Stimulus Intensity and Spatiality in Tactile Temporal Numerosity Discrimination

Perception ◽  
1974 ◽  
Vol 3 (3) ◽  
pp. 297-302 ◽  
Author(s):  
E C Lechelt
Keyword(s):  
Spatial Variation ◽  
Signal Intensity ◽  
Presentation Rate ◽  
Middle Finger ◽  
Absolute Judgment ◽  
Numerosity Discrimination ◽  
Multiple Loci ◽  
Stimulus Complex ◽  
Left Middle

The role of signal intensity in tactile temporal numerosity discrimination was investigated for limited conditions of signal number and presentation rate. Trains of 5 to 18 mechanical ‘taps’ were presented at rates of 6, 8, 10, 12, or 15 s−1 to the ball of the left middle finger at either 75 or 125 V (15 or 20 dB SL, respectively). Trains of signals of greater intensity were counted reliably more accurately. Results from this spatially static arrangement are compared to those obtained under conditions of spatial variation where signals of identical intensity were delivered to multiple loci instead of to a single locus. It is concluded that the absolute judgment of the number of tactile signals in a train is a very labile process and highly dependent upon, and specific to, the physical characteristics—temporal, spatial, and intensive—of the stimulus complex.

Subungual Pigmented SCC on the Left Middle Finger

2019 ◽  
Vol 81 (2) ◽  
pp. 83-84
Author(s):  
Shunichi JINNAI ◽  
Kenjiro NAMIKAWA ◽  
Taisuke MORI ◽  
Naoya YAMAZAKI
Keyword(s):  
Middle Finger ◽  
Left Middle

scholarly journals Role of malnutrition and parasite infections in the spatial variation in children’s anaemia risk in northern Angola

2013 ◽  
Vol 7 (2) ◽  
pp. 341 ◽  
Author(s):  
Ricardo J. Soares Magalhães ◽  
Antonio Langa ◽  
João Mário Pedro ◽  
José Carlos Sousa-Figueiredo ◽  
Archie C.A. Clements ◽  
...  
Keyword(s):  
Spatial Variation ◽  
Parasite Infections

scholarly journals Plant Thorn Synovitis of the Hand in an Adult Patient: A Case Report and Review of the Current Literature

2019 ◽  
Vol 5 ◽  
pp. 2513826X1987650
Author(s):  
Sarah L. Zhu ◽  
Cameron F. Leveille ◽  
Emily E. Dunn ◽  
Michael J. Cooper
Keyword(s):  
Case Report ◽  
Current Literature ◽  
Foreign Bodies ◽  
Middle Finger ◽  
Proximal Interphalangeal Joint ◽  
Interphalangeal Joint ◽  
The Past ◽  
Left Middle ◽  
Exploratory Surgery ◽  
Plum Tree

This is a case of plant thorn synovitis of the hand in an adult following a plum tree thorn injury, the first reported case in the hands in the past decade. The patient initially presented with persistent joint discomfort following removal of a retained plum thorn fragment from the skin overlyin the proximal interphalangeal joint of the left middle finger. Initial radiography and sonography imaging following the removal revealed no foreign bodies. However, the patient’s symptoms were worsening and refractory to anti-inflammatory and antibiotic treatment. An exploratory surgery was carried out, which revealed multiple plant thorn fragments within the synovium, each measuring approximately 1 mm in size. A synovectomy was performed and the patient recovered with full function. Our case of plant thorn synovitis is discussed along with a review of the current literature on plant thorn synovitis in the hands.

Logical Chaotic Resonance in a Bistable System

2020 ◽  
Vol 30 (13) ◽  
pp. 2050196 ◽  
Author(s):  
Yuangen Yao ◽  
Jun Ma
Keyword(s):  
Signal Intensity ◽  
First Passage Time ◽  
Logic Gate ◽  
Response Speed ◽  
Chaotic Signal ◽  
Passage Time ◽  
Bistable System ◽  
Gate Operation ◽  
Intuitive Interpretation

In this work, we demonstrate a new chaotic signal-induced phenomenon that the output of a chaotic signal-driven bistable system can be consistently mapped to specific logic gate operation in an optimal window of chaotic signal intensity. We term this phenomenon logical chaotic resonance (LCR). Then, an intuitive interpretation for LCR phenomenon is given based on potential well map and mean first-passage time. Through LCR mechanism, the chaotic signal with proper intensity is used to obtain reliable logical gate in the bistable system. Besides, appropriately increasing the chaotic signal intensity can effectively improve the response speed of the bistable system to the change of input signal. Finally, the role of chaotic signal in enhancing the capacity of resisting disturbance of parameters is demonstrated.

scholarly journals Treatment of a patient suffering from posttraumatic painful neuromas formed at the bilateral digital nerves of the left middle finger using two neurovascular island flaps

JPRAS Open ◽  
2019 ◽  
Vol 19 ◽  
pp. 1-5
Author(s):  
Shunki Iemura ◽  
Ryosuke Kakinoki ◽  
Kazuhiro Ohtani ◽  
Kazuhiko Hashimoto ◽  
Fumihisa Nakamura ◽  
...  
Keyword(s):  
Middle Finger ◽  
Left Middle

Property Relations and Landlordism—a Realist Approach

1983 ◽  
Vol 1 (2) ◽  
pp. 191-203 ◽  
Author(s):  
J Allen
Keyword(s):  
Spatial Variation ◽  
Philosophy Of Science ◽  
Conceptual Analysis ◽  
Social Research ◽  
Alternative Mode ◽  
Rental Market ◽  
Property Relations ◽  
Mechanistic Approach ◽  
Different Types

Analysis of the role of concepts in urban social research is largely an undeveloped area. Justification of the adoption of particular forms of classification in studies are rarely offered and are often passed over in favour of a discussion of the more tractable areas of empirical research. In this paper the practice of conceptual analysis adopted in one sphere of urban research, landlordism and property relations, is evaluated and criticised for its unreflective mechanistic approach. Invariably, the object (landlordism) is subjected to a form of analysis which treats it as if it were analogous to an onion, from which layers may be peeled off, one after another. It is argued that this mode of analysis does not reveal the economic and social properties that constitute different types of landlordism, which, in turn, may provide the basis for an understanding of the spatial variation in the structure of the market for privately rented housing in Britain. An alternative mode of conceptual analysis, based upon the principles of a realist philosophy of science, is proposed, which has the potential to explain the structural unevenness of the rental market and the roles adopted by different groups of landlords in this market.

Spatial variation of amount effect over peninsular India and Sri Lanka: Role of seasonality

2015 ◽  
Vol 42 (13) ◽  
pp. 5500-5507 ◽  
Author(s):  
P. R. Lekshmy ◽  
M. Midhun ◽  
R. Ramesh
Keyword(s):  
Sri Lanka ◽  
Spatial Variation ◽  
Peninsular India ◽  
Amount Effect

scholarly journals Uniphasic Blanching of the Fingers, Abnormal Capillaroscopy in Nonsymptomatic Digits, and Autoantibodies: Expanding Options to Increase the Level of Suspicion of Connective Tissue Diseases beyond the Classification of Raynaud’s Phenomenon

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Francesca Ingegnoli ◽  
Roberta Gualtierotti ◽  
Annalisa Orenti ◽  
Tommaso Schioppo ◽  
Giovanni Marfia ◽  
...  
Keyword(s):  
Connective Tissue ◽  
Early Diagnosis ◽  
Raynaud’S Phenomenon ◽  
Connective Tissue Diseases ◽  
Middle Finger ◽  
Raynaud's Phenomenon ◽  
Potential Development ◽  
Colour Changes

In patients with Raynaud’s phenomenon (RP), the role of medical history, capillaroscopy, and autoantibodies in order to provide an early diagnosis of connective tissue disease (CTD) were examined. 115 consecutive adults with uni-, bi-, or triphasic colour changes of the fingers were studied. RP was bilateral in 92.7% of patients. The middle finger was significantly more affected. A lack of association between fingers affected by RP and fingers with capillary abnormalities was observedOR=0.75(0.34–1.66). RP with the cyanotic phase had a higher risk at capillaroscopy to have hemorrhagesOR=4.46(1.50–13.30) and giant capillariesOR=24.85(1.48–417.44). The thumb and triphasic involvement have an OR of 1.477 and 1.845, respectively. RP secondary to systemic sclerosis (SSc) had greater value of VAS pain (p=0.011). The presence of anti-centromere antibodies was significantly associated with a higher risk of SSc (p<0.001). 44.3% of subjects had uniphasic blanching of the fingers, and among these, 27% was diagnosed as having an overt or suspected CTD. Markers of a potential development of CTDs include severe RP symptoms, positive autoantibodies, and capillary abnormalities. These data support the proposal to not discharge patients with uniphasic blanching of the fingers to avoid missing the opportunity of an early diagnosis.

Ultrafast laser ablation ICP-MS: role of spot size, laser fluence, and repetition rate in signal intensity and elemental fractionation

2014 ◽  
Vol 29 (2) ◽  
pp. 339-346 ◽  
Author(s):  
Prasoon K. Diwakar ◽  
Jhanis J. Gonzalez ◽  
Sivanandan S. Harilal ◽  
Richard E. Russo ◽  
Ahmed Hassanein
Keyword(s):  
Laser Ablation ◽  
Laser Fluence ◽  
Repetition Rate ◽  
Signal Intensity ◽  
Spot Size ◽  
Ultrafast Laser ◽  
Elemental Fractionation ◽  
Icp Ms ◽  
Ultrafast Laser Ablation
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