Implementing communication between Windows PCs and test equipment using RS-232 and Borland C+ + Builder

Monteiro, Axel; Jordan, Timothy R.

doi:10.3758/bf03195556

Cited by 3 publications

(4 citation statements)

References 7 publications

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“…This combination of head clamping and eye-tracker clamping allowed accurate and consistent measurement of fixation location to within 7 min of arc. Input conversion time was approximately 25 μs (for further details of this procedure see Monteiro & Jordan, 2004; Patching & Jordan, 1998). The other computer (Display/Response PC) presented stimuli by controlling a Sony DSR20 digital tape deck connected directly to a Sony PVM-205NE 20-in.…”

Section: Methodsmentioning

confidence: 99%

“…In light of these issues, the present study investigated hemispheric asymmetries in speechreading performance using lateralized displays of natural visual speech, controlled for retinal eccentricity and facial asymmetry. We used a recently developed automated eye-tracking technique for video displays (Monteiro & Jordan, 2004) in which fixation monitoring, stimulus presentation, and response collection were controlled by two interlinked computers. Most importantly, stimuli were projected to each hemisphere only when participants were fixating centrally, thus enabling the retinal eccentricity at which stimuli were presented to be controlled precisely.…”

Section: Facial Asymmetrymentioning

confidence: 99%

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Hemiface contributions to hemispheric dominance in visual speech perception.

Jordan¹,

Thomas²

2007

Neuropsychology

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Lateralized displays are used widely to investigate hemispheric asymmetry in language perception. However, few studies have used lateralized displays to investigate hemispheric asymmetry in visual speech perception, and those that have yielded mixed results. This issue was investigated in the current study by presenting visual speech to either the left hemisphere (LH) or the right hemisphere (RH) using the face as recorded (normal), a mirror image of the normal face (reversed), and chimeric displays constructed by duplicating and reversing just one hemiface (left or right) to form symmetrical images (left-duplicated, right-duplicated). The projection of displays to each hemisphere was controlled precisely by an automated eye-tracking technique. Visual speech perception showed the same, clear LH advantage for normal and reversed displays, a greater LH advantage for right-duplicated displays, and no hemispheric difference for left-duplicated displays. Of particular note is that perception of LH displays was affected greatly by the presence of right-hemiface information, whereas perception of RH displays was unaffected by changes in hemiface content. Thus, when investigated under precise viewing conditions, the indications are not only that the dominant processes of visual speech perception are located in the LH but that these processes are uniquely sensitive to right-hemiface information.

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Section: Methodsmentioning

confidence: 99%

Section: Facial Asymmetrymentioning

confidence: 99%

Hemiface contributions to hemispheric dominance in visual speech perception.

Jordan¹,

Thomas²

2007

Neuropsychology

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“…The eye tracker was clamped to each participant’s head, which in turn was clamped in a head brace throughout the experiment to prevent head movements. This arrangement allowed accurate and consistent measurement of fixation location in the experiment (for further details, see [16] , [32] , [61] , [62] ). The output of the tracker was recorded through the ADC input of the VSG2/5 card, which also controlled the visual display.…”

Section: Methodsmentioning

confidence: 99%

Visual Speech Perception in Foveal and Extrafoveal Vision: Further Implications for Divisions in Hemispheric Projections

et al. 2014

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When observing a talking face, it has often been argued that visual speech to the left and right of fixation may produce differences in performance due to divided projections to the two cerebral hemispheres. However, while it seems likely that such a division in hemispheric projections exists for areas away from fixation, the nature and existence of a functional division in visual speech perception at the foveal midline remains to be determined. We investigated this issue by presenting visual speech in matched hemiface displays to the left and right of a central fixation point, either exactly abutting the foveal midline or else located away from the midline in extrafoveal vision. The location of displays relative to the foveal midline was controlled precisely using an automated, gaze-contingent eye-tracking procedure. Visual speech perception showed a clear right hemifield advantage when presented in extrafoveal locations but no hemifield advantage (left or right) when presented abutting the foveal midline. Thus, while visual speech observed in extrafoveal vision appears to benefit from unilateral projections to left-hemisphere processes, no evidence was obtained to indicate that a functional division exists when visual speech is observed around the point of fixation. Implications of these findings for understanding visual speech perception and the nature of functional divisions in hemispheric projection are discussed.

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“…13,14 The RS232 is a standard for asynchronous serial data communications between personal computers and external devices.…”

Section: Description Of the Implemented Systemmentioning

confidence: 99%

Implementation of a Virtual Private Network-Based Laboratory Information System Serving a Rural Area in Turkey

Turhan

Kayıkçıoğlu

2006

Lab Med

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FeatureI n many developing countries, including Turkey, many factors hinder access to quality and affordable health care for people who live in rural areas. 1 These factors include severe geographic and weather conditions, a shortage of doctors and other health care professionals, distance between patients and health facilities, and long turnaround times (TAT) for completing and reporting laboratory results. Consequently, patients who live in rural areas mostly prefer to visit the primary hospitals, even if they live far from them and they have to pay for a tiring and expensive trip. Furthermore, this increases the work load of the primary hospitals. For countries with limited medical expertise and resources, a meaningful and economical integration of communications, information, and medical technologies will reduce the problems no matter where the patient lives. Telemedicine offers the potential to address these concerns and to save the patient extra costs that are associated with treatment, such as travel and other living expenses. 1 There are many telemedicine applications, such as teleradiology, telecardiology, telepathology, mental health, electronic medical records, and laboratory information systems (LIS).Clinical laboratories play a crucial role (70%) in clinical decisions (admittance, discharge, diagnosis, and therapy), and measures taken to counteract economic problems are directed towards consolidating laboratories, and developing a network among hospitals, territories, and centralized laboratories. 2 As a limited number of advanced laboratories are available at central hospitals or central laboratories in big cities, designing a Virtual Private Network (VPN)-based LIS becomes urgent. In such telemedicine applications, blood specimens from patients are sent to those laboratories for analysis. The results are stored in a single database and become electronically available for all health institutions within the network. Based on the stored data, many applications (such as decision support models, care management, automated remainders, and alerts for selection of dosing of medication) can be developed.In this study, we describe a VPN-based LIS to serve remote-entry test orders and to access the results of clinical analyzers, with the aim of significantly reducing TATs for laboratory services in rural areas. The system was implemented for clinical laboratory services [such as managing ELISAs, complete blood counts (CBCs), and biochemistry tests] that were ordered from 13 different primary health care units in Gumushane's rural areas in Turkey. With this implementation, 2 laboratories in this region-Gumushane Center Laboratory (GCL) and Kelkit Center Laboratory (KCL)-were converted to rapid response laboratories. Currently, the results of blood specimens are reported to primary health care units that have significantly reduced TATs.

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Implementing communication between Windows PCs and test equipment using RS-232 and Borland C+ + Builder

Cited by 3 publications

References 7 publications

Hemiface contributions to hemispheric dominance in visual speech perception.

Hemiface contributions to hemispheric dominance in visual speech perception.

Visual Speech Perception in Foveal and Extrafoveal Vision: Further Implications for Divisions in Hemispheric Projections

Implementation of a Virtual Private Network-Based Laboratory Information System Serving a Rural Area in Turkey

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