scholarly journals Mixing location-irrelevant and location-relevant trials: Influence of stimulus mode on spatial compatibility effects

2002 ◽  
Vol 30 (2) ◽  
pp. 281-293 ◽  
Author(s):  
Robert W. Proctor ◽  
Kim-Phuong L. Vu
Keyword(s):  
Spatial Compatibility ◽  
Stimulus Mode

Aff_Faces

2018 ◽  
Author(s):  
Luiz G Gawryszewski ◽  
Mikael Cavallet
Keyword(s):  
Compatibility Effect ◽  
Negative Stimulus ◽  
Positive Stimulus ◽  
Spatial Compatibility ◽  
Affective Valence ◽  
Task Set ◽  
Affective Stimuli ◽  
Fearful Faces ◽  
Approach Avoidance ◽  
Avoidance Reactions

Conde et al (2011) reported a modulation of the spatial compatibility effect by the affective valence of soccer team figures. For Favorite team, it was faster to respond by pressing the key located on the stimulus side than the opposite key (ipsi- and contralateral keys, respectively). For Rival team, this pattern was reversed. These findings were interpreted as being due to approach and avoidance reactions which facilitate both the ipsilateral response to a positive stimulus and the contralateral response to a negative one and vice-versa. This hypothesis was challenged by arguing that there is no spatial compatibility effect when a mixed-rule task was used and that approach/avoidance reactions are not elicited when a keyboard was employed to execute the responses. Alternatively, it was proposed that Conde et al. (2011) results were due to task-set effects. Here, emotional faces (Happy, Angry and Fearful) faces were used to test the generality of effects elicited by affective stimuli and to disentangle task-set and approach/avoidance reactions hypotheses. We found that there is no task-set effect when the Happiness-Anger pair was used. Moreover, for the Happiness/Fear pair, there was an interaction between valence and spatial compatibility within a block of trials. These results suggest that: (i) the interaction between valence and spatial compatibility in the Affective SC task modulates the spatial compatibility effect; (ii) this modulation elicits a task-set effect that varies according to the pair of affective stimuli and (iv) the task-set effect may be due to an automatic orientation of the visual attention to the positive stimulus which facilitates the ipsilateral response conjoined with an inhibition of the ipsilateral response to the aversive stimulus, simulating a reversed compatibility effect to the negative stimulus.

Stimulus mode and concept formation in preschool children.

1979 ◽  
Vol 15 (2) ◽  
pp. 218-220 ◽  
Author(s):  
Judith A. Becker ◽  
Sue R. Rosner ◽  
Katherine Nelson
Keyword(s):  
Preschool Children ◽  
Concept Formation ◽  
Stimulus Mode

scholarly journals Carotid and aortic baroreflexes of the rat: I. Open-loop steady-state properties and blood pressure variability

2000 ◽  
Vol 279 (5) ◽  
pp. R1910-R1921 ◽  
Author(s):  
Barry R. Dworkin ◽  
Susan Dworkin ◽  
Xiaorui Tang
Keyword(s):  
Blood Pressure ◽  
Venous Pressure ◽  
Open Loop ◽  
Direct Stimulation ◽  
Large Variability ◽  
Aortic Depressor Nerve ◽  
Cardiac Responses ◽  
C Fibers ◽  
Stimulus Mode ◽  
Sinus Pressure

To characterize the baroreflex in central nervous system-intact neuromuscular-blocked rats, we measured the vascular and cardiac responses and compared direct stimulation of the aortic depressor nerve (ADN) with a capacitance electrode (differentially activating either A or A + C fibers) to carotid sinus pressure with a micro-balloon (SINUS). One-thousand-two-hundred-ninety-seven open-loop measurements of systolic blood pressure (SBP), heart rate, venous pressure (VBP), and mesenteric (msBF), femoral (fmBF), and skin (skBF) blood flow were completed; the linear range of the effects was determined for each response and stimulus mode. The rats were sinoaortic denervated (SAD). The open-loop stimulation effect was very stable; e.g., the mean effect of 790 ADN stimulations during >7 days was −9.8 mmHg, with an average drift of +0.001 mmHg/h. In contrast, there was large variability of the SBP baseline (e.g., SD = ±10.9), which was due to SAD (±6.3 to ±16.3 mmHg, t = −13.9, df = 4, P < 0.0002) and was reversed by ganglionic block (±10.8 to ± 2.9 mmHg, t = −12.9, df = 3, P < 0.001). The ADN stimuli produced larger depressor responses than sinus stimuli (−66 vs. −45 mmHg); all component responses paralleled the magnitude of the SBP effect, except interbeat interval (IBI), for which the ADN ΔIBI was ≈10 times that of SINUS. For all stimuli, fmBF increased and msBF did not. Mesenteric and femoral vascular conductance both increased, whereas VBP decreased and skBF followed SBP. We found that for all baroreflex response components, with the exception of SINUS-elicited ΔIBI, there was an orderly, substantially linear, relationship between stimulus strength and response magnitude.

Influence of visual stimulus mode on transfer of acquired spatial associations.

2009 ◽  
Vol 35 (2) ◽  
pp. 434-445 ◽  
Author(s):  
Robert W. Proctor ◽  
Motonori Yamaguchi ◽  
Yanmin Zhang ◽  
Kim-Phuong L. Vu
Keyword(s):  
Visual Stimulus ◽  
Spatial Associations ◽  
Stimulus Mode

User Grouping Based on Spatial Compatibility for Dynamic-TDD Cooperative Networks

2018 ◽  
Author(s):  
Laszlon R. Costa ◽  
Darlan C. Moreira ◽  
Yuri C. B. Silva ◽  
Walter C. Freitas ◽  
F. Rafael M. Lima
Keyword(s):  
Cooperative Networks ◽  
Spatial Compatibility ◽  
User Grouping ◽  
Dynamic Tdd
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