scholarly journals Unconditioned and conditioned responses to colour in the predatory coccinellid, Harmonia axyridis (Coleoptera: Coccinellidae)

2000 ◽  
Vol 97 (4) ◽  
pp. 463-467 ◽  
Author(s):  
Edward B. MONDOR ◽  
Jessie L. WARREN
Keyword(s):  
Harmonia Axyridis ◽  
Conditioned Responses ◽  
Predatory Coccinellid

Hearing in Mice via GSR Audiometry

1963 ◽  
Vol 6 (4) ◽  
pp. 359-368 ◽  
Author(s):  
Charles I. Berlin
Keyword(s):  
Inverse Relationship ◽  
Sound Pressure ◽  
Single Units ◽  
Sensitivity Curve ◽  
Basic Tool ◽  
Eighth Nerve ◽  
Pure Tones ◽  
Conditioned Responses ◽  
Frequency Intensity ◽  
Near Threshold

Hearing in mice has been difficult to measure behaviorally. With GSR as the basic tool, the sensitivity curve to pure tones in mice has been successfully outlined. The most sensitive frequency-intensity combination was 15 000 cps at 0-5 dB re: 0.0002 dyne/cm 2 , with responses noted from 1 000 to beyond 70 000 cps. Some problems of reliability of conditioning were encountered, as well as findings concerning the inverse relationship between the size of GSR to unattenuated tones and the sound pressure necessary to elicit conditioned responses at or near threshold. These data agree well with the sensitivity of single units of the eighth nerve of the mouse.

Classically conditioned responses in opioid and cocaine dependence: A role in relapse?

1988 ◽  
Author(s):  
Anna R. Childress ◽  
A. Thomas McLellan ◽  
Ronald Ehrman ◽  
Charles P. O'Brien
Keyword(s):  
Cocaine Dependence ◽  
Conditioned Responses ◽  
Classically Conditioned

Empathy Does Not Amplify Vicarious Threat Learning

2019 ◽  
Author(s):  
Alexander Lane Williams ◽  
Christopher C Conway
Keyword(s):  
Individual Differences ◽  
Skin Conductance ◽  
Defensive Response ◽  
Conditioned Stimuli ◽  
Defensive Reaction ◽  
Direct Exposure ◽  
Conditioned Responses ◽  
Clinically Significant ◽  
Stimulus Materials ◽  
Dispositional Empathy

Clinically significant fears and phobias can be acquired vicariously. Witnessing a demonstrator’s defensive reaction to potentially dangerous objects and situations can instill conditioned threat responses in the observer. The present study concentrates on individual differences in this social learning process. Specifically, we hypothesized that dispositional empathy modulates vicarious threat conditioning. We examined university students’ (N = 150) conditioned threat responding after they observed strangers undergo Pavlovian threat conditioning. There was evidence of a substantial conditioned defensive response (Cohen’s d = 0.66), as indexed by elevated skin conductance reactions during participants’ direct exposure to the vicariously conditioned stimuli. Contrary to expectations, indices of dispositional empathy were weakly related to the size of conditioned responses (median r = .04). Our results confirm that vicarious threat learning can be evaluated experimentally, but they do not support the hypothesis that empathy amplifies this process. The preregistration, stimulus materials, data, and analysis code for this study are available at https://osf.io/h6hm2.

ФЕНОТИПИЧЕСКАЯ ПЛАСТИЧНОСТЬ ТЕМПЕРАТУРНЫХ НОРМ РАЗВИТИЯ АЗИАТСКОЙ БОЖЬЕЙ КОРОВКИ HARMONIA AXYRIDIS (PALLAS) (COLEOPTERA, COCCINELLIDAE)

2020 ◽  
Vol 99 (3) ◽  
pp. 495-519
Author(s):  
Е. Б. ЛОПАТИНА ◽  
◽  
С. Я. РЕЗНИК ◽  
А. Н ОВЧИННИКОВ ◽  
А. А. ОВЧИННИКОВА ◽  
...  
Keyword(s):  
Harmonia Axyridis ◽  
Harmonia Axyridis Pallas

Human Behavior from an Islamic Perspective

2011 ◽  
Vol 28 (2) ◽  
pp. 86-105
Author(s):  
Fatimah Abdullah
Keyword(s):  
Human Behavior ◽  
Current Trend ◽  
Belief System ◽  
Biological Factors ◽  
Nature Versus Nurture ◽  
Western Psychology ◽  
Conditioned Responses ◽  
The One ◽  
Corrupt Behavior ◽  
Islamic Belief

Western psychology tends to be divisive in dealing with human personality and has been responsible for the nature-versus nurture controversy. On the one hand, it contends that certain corrupt behavior is predetermined by psychological or biological factors from conception—while on the other, it explains behavior as a simplistic series of reinforcements from contingencies and conditioned responses to environmental stimuli. This secular humanistic outlook has produced an ethical relativism that is the current trend in today’s world. This stance is not condemned only by Islam, but also by most religions of the world. This shows that the human nature (fitrah) is still vibrant and dynamic. This article attempts to highlight the importance of the Islamic belief system—which is an integrated and comprehensive way in dealing with human behavior—especially by means of the interaction of nature, nurture, and the spiritual factor in the formation of human behavior.

Полиморфизм контрольного района митохондриальной ДНК нативных и инвазивных популяций Harmonia axyridis (Coleoptera, Coccinellidae)

2019 ◽  
Vol 55 (7) ◽  
pp. 819-825
Author(s):  
Б. В. Андрианов ◽  
Д. А. Романов ◽  
Т. В. Горелова ◽  
И. И. Горячева
Keyword(s):  
Harmonia Axyridis

scholarly journals Comparative demography of the exotic Harmonia axyridis with other aphidophagous coccinellids reared on artificial diet

2014 ◽  
Vol 49 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Julianne Milléo ◽  
Francisco Sales Fernandes ◽  
Wesley Augusto Conde Godoy
Keyword(s):  
Life Table ◽  
Harmonia Axyridis ◽  
Reproductive Rate ◽  
The Other ◽  
Adult Longevity ◽  
Net Reproductive Rate ◽  
Anagasta Kuehniella ◽  
Survival Percentage ◽  
Comparative Demography ◽  
Biological Aspects

The objective of this work was to compare biological aspects and life table parameters of the coccinellids Harmonia axyridis, Cycloneda sanguineaand Hippodamia convergens. Insects were fed eggs of Anagasta kuehniella, and reared at 24.5±1ºC, 70±10% relative humidity, with a 12 hour photophase. Hippodamia convergenstook about 1.6 day to complete development, longer than H. axyridis, and 2.4 day longer than C. sanguinea.At immature stages, H. axyridisexhibited the highest survival percentage (49.2%), in comparison to the other coccinellids. For mean adult longevity, H. convergenswas deficient, in comparison with the other species. Mean period of pre oviposition was the longest in C. sanguinea; the longest oviposition time occurred for H. axyridis; and the post oviposition period was similar between the coccinellids. Considering the reproductive parameters, H. axyridisshowed the best performance in all aspects. For life table, the values of H. convergenswere higher than, although close, to those of H. axyridis. Nevertheless, the high net reproductive rate of H. axyridis showed this species potential to increase population size. The biological characteristics of the exotic H. axyridis favors its invasion and establishment in Brazil, corroborating results noticed in other countries.

scholarly journals Setosphlides A–D, New Isocoumarin Derivatives from the Entomogenous Fungus Setosphaeria rostrate LGWB-10

2021 ◽  
Author(s):  
Wenbin Gao ◽  
Xiaoxia Wang ◽  
Fengli Chen ◽  
Chunqing Li ◽  
Fei Cao ◽  
...  
Keyword(s):  
Harmonia Axyridis ◽  
Chemical Shifts ◽  
Human Tumor ◽  
Tumor Cell Lines ◽  
Human Tumor Cell ◽  
Human Tumor Cell Lines ◽  
Entomogenous Fungus ◽  
Planar Structures ◽  
Mcf 7 ◽  
C Nmr

Abstract Investigation of the entomogenous fungus Setosphaeria rostrate LGWB-10 from Harmonia axyridis led to the isolation of four new isocoumarin derivatives, setosphlides A–D (1–4), and four known analogues (5–8). Their planar structures and the relative configurations were elucidated by comprehensive spectroscopic methods. The absolute configurations of isocoumarin nucleus for 1–4 were elucidated by their ECD spectra. The C-10 relative configurations for the pair of C-10 epimers (1 and 2) were established by comparing the magnitude of the computed 13C NMR chemical shifts (Δδcalcd.) with the experimental 13C NMR values (Δδexp.) for the epimers. All of the isolated compounds (1–8) were evaluated for their cytotoxicities against four human tumor cell lines MCF-7, MGC-803, HeLa, and Huh-7. Graphic Abstract

scholarly journals Functional response of Harmonia axyridis preying on Acyrthosiphon pisum nymphs: the effect of temperature

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yasir Islam ◽  
Farhan Mahmood Shah ◽  
Xu Rubing ◽  
Muhammad Razaq ◽  
Miao Yabo ◽  
...  
Keyword(s):  
Functional Response ◽  
High Performance ◽  
Acyrthosiphon Pisum ◽  
Harmonia Axyridis ◽  
Effect Of Temperature ◽  
Functional Responses ◽  
Aphid Control ◽  
Host Aphid ◽  
Predator Foraging

AbstractIn the current study, we investigated the functional response of Harmonia axyridis adults and larvae foraging on Acyrthosiphon pisum nymphs at temperatures between 15 and 35 °C. Logistic regression and Roger’s random predator models were employed to determine the type and parameters of the functional response. Harmonia axyridis larvae and adults exhibited Type II functional responses to A. pisum, and warming increased both the predation activity and host aphid control mortality. Female and 4th instar H. axyridis consumed the most aphids. For fourth instar larvae and female H. axyridis adults, the successful attack rates were 0.23 ± 0.014 h−1 and 0.25 ± 0.015 h−1; the handling times were 0.13 ± 0.005 h and 0.16 ± 0.004 h; and the estimated maximum predation rates were 181.28 ± 14.54 and 153.85 ± 4.06, respectively. These findings accentuate the high performance of 4th instar and female H. axyridis and the role of temperature in their efficiency. Further, we discussed such temperature-driven shifts in predation and prey mortality concerning prey-predator foraging interactions towards biological control.

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