helmholtz's physiological experiments on frogs and humans in the 1850s, which inspired F.K. Donders to conduct his founding research with RT fifteen years later. In addition to measuring RTs, chronometric studies can study eye movements. Donders was not only the first person to measure the name RTs, but he also developed models for eye movements. Wundt took the sights to be a window into the work of the attention system. As Wundt (1897) reasoned in its outlines of psychology, visual acuity is best at the center of eye fixation (at 5 degrees from the center, the sharpness decreased by about 50 percent). Therefore, to draw attention to aspects of the visual world, eye fixation is directed at those visual aspects that are of interest. This makes the shift of gaze between the two visual stimuli an open sign of attention orientation, although attention and eye movements can sometimes be disconnected in the simple tasks of signal detection and identification. F. K. Donders Franciscus Cornelis (France) Donders was born on May 27, 1818, in Tilburg, North Brabent, the Netherlands (the same area where Vincent van Gogh was born 35 years later). The Donders went to the seminary in Tilburg and Boxmeer (about 35 km south of Nijmegen) and to the medical school in Utrecht. For the rest of his academic career (from the age of 29), he was a professor of physiology at the University of Utrecht. The house where Donders was born, Nieuwlandstraat 44 in Tilburg. The plate above the door of the Dutch poet Nikolaas Betts says: Op den 27sten van bloeimaand des jaar O.H. MDCCC-XVIII werd Franciscus Cornelis Donders in deze won geboren (27th flowering month of the year O.H. MDCCC-XVIII, Franciscus Cornelis Donders was born in this house). Donders was one of the pioneers of ophthalmology. In 1858, Donders founded the first eye hospital in the Netherlands. In 1864, his influential 635-page book On The Anomalies of Placement and Refraction of the Eye with a preliminary essay on physiological dioptria was published in English. It describes employment and prescription corrective glasses. Ophthalmicroscope Donderov (left), isoscope to identify visible vertical and horizontal meridians in downward gaze and convergence (middle), as well as a demonstration model of eye movement (right). The interests of the Donders included not only eye physiology, eye movements (he discovered what became known as the Donder Act), color vision and color blindness, but also general physiology, evolution and mental processes. His views are often strikingly modern. For example, he researched cerebral circulation in 1849 and was excited by the discovery of brain metabolism: As in all organs, blood changes as a result of brain nuys (Donders, 1868). One discovers in comparison incoming and outflow of blood that oxygen is consumed (Donders, 1868). This understanding, together with the subtraction method developed by Donders, forms the basis of two widely used modern functional methods of neuroimaging, PET and MRI. Donders was also interested in speech. In 1864, he published an article about his conclusion that vowels are characterized by their fixed subtext (now called foryants), regardless of the fundamental tone of the voice (i.e. the fundamental frequency). In his monograph De physiologie der spraakklanken, in het bijzonder van die der Nederlandsche taal (Physiology of speech sounds, in particular, Dutch) (Donders, 1870), he detailed the acoustic and phonetic properties of (Dutch) speech sounds and how they are formulated. Clockwise from top to bottom: Donders during his inauguration in Utrecht, one of his mechanical models of eye movements, his lab outside, and from the inside. A photo of a room in Donders' lab was taken shortly after his death. In the back corner on the left is a kimographer, which Donders used for his phonetic research; a modified version of the cymograph was used in his chronometric work (i.e. to measure speech production). Donders realized that the mind is not the brain, but what the brain does. As for mental phenomena, the connection between these phenomena and the action of the brain should be investigated, trying to find as much as possible different mental abilities (Donders, 1868). However, full knowledge of the functioning of the brain with which each mental process is associated does not take us one step further in understanding the nature of their relationship (Donders, 1868). Donders lacked the theoretical apparatus to accurately flesh out mental processes (computational theory of the mind and its modeling tools, which he would have needed in the first half of the 20th century for development), but he found another pen to mental processes, response time: But will there be no question of quantitative treatment of mental processes? No way! An important factor seemed to be receptive to measurement: I mean the time it takes for simple mental processes (Donders, 1868). Tools developed by F.K. Donders to determine the duration of mind action (upper figure: noematachograph and phonoutograph as he called them) and determine as soon as possible the time for simple thought (bottom left: the initial version of the noematachometer, which controlled the presentation of stimuli; middle: the final version of the Noematachometer; on the right). To measure the speed of mental processes, Donders developed a number of tools (above), some of which were made in a special section of his lab by a mechanic (see photo below), a student and a friend of the Donders. The work of the tools is described in Twee werktuigen tot bepaling van den tijd, voor psychische processen benoodigd (Two tools for determining the time needed for mental processes) that appeared in Onderzoekigen gedaan in het Physiologisch Laboratorium Utrecht, 1867-1868, 2, 21-25. Donders was the first person to measure the time it takes to call stimuli conversational responses. One way to achieve this was to use the nomatachograph and phosautographer as follows. Two participants A and B were sitting in front of the mouth of the photonautographer. While the cylinder was spinning, A pronounced syllable and B had to repeat it as quickly as possible without making mistakes. The onset of oscillations caused by two sounds was observed on paper (illustrated below) by points A and B on the line (P). The time interval between the two points was derived from vibrations (261 per second) of the tuning fork recorded simultaneously (S). RT was detected by counting the number of oscillations recorded between a and b, regardless of their length (i.e. a constant rotational speed of the cyclinder is required). I came up with the idea to interfere in the process of physiological time with some new components of mental action. If I had researched how much it would lengthen the physiological time, this, I decided, would reveal the time it takes for the term to intervene (Donders, 1868). Prior to work, Donders was generally thought to have mental operations associated with responding to the stimulus occurred too quickly to be measurable. Donder developed a subtraction method to measure the duration of the different mental processes through which the brain performs various tasks.