scholarly journals Evaluating the role of the cerebellum in temporal processing: beware of the null hypothesis

Brain ◽  
2004 ◽  
Vol 127 (8) ◽  
pp. E13-E13 ◽  
Author(s):  
R. B. Ivry
Keyword(s):  
Temporal Processing ◽  
Null Hypothesis

scholarly journals Role of Cooperative Societies in Boosting Agricultural Production & Entrepreneurship in the Kebbi State of Nigeria.

2017 ◽  
pp. 234-351
Author(s):  
Kamelshewer Lohana Et al.,
Keyword(s):  
Local Government ◽  
Sample Size ◽  
Agricultural Production ◽  
Null Hypothesis ◽  
Food Production ◽  
Sampling Technique ◽  
Added Value ◽  
Cluster Sampling ◽  
Survey Results

The study Assess the Role & contributions of cooperative societies in boosting agricultural production & Entrepreneurship in the Kebbi State of Nigeria. A total of 120 sample size was used for the study. Cluster sampling technique was used to obtaining information from sample respondents (members of farmers’ cooperative societies). Sixty (60) questionnaires were administered to sixty respondents, each in both Zuru and Yauri Local Government Areas. Data collected was analysed and interpreted using simple percentage and descriptive methods. The major conclusions drawn from this research were: survey results, regarding effectiveness of cooperative societies in improving agricultural production & Entrepreneurship, have shown that 33.3% and 25% of the respondents in Zuru and Yauri Local Government Areas reported promoting farmers’ participation in agriculture, while 25% and 46% agreed to boost agricultural production in the study areas. About 36.6% and 35% believed in the effectiveness of cooperative societies in increasing food production. Sample respondents in the two Local Government Areas 5% and 3.3% reported all of the above indicators increase the effectiveness of cooperatives to agriculture. Survey results regarding the role of cooperatives in boosting Entrepreneurship in the study areas shows that 75% Zuru 88.3% Yauri agreed that cooperatives have added value to boosting Agric production & Entrepreneurship and only 15% and 11.6% did not agree with the above opinion. Many problems were identified that affects the smooth functioning of cooperatives and solutions for addressing the problems were recommended. Therefore it was concluded that Null Hypothesis HO is rejected and Alternate Hypothesis HA is accepted.

The role of primary auditory and visual cortices in temporal processing: A tDCS approach

2016 ◽  
Vol 313 ◽  
pp. 151-157 ◽  
Author(s):  
G. Mioni ◽  
S. Grondin ◽  
M. Forgione ◽  
V. Fracasso ◽  
D. Mapelli ◽  
...  
Keyword(s):  
Temporal Processing ◽  
Visual Cortices

Utilizing the Cortico-Striatal Projectome to Advance the Study of Timing and Time Perception

2016 ◽  
Vol 4 (4) ◽  
pp. 411-422 ◽  
Author(s):  
Nicholas A. Lusk ◽  
Dean V. Buonomano
Keyword(s):  
Time Perception ◽  
Temporal Processing ◽  
Large Scale ◽  
Imaging Techniques ◽  
Brain Connectivity ◽  
Beat Frequency ◽  
Dorsal Striatum ◽  
Frequency Model ◽  
Timing And Time Perception

Over the past decade advances in tracing and imaging techniques have spurred the development of increasingly detailed maps of brain connectivity. Broadly termed ‘connectomes’, these maps provide a powerful tool for systems neuroscience. As with most ‘maps’, connectomes offer a static spatial description of the brain’s circuits, whereas timing and temporal processing are inherently dynamic processes; nevertheless, the timing field stands to be a major beneficiary of these large-scale mapping projects. The recently reported ‘projectome’ of mouse cortico-striatal sub-networks is of particular interest because theoretical developments such as the striatal beat-frequency model emphasize the role of the striatum in temporal processing. The cortico-striatal projectome confirms that the dorsal striatum is ideally situated to sample patterns of activity throughout most of the cortex, but that it also contains a level of modularity previously not considered by integrative models of interval timing. Furthermore, the striatal projectome will allow for targeted studies of whether specific subdivisions of the dorsal striatum are differentially involved in timing and time perception as a function of task, stimulus modality, intensity, and valence.

scholarly journals Neural Network of Predictive Motor Timing in the Context of Gender Differences

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Pavel Filip ◽  
Jan Lošák ◽  
Tomáš Kašpárek ◽  
Jiří Vaníček ◽  
Martin Bareš
Keyword(s):  
Neural Network ◽  
Temporal Processing ◽  
Temporal Analysis ◽  
Behavioral Performance ◽  
Motor Timing ◽  
Short Term ◽  
Fmri Study ◽  
Movement Parameters ◽  
Timing Processes

Time perception is an essential part of our everyday lives, in both the prospective and the retrospective domains. However, our knowledge of temporal processing is mainly limited to the networks responsible for comparing or maintaining specific intervals or frequencies. In the presented fMRI study, we sought to characterize the neural nodes engaged specifically in predictive temporal analysis, the estimation of the future position of an object with varying movement parameters, and the contingent neuroanatomical signature of differences in behavioral performance between genders. The established dominant cerebellar engagement offers novel evidence in favor of a pivotal role of this structure in predictive short-term timing, overshadowing the basal ganglia reported together with the frontal cortex as dominant in retrospective temporal processing in the subsecond spectrum. Furthermore, we discovered lower performance in this task and massively increased cerebellar activity in women compared to men, indicative of strategy differences between the genders. This promotes the view that predictive temporal computing utilizes comparable structures in the retrospective timing processes, but with a definite dominance of the cerebellum.

The role of subsurface storage on departures from the Budyko curve

2020 ◽  
Author(s):  
Laurent Pfister ◽  
Stan Schymanski ◽  
Remko Nijzink ◽  
Jeffrey McDonnell
Keyword(s):  
Null Hypothesis ◽  
Catchment Area ◽  
Potential Evapotranspiration ◽  
Precipitation Amount ◽  
Aridity Index ◽  
Transit Times ◽  
Porosity And Permeability ◽  
Below Ground ◽  
East West

<p>The Budyko framework is a widely used empirical concept in hydrology and climatology. However, catchment water balances that plot along the curve are often noisy and scattered, with some catchments plotting above the curve and some below the curve. Here we examine one of the possible causes for such scatter: subsurface storage. We bring together data from 38 experimental catchments in Luxembourg where all climate and landuse factors are roughly constant, except for subsurface storage.</p><p>We leverage diverse catchment geology represented by the large differences in bedrock porosity and permeability with resulting large differences in storage and streamwater transit times across our set of nested catchments. This setting enables us to test the null hypothesis that departures (offset) from the Budyko line along the evaporative index (i.e. actual evapotranspiration / potential evapotranspiration) axis has no relation to below ground storage. We then ask the following questions:</p><ol><li>Where do the 38 Luxembourg catchments plot in the Budyko space?</li> <li>How do subsurface storage metrics vary across the 38 Luxembourg catchments?</li> <li>How are these subsurface storage metrics related to the Budyko offset?</li> </ol><p>And secondarily,</p><ol><li>What might explain scatter on the precipitation / PET axis in the Luxembourg catchments and how is this related to catchment area?</li> </ol><p>Our main finding is that subsurface storage—driven by differences in catchment geology—explains approximately 60% of the departure from the Budyko curve. Furthermore, scatter along the aridity index axis (i.e. precipitation / potential evapo-transpiration) is explained by an east-west gradient in precipitation amount within an otherwise low seasonality environment.</p>

Role of Auditory Temporal Processing for Reading and Spelling Disability

1998 ◽  
Vol 86 (3) ◽  
pp. 1043-1047 ◽  
Author(s):  
Gerd Schulte-Körne ◽  
Wolfgang Deimel ◽  
Jürgen Bartling ◽  
Helmut Remschmidt
Keyword(s):  
Temporal Processing ◽  
Detection Threshold ◽  
Detection Task ◽  
Gap Detection ◽  
Auditory Temporal Processing ◽  
Spelling Disability ◽  
Processing Deficit ◽  
Reading And Spelling

The role of auditory temporal processing in reading and spelling was investigated in a sample of 30 children and one of 31 adults, using a gap-detection task with nonspeech stimuli. There was no evidence for a relationship between reading and spelling disability (dyslexia) and the gap-detection threshold. The results were discussed regarding the relevance for the popular hypothesis of an auditory temporal processing deficit underlying dyslexia.

The role of duration and rapid temporal processing on the lateral perception of consonants and vowels

1982 ◽  
Vol 17 (2) ◽  
pp. 272-286 ◽  
Author(s):  
Julia Dwyer ◽  
Sheila E. Blumstein ◽  
John Ryalls
Keyword(s):  
Temporal Processing
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