scholarly journals Lamina feedback neurons regulate the bandpass property of the flicker‐induced orientation response in Drosophila

2020 ◽  
Author(s):  
Deliang Yuan ◽  
Xiaoxiao Ji ◽  
Shun Hao ◽  
Julia Yvonne Gestrich ◽  
Wenlan Duan ◽  
...  
Keyword(s):  
Orientation Response

A laboratory study of vertical migration

1955 ◽  
Vol 144 (916) ◽  
pp. 329-354 ◽  
Keyword(s):  
Light Intensity ◽  
Vertical Migration ◽  
Time Course ◽  
Tap Water ◽  
Low Light ◽  
Overhead Light ◽  
Light Intensities ◽  
Orientation Response ◽  
Reduced Light ◽  
Characteristic Maximum

In a tank filled with a suspension of indian ink in tap water, a population of Daphnia magna will undergo a complete cycle of vertical migration when an overhead light source is cycli­cally varied in intensity. A ‘dawn rise’ to the surface at low intensity is followed by the descent of the animals to a characteristic maximum depth. The animals rise to the surface again as the light decreases, and finally show a typical midnight sinking. The light intensities at the level of the animals in this experiment are of the same order as those which have been reported in field observations; the time course of the movement also repeats the natural conditions in the field. The process is independent of the duration of the cycle and is related only to the variation in overhead light intensity. At low light intensity the movement of the animal is determined solely by positive photo-kinesis; the dawn rise is a manifestation of this, and is independent of the direction of the light. At high light intensities there is an orientation response which is superimposed upon an alternating positive (photokinetic) phase and a negative phase during which movement is inhibited. The fully oriented animal shows a special type of positive and negative phototaxis, moving towards the light at reduced light intensities and away from it when the light intensity is increased. In this condition it follows a zone of optimum light intensity with some exactness. Experiments show that an animal in this fully oriented condition will respond to the slow changes of intensity characteristic of the diurnal cycle, while being little affected by tran­sient changes of considerable magnitude.

New multiplicities of dreaming and REMing

2000 ◽  
Vol 23 (6) ◽  
pp. 953-955 ◽  
Author(s):  
Harry T. Hunt
Keyword(s):  
Factor Models ◽  
Single Factor ◽  
Multiple Dimensions ◽  
Orientation Response

The five authors vary in the degree to which the recent neuroscience of the REM state leads them towards multiple dimensions and forms of dreaming consciousness (Hobson et al.; Nielsen; Solms) or toward all-explanatory single factor models (Vertes & Eastman, Revonsuo). The view of the REM state as a prolongation of the orientation response to novelty fits best with the former pluralisms but not the latter monisms.[Hobson et al.; Nielsen; Revonsuo; Solms; Vertes & Eastman]

Orientation Response

2011 ◽  
pp. 1043-1044
Keyword(s):  
Orientation Response

Compass orientation of sockeye salmon fry from a complex river system

1981 ◽  
Vol 59 (8) ◽  
pp. 1548-1553 ◽  
Author(s):  
Ernest L. Brannon ◽  
Thomas P. Quinn ◽  
Gino L. Lucchetti ◽  
Brian D. Ross
Keyword(s):  
Magnetic Field ◽  
Lake Water ◽  
Sockeye Salmon ◽  
River System ◽  
The Moon ◽  
Compass Orientation ◽  
Temporal Cues ◽  
Salmon Fry ◽  
Orientation Response ◽  
Guidance Information

Sockeye salmon (Oncorhynchus nerka) fry from the Weaver Creek – Harrison Lake population were tested to determine whether they exhibited directional orientation in the absence of water flow. The fry oriented in a generally north-northeast direction. The presence of the moon greatly enhanced the strength of the northward orientation response, and the moon may have provided the fry with guidance information. Tests with newly emerged fry indicated little or no response to a directionally altered magnetic field. Both the passage of time and exposure to Harrison River – Harrison Lake water enhanced the compass orientation response, implying that an inherited response is triggered by environmental and temporal cues.

scholarly journals Development of the auditory orientation response in rats

1981 ◽  
Vol 69 (S1) ◽  
pp. S64-S64 ◽  
Author(s):  
Peter W. Judge ◽  
Jack B. Kelly
Keyword(s):  
Orientation Response

Attention and Learning Disordered Children: A Review of Theory and Remediation

1976 ◽  
Vol 9 (2) ◽  
pp. 100-110 ◽  
Author(s):  
Larry P. Harris
Keyword(s):  
Operational Definition ◽  
Stimulus Selection ◽  
Maladaptive Behaviors ◽  
Student Responses ◽  
Attentional Deficits ◽  
Orientation Response ◽  
Environmental Stimulation ◽  
Task Irrelevant ◽  
Motor Restlessness ◽  
Child Problems

This is a review of the pivotal position accorded attentional deficits in explaining the inferior school-related performances of the mild-to-moderate LD, ED, and MR child. Problems in defining attention are discussed and an operational definition is given which lists those behaviors commonly associated with (1) adaptation to classroom environments, which lead to (2) correct student responses to pertinent, task-relevant stimuli. Orientation response and stimulus selection theories are summarized, and three common methods of remediation — drug therapy, reduced environmental stimulation, and operant conditioning — are examined to determine their efficacy. While each method was found to reduce maladaptive behaviors (e.g., motor restlessness, eyes and ears involved off-task, irrelevant talking), none of them lead to significant increases in correct academic work. Several interpretations of this finding and its import for special educators are listed.

Roadmap to Gaining Customer Satisfaction

2021 ◽  
pp. 308-325
Author(s):  
Dk Nurrahimah Pg Japar ◽  
Noor Hazwani Awang Matkasim ◽  
Nor A'shiqeen Haji Rabaie ◽  
Nur Izzah Hasna Farihin @ Hamiza Hamdani ◽  
Nurhazimah Haji Ahmad
Keyword(s):  
Thematic Analysis ◽  
Customer Orientation ◽  
Accurate Data ◽  
Communication Tool ◽  
The Public ◽  
Orientation Response ◽  
Depth Interview ◽  
The Government ◽  
Digital Assets

The provision of reliable and accurate data through a competent communication tool encourages the significantly competitive public sector and nurtures a prosperous society. The chapter discusses the optimization of digital assets, specifically, allocating accessible two-way communication between the government and its stakeholders which can lead to far-sighted information processing and resourceful decision-making. Simultaneously, it aims to recognize and suggest solutions to the prevailing strains towards the digitalization of operations in the said industry. Accompanied by a thematic analysis of data collected from literature, a qualitative in-depth interview was deployed with a relevant agency to gain enlightenment of the public service in its real context. The results of the study present an essence of the advanced process sophistication, the comprehensiveness, and flexibility of the IT system, the reuse of knowledge, as well as the quality of customer orientation response capabilities.

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