Quasi-absolute surface figure test with two orthogonal transverse spatial shifts

2017 ◽  
Vol 389 ◽  
pp. 133-143 ◽  
Author(s):  
Shuai Xue ◽  
Shanyong Chen ◽  
Dede Zhai ◽  
Feng Shi
Keyword(s):  
Figure Test ◽  
Surface Figure

Symptomvalidierungstests in der neuropsychologischen Diagnostik: eine Analogstudie

2004 ◽  
Vol 15 (2) ◽  
pp. 81-90 ◽  
Author(s):  
Thomas Merten ◽  
Matthias Henry ◽  
Robin Hilsabeck
Keyword(s):  
Short Term Memory ◽  
Memory Test ◽  
Short Term ◽  
Term Memory ◽  
Word Memory Test ◽  
Word Memory ◽  
Complex Figure ◽  
Trail Making ◽  
Figure Test ◽  
Word Completion

Zusammenfassung: In der neuropsychologischen Diagnostik, mehr noch aber in der Begutachtung gewinnen Symptomvalidierungstests (SVT) zur Untersuchung der Leistungsmotivation zunehmend an Bedeutung. In einer Analogstudie wurde die Güte zweier international bekannter Verfahren (Word Memory Test; Amsterdam Short Term Memory Test) sowie einer Neuentwicklung (Word Completion Memory Test) untersucht. Zusätzlich wurden Leistungstests eingesetzt: der Trail Making Test (TMT), der Complex Figure Test sowie die Standard Progressive Matrices (SPM). Eine Gruppe von 10 experimentellen Simulanten wurde spezifisch auf die Vortäuschung von Gedächtnisstörungen vorbereitet, während eine Kontrollgruppe (n = 10) optimale Testanstrengung zeigen sollte. Alle SVT führten im Gegensatz zu den Simulationsmarkern des TMT und der SPM zu einer ausgezeichneten Klassifikationsgüte (95-100 %). Die neuropsychologischen Leistungsmaße wiesen zwar signifikante Gruppenunterschiede aus, zeigten aber auch eine nicht unbedeutende Überlappung der Verteilungen. Mehr Studien sind notwendig, um den SVT in den deutschsprachigen Ländern den Platz zu sichern, den sie international aktuell in der klinisch-neuropsychologischen Forschung und Praxis einnehmen.

Attachment and Field Dependence: Individual Differences in Information Processing

2004 ◽  
Vol 9 (1) ◽  
pp. 43-55 ◽  
Author(s):  
Patrizia Vermigli ◽  
Alessandro Toni
Keyword(s):  
Information Processing ◽  
Individual Differences ◽  
Field Dependence ◽  
Attachment Styles ◽  
Close Relationships ◽  
Adult Age ◽  
Males And Females ◽  
Figure Test ◽  
The Relationship ◽  
Measure Field

The present research analyzes the relationship between attachment styles at an adult age and field dependence in order to identify possible individual differences in information processing. The “Experience in Close Relationships” test of Brennan et al. was administered to a sample of 380 individuals (160 males, 220 females), while a subsample of 122 subjects was given the Embedded Figure Test to measure field dependence. Confirming the starting hypothesis, the results have shown that individuals with different attachment styles have a different way of perceiving the figure against the background. Ambivalent and avoidant individuals lie at the two extremes of the same dimension while secure individuals occupy the central part. Significant differences also emerged between males and females.

BERPIKIR REFLEKTIF SISWA BERDASARKAN GAYA KOGNITIF FIELD INDEPENDENT DAN FIELD DEPENDENT

EDUPEDIA ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 117
Author(s):  
Sayyidah Umma Rahmawati ◽  
Senja Putri Merona
Keyword(s):  
Field Independent ◽  
Field Dependent ◽  
Figure Test

Penelitian ini bertujuan untuk mendeskripsikan berpikir reflektif siswa ditinjau dari gaya kognitif field independent dan field dependent. Penelitian ini merupakan penelitian deskriptif dengan pendekatan kualitatif. Adapun istrumen yang digunakan adalah Group Embedded Figure Test (GEFT), tes soal berpikir reflektif dan wawancara. Sedangkan analisis data yang digunakan adalah analisis data Miles dan Huberman yang tediri dari reduksi data, penyajian data dan kesimpulan atau verifikasi.Hasil penelitian ini menunjukkan bahwa pada indikator berpikir reflektif reacting terdapat kesamaan berpikir reflektif antara siswa field independent dan field dependent. Pada indikator berpikir reflektif comparing terdapat perbedaan dalam hal menghubungkan pengetahuan yang diberikan dengan pengetahuan yang dimiliki. Pada indikator berpikir reflektif contemplating terdapat perbedaan pada kemampuan mendeteksi kesalahan. Temuan lain dalam penelitian ini adalah bahwa siswa field independent menjelaskan jawabannya dengan detail dan rinci, cenderung menggunakan cara menghafal dan memiliki kepercayaan diri yang tinggi. Sedangkan siswa field dependent menjelaskan jawabannya secara umum, memiliki analisis yang baik dan menyukai cara yang telah ditetapkan

Comparison of Neuropsychological Assessment by Videoconference and Face to Face

2021 ◽  
pp. 1-11
Author(s):  
Richard Gnassounou ◽  
Bénédicte Defontaines ◽  
Séverine Denolle ◽  
Stéphanie Brun ◽  
Raphaël Germain ◽  
...  
Keyword(s):  
Neuropsychological Assessment ◽  
Digit Span ◽  
Cognitive Disorders ◽  
Face To Face ◽  
Complex Figure ◽  
Selective Reminding ◽  
Trail Making ◽  
Neuropsychological Assessments ◽  
Figure Test ◽  
Selective Reminding Test

Abstract Objective: To compare the administration of neuropsychological tests by teleneuropsychology (TeleNP) and face to face (F-F) in order to determine the feasibility and reliability of TeleNP. Method: At the inclusion visit, all participants underwent a traditional F-F neuropsychological assessment as part of their standard care. Four months after inclusion, they were randomized to undergo an additional neuropsychological assessment either by F-F administration or by TeleNP. Results: A total of 150 adults with cognitive complaints, but with no major cognitive or sensorial impairment were included. At 4 months, 69 participants were randomized in the F-F arm and 71 in TeleNP arm (10 lost in the follow-up). The overall satisfaction was high: 87.1% in the TeleNP arm were “very satisfied”, and 82.9% indicated no preference between F-F and TeleNP. In agreement with previous data from the literature, neuropsychological assessments gave similar results across both administration conditions for a large majority of tests [Mini-Mental State Examination (MMSE), Free and Cued Selective Reminding Test (FCSRT) French version, Mahieux gestural praxis battery, Frontal Assessment Battery (FAB), time of completion of the Trail making Test (TMT) A and B, number of errors of the TMT B, Rey complex figure test, categorical et phonological verbal fluency tests] and minor differences for others [80-picture naming test (DO-80), FAB, Digit Span forward and backward and number of errors in the TMT A]. Conclusions: TeleNP is a promising method to be able to test patients as an alternative to F-F condition. Before this procedure can be generalized, it is now necessary to standardize the adaptation of certain tests and to test them in populations with more significant cognitive disorders.

Null Lenses for Testing Surface Figure of Aspheric Mirrors

1987 ◽  
Vol 16 (3) ◽  
pp. 58-66
Author(s):  
P. Nageswara Rao ◽  
K. K. Banerjee ◽  
H. S. Singh
Keyword(s):  
Surface Figure

Cognitive Styles Differentiate Crossmodal Correspondences Between Pitch Glide and Visual Apparent Motion

2017 ◽  
Vol 30 (3-5) ◽  
pp. 363-385 ◽  
Author(s):  
Lu Guo ◽  
Ming Bao ◽  
Luyang Guan ◽  
Lihan Chen
Keyword(s):  
Apparent Motion ◽  
Moving Objects ◽  
High Efficiency ◽  
Cognitive Styles ◽  
Crossmodal Correspondences ◽  
Crossmodal Interaction ◽  
Visual Apparent Motion ◽  
Field Independent ◽  
Crossmodal Correspondence ◽  
Figure Test

Crossmodal correspondences are the automatic associations that most people have between different basic sensory stimulus attributes, dimensions, or features. For instance, people often show a systematic tendency to associate moving objects with changing pitches. Cognitive styles are defined as an individual’s consistent approach to think, perceive, and remember information, and they reflect qualitative rather than quantitative differences between individuals in their thinking processes. Here we asked whether cognitive styles played a role in modulating the crossmodal interaction. We used the visual Ternus display in our study, since it elicits two distinct apparent motion percepts: element motion (with a shorter interval between the two Ternus frames) and group motion (with a longer interval between the two frames). We examined the audiovisual correspondences between the visual Ternus movement directions (upward or downward) and the changes of pitches of concurrent glides (ascending frequency or descending frequency). Moreover, we measured the cognitive styles (with the Embedded Figure Test) for each participant. The results showed that congruent correspondence between pitch-ascending (decreasing) glides and moving upward (downward) visual directions led to a more dominant percept of ‘element motion’, and such an effect was typically observed in the field-independent group. Importantly, field-independent participants demonstrated a high efficiency for identifying the properties of audiovisual events and applying the crossmodal correspondence in crossmodal interaction. The results suggest cognitive styles could differentiate crossmodal correspondences in crossmodal interaction.

Microwave Holographic Surface Measurement of the Tidbinbilla 64-m Antenna

1983 ◽  
Vol 5 (2) ◽  
pp. 270-272 ◽  
Author(s):  
Y. Rahmat-Samii ◽  
S. Gulkis ◽  
G.S. Levy ◽  
B.L Seidel ◽  
L.E. Young ◽  
...  
Keyword(s):  
High Speed ◽  
Survey Methods ◽  
Low Cost ◽  
Single Frequency ◽  
Surface Measurement ◽  
Antenna Aperture ◽  
Phase Fluctuations ◽  
Surface Deviations ◽  
Antenna Surface ◽  
Surface Figure

The ‘holographic’ technique for accurately measuring the surface figure of large reflector antennas, described by Bennet et al, (1976) and Scott and Ryle (1977), has many advantages over older conventional survey methods. These include high speed, low cost, and the absence of any need for additional complex mechanical or optical survey devices. In essence, the technique consists of measuring the complex far-field response of the antenna at a single frequency using a terrestrial, satellite-borne or celestial radiation source of small angular diameter. This two-dimensional pattern is then Fourier-transformed to yield the complex illumination function across the antenna aperture. Antenna surface deviations are manifested as phase fluctuations in this function. In practice, a second antenna is needed to provide a phase reference.

Application of LIDAR technology for rail surface monitoring and quality indexing

2017 ◽  
Vol 232 (5) ◽  
pp. 1398-1406 ◽  
Author(s):  
Masood Taheri Andani ◽  
Abdullah Mohammed ◽  
Ashish Jain ◽  
Mehdi Ahmadian
Keyword(s):  
Doppler Frequency ◽  
Light Detection And Ranging ◽  
Doppler Lidar ◽  
Frequency Range ◽  
Absorption Properties ◽  
Surface Conditions ◽  
Lidar Measurements ◽  
Rail Inspection ◽  
Surface Monitoring ◽  
Surface Figure

This paper investigates the application of Doppler Light Detection and Ranging (LIDAR) sensors for the assessment of the top of rail lubricity condition and layer material. Different top of rail conditions are distinguished by the system using a new pair of rail surface indices defined based on LIDAR measurements. These indices provide quantitative representations of the top of rail condition due to the fact that Doppler frequency range and spectral magnitude of a backscattered LIDAR beam are functions of the rail surface figure as well as the light absorption properties of the surface material. Laboratory tests are conducted to demonstrate the feasibility of the proposed top of rail indexing operation. The results indicate that LIDAR sensors are capable of detecting and distinguishing between different top of rail surface conditions. Instrumenting rail inspection vehicles with Doppler LIDAR systems reduces reliance on empirical top of rail lubricity and surface assessments (such as observing the sheen of the rail or tactilely sensing various residues on the rail), in favor of reliable and repeatable measurements.

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