scholarly journals Effect of Feedback Valence on Family Resemblance Category Learning

2019 ◽  
Author(s):  
Jing-Shang Che ◽  
Qiang Xing ◽  
Ai-mei Li
Keyword(s):  
Negative Feedback ◽  
Category Learning ◽  
Positive Feedback ◽  
Test Scores ◽  
Family Resemblance ◽  
Feedback Condition ◽  
Physiological Level ◽  
Behavioral Level ◽  
The Brain ◽  
Feedback Valence

This research uses ERPs method to study how different valence of feedback influence family resemblance category learning. The results showed that at the behavioral level, participants in the negative feedback condition received higher test scores than those in the positive feedback condition; at the physiological level, the four kinds of ERPs evoked by both negative and positive feedback are P200, P300, and FRN. Compared with the non-feedback condition, P300 is more sensitive to negative feedback, and negative feedback induces larger amplitude, while P300 is not sensitive to positive feedback. For both negative and positive feedback, when feedback was presented after 200-300ms, the reaction to errors induced FRN production, and FRN produced under negative feedback condition led to more activation. This research has deepened our understanding of the influence of feedback valence on category learning from the brain mechanisms as well.

PERSONALITY AND SOCIAL-EVALUATIVE ANXIETIES ASSOCIATED WITH RATING DISCOMFORT IN ANTICIPATED POSITIVE AND NEGATIVE FEEDBACK CONDITIONS

2002 ◽  
Vol 30 (4) ◽  
pp. 359-371 ◽  
Author(s):  
Thomas P. Sawyer ◽  
Lisa A. Hollis-Sawyer ◽  
Amanda Pokryfke
Keyword(s):  
Undergraduate Students ◽  
Negative Feedback ◽  
Performance Feedback ◽  
Positive Feedback ◽  
Test Performance ◽  
Inverse Relationship ◽  
Feedback Condition ◽  
Regression Analyses ◽  
Personality Dimensions ◽  
Positive And Negative Feedback

The purpose of this study was to assess the relationships between select personality dimensions, social-evaluative anxieties, and rating discomfort. Undergraduate students were told they would be giving test performance feedback to a confederate and were instructed on how to give this feedback, to some degree, based on condition. Correlation and regression analyses revealed some interesting patterns. Neuroticism was found to be significantly related to feelings of discomfort only under the positive feedback condition, while extraversion was found to be significantly related to feelings of discomfort only under the negative feedback condition. A significant inverse relationship was also found between both agreeableness and conscientiousness levels, and in reaction to giving positive feedback. Additional findings and implications are discussed.

scholarly journals Functional heterogeneity of perceived control in feedback processing

2020 ◽  
Vol 15 (3) ◽  
pp. 329-336
Author(s):  
Ya Zheng ◽  
Mengyao Wang ◽  
Shiyu Zhou ◽  
Jing Xu
Keyword(s):  
Negative Feedback ◽  
Positive Feedback ◽  
Perceived Control ◽  
Choice Task ◽  
Functional Heterogeneity ◽  
Psychological Function ◽  
Feedback Processing ◽  
Reward Positivity ◽  
Motivational Salience ◽  
Feedback Valence

Abstract Perceived control is a fundamental psychological function that can either boost positive affect or buffer negative affect. The current study addressed the electrophysiological correlates underlying perceived control, as exercised by choice, in the processing of feedback valence. Thirty-six participants performed an EEG choice task during which they received positive or negative feedback following choices made either by themselves or by a computer. Perceived control resulted in an enhanced reward positivity for positive feedback but increased theta power for negative feedback. Further, perceived control led to greater feedback P3 amplitude and delta power, regardless of feedback valence. These results suggest functional heterogeneity of perceived control in feedback processing as diverse as magnifying the reward signal, enhancing the need for control and increasing the motivational salience of outcome irrespective of valence.

scholarly journals Genetic dissection of the different roles of hypothalamic kisspeptin neurons in regulating female reproduction

2018 ◽  
Author(s):  
Luhong Wang ◽  
Charlotte Vanacker ◽  
Laura L. Burger ◽  
Tammy Barnes ◽  
Yatrik M. Shah ◽  
...  
Keyword(s):  
Negative Feedback ◽  
Knockout Mice ◽  
Positive Feedback ◽  
Gonadotropin Releasing Hormone ◽  
Genetic Dissection ◽  
Female Reproduction ◽  
Releasing Hormone ◽  
Gnrh Neurons ◽  
Reproductive Cycles ◽  
The Brain

AbstractThe brain regulates fertility through gonadotropin-releasing hormone (GnRH) neurons. Estradiol induces negative feedback on pulsatile GnRH/luteinizing hormone (LH) release and positive feedback generating preovulatory GnRH/LH surges. Negative and positive feedback are postulated to be mediated by kisspeptin neurons in arcuate and anteroventral periventricular (AVPV) nuclei, respectively. Kisspeptin-specific ERα knockout mice exhibit disrupted LH pulses and surges. This knockout approach is neither location-specific nor temporally-controlled. We utilized CRISPR-Cas9 to disrupt ERα in adulthood. Mice with ERα disruption in AVPV kisspeptin neurons have typical reproductive cycles but blunted LH surges, associated with decreased excitability of these neurons. Mice with ERα knocked down in arcuate kisspeptin neurons showed disrupted cyclicity, associated with increased glutamatergic transmission to these neurons. These observations suggest activational effects of estradiol regulate surge generation and maintain cyclicity through AVPV and arcuate kisspeptin neurons, respectively, independent from its role in the development of hypothalamic kisspeptin neurons or puberty onset.Significant StatementThe brain regulates fertility through gonadotropin-releasing hormone (GnRH) neurons. Ovarian estradiol regulates GnRH pulses (negative feedback) and the GnRH surge release that ultimately triggers ovulation (positive feedback). Kisspeptin neurons in the arcuate and anteroventral periventricular nuclei are postulated to convey negative and positive feedback to GnRH neurons, respectively. Kisspeptin-specific ERα knockout mice exhibited disrupted negative and positive feedback. However, it is not clear what roles each kisspeptin population plays, and not possible to separate their roles during development vs adulthood in this model. Here we utilized CRISPR-Cas9 to disrupt ERα in each population in adulthood. We found activational effects of estradiol regulate surge generation and maintain cyclicity through AVPV and arcuate kisspeptin neurons, respectively, independent from estradiol action during development.

scholarly journals The role of social comparison and type of feedback on self-criticism in people with high levels of depressive symptoms

2021 ◽  
Vol 23 (2) ◽  
pp. 40-45
Author(s):  
Andreea Amănălăchioaie ◽  
Loredana Diaconu-Gherasim
Keyword(s):  
Young Adults ◽  
Depressive Symptoms ◽  
Social Comparison ◽  
Negative Feedback ◽  
Positive Feedback ◽  
Psychology Students ◽  
Feedback Condition ◽  
First Year ◽  
Practical Implications

This research explores the relation between social comparison and self-criticism on a group of participants with elevated rates of depressive symptoms. In addition, the study investigated whether the type of feedback could moderate the relation between social comparison and self-criticism. The sample included 36 psychology students in the first year (N = 28 women, M age = 24.6, SD = 4.66) with high depressive symptoms. Results show that higher rates of negative social comparison are correlated with higher levels of self-criticism. Participants that received negative feedback reported an increase level of self-criticism compared to those from positive feedback condition. The type of feedback moderated the relation between social comparison and self-criticism. Our findings are discussed from the perspective of their practical implications for young adults experiencing high levels of depressive symptoms.

The Value of Being Wrong: Intermittent Feedback Delivery Alters the Striatal Response to Negative Feedback

2016 ◽  
Vol 28 (2) ◽  
pp. 261-274 ◽  
Author(s):  
Karolina M. Lempert ◽  
Elizabeth Tricomi
Keyword(s):  
Negative Feedback ◽  
Performance Feedback ◽  
Positive Feedback ◽  
Goal Attainment ◽  
Poor Performance ◽  
Learning Task ◽  
Feedback Condition ◽  
Associate Learning ◽  
Feedback Delivery ◽  
Informational Value

Whereas positive feedback is both rewarding and informative, negative feedback can be construed as either punishing (because it is indicative of poor performance) or informative (because it may lead to goal attainment). In this neuroimaging experiment, we highlighted the informational value of negative feedback by intermixing trials with and without feedback. When performance feedback is expected, positive feedback triggers an increase in striatal activity, whereas negative feedback elicits a decrease in striatal activity. We predicted that, in contrast, when feedback receipt is unpredictable, the striatal response to negative feedback would increase. Participants performed a paired-associate learning task during fMRI scanning. In one condition (“blocked feedback”), the receipt of feedback was predictable—participants knew whether or not they would receive feedback for their responses. In another condition (“mixed feedback”), the receipt of feedback was unpredictable—on a random 50% of trials, participants received feedback, and they otherwise received no feedback. Negative feedback in the mixed feedback condition elicited more striatal activity than negative feedback in the blocked feedback condition. In contrast, feedback omission evoked more striatal activity when feedback delivery was expected, compared to when it was unpredictable. This pattern emerged from an increase in caudate activity in response to negative feedback in the mixed feedback condition and a decrease in ventral striatal activity in response to no feedback in this condition. These results suggest that, by emphasizing the informational value of negative feedback, an unpredictable feedback context alters the striatal response to negative feedback and to the omission of feedback.

scholarly journals Suppression of personality variation in boldness during foraging in three-spined sticklebacks

2021 ◽  
Vol 75 (4) ◽  
Author(s):  
Hannah E. A. MacGregor ◽  
Aislinn Cottage ◽  
Christos C. Ioannou
Keyword(s):  
Negative Feedback ◽  
Risk Taking ◽  
Positive Feedback ◽  
Gasterosteus Aculeatus ◽  
Control Treatment ◽  
Refuge Use ◽  
Individual Level ◽  
Behavioural Type ◽  
State Behaviour

Abstract Consistent inter-individual variation in behaviour within a population, widely referred to as personality variation, can be affected by environmental context. Feedbacks between an individual’s behaviour and state can strengthen (positive feedback) or weaken (negative feedback) individual differences when experiences such as predator encounters or winning contests are dependent on behavioural type. We examined the influence of foraging on individual-level consistency in refuge use (a measure of risk-taking, i.e. boldness) in three-spined sticklebacks, Gasterosteus aculeatus, and particularly whether changes in refuge use depended on boldness measured under control conditions. In the control treatment trials with no food, individuals were repeatable in refuge use across repeated trials, and this behavioural consistency did not differ between the start and end of these trials. In contrast, when food was available, individuals showed a higher degree of consistency in refuge use at the start of the trials versus controls but this consistency significantly reduced by the end of the trials. The effect of the opportunity to forage was dependent on behavioural type, with bolder fish varying more in their refuge use between the start and the end of the feeding trials than shyer fish, and boldness positively predicted the likelihood of feeding at the start but not at the end of the trials. This suggests a state-behaviour feedback, but there was no overall trend in how bolder individuals changed their behaviour. Our study shows that personality variation can be suppressed in foraging contexts and a potential but unpredictable role of feedbacks between state and behaviour. Significance statement In this experimental study, we examined how foraging influences consistency in risk-taking in individual three-spined sticklebacks. We show that bolder individuals become less consistent in their risk-taking behaviour than shyer individuals during foraging. Some bolder individuals reinforce their risk-taking behaviour, suggesting a positive feedback between state and behaviour, while others converge on the behaviour of shyer individuals, suggesting a negative feedback. In support of a role of satiation in driving negative feedback effects, we found that bolder individuals were more likely to feed at the start but not at the end of the trials. Overall, our findings suggest that foraging can influence personality variation in risk-taking behaviour; however, the role of feedbacks may be unpredictable.

scholarly journals Bayesian analysis of time-varying interactions between stock returns and foreign equity flows

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Boubekeur Baba ◽  
Güven Sevil
Keyword(s):  
Stock Returns ◽  
Negative Feedback ◽  
Positive Feedback ◽  
Positive Response ◽  
Time Varying ◽  
Economic Uncertainty ◽  
Foreign Investors ◽  
New Findings ◽  
Net Flows ◽  
Feedback Trading

AbstractThis study discusses the trading behavior of foreign investors with respect to economic uncertainty in the South Korean stock market from a time-varying perspective. We employ a news-based measure of economic uncertainty along with the model of time-varying parameter vector autoregression with stochastic volatility. The empirical analysis reveals several new findings about foreign investors’ trading behaviors. First, we find evidence that positive feedback trading often appears during periods of high economic uncertainty, whereas negative feedback trading is exclusively observable during periods of low economic uncertainty. Second, the foreign investors’ feedback trading appears mostly to be well-timed and often leads the time-varying economic uncertainty except in periods of global crises. Third, lagged negative (positive) response of net flows to economic uncertainty is found to be coupled with lagged positive (negative) feedback trading. Fourth, the study documents an asymmetric response of foreign investors with regard to negative and positive shocks of economic uncertainty. Specifically, we find that they instantly turn to positive feedback trading after a negative contemporaneous response of net flows to shocks of economic uncertainty. In contrast, they move slowly toward negative feedback trading after a positive response of net flows to uncertainty shocks.

scholarly journals A13-2 Identification of negative feedback, positive feedback and feed foward sequences during tilt test in young women with syncope

EP Europace ◽  
2003 ◽  
Vol 4 (Supplement_2) ◽  
pp. B19-B19
Author(s):  
G.A. Ruiz ◽  
J.C. Perfetto ◽  
S. Gallino ◽  
R. Chirife ◽  
A. Guillardot ◽  
...  
Keyword(s):  
Young Women ◽  
Negative Feedback ◽  
Positive Feedback ◽  
Tilt Test

EFFECT OF HYPOTHALAMIC DEAFFERENTATION ON THE CONTROL OF LUTEINIZING HORMONE SECRETION

1970 ◽  
Vol 46 (1) ◽  
pp. 1-7 ◽  
Author(s):  
S. TALEISNIK ◽  
M. E. VELASCO ◽  
J. J. ASTRADA
Keyword(s):  
Luteinizing Hormone ◽  
Negative Feedback ◽  
Positive Feedback ◽  
Hormone Secretion ◽  
Feedback Effect ◽  
Luteinizing Hormone Secretion ◽  
Ovarian Steroids ◽  
Medial Hypothalamus ◽  
Lh Release ◽  
Positive Feedback Effect

SUMMARY The influence that the interruption of the neural afferents to the hypothalamus exerts on ovulation and on the release of luteinizing hormone (LH) was studied in the rat. Animals with retrochiasmatic sections interrupting the neural connexions between the medial hypothalamus and the preoptic area (POA) showed constant oestrus and failed to ovulate. Animals in which the dorsal neural afferents to the POA were transected had oestrous cycles and ovulated normally. The positive feedback effect of progesterone on LH release in spayed animals primed either with 20 μg. oestradiol benzoate or 2·5 mg. testosterone propionate 3 days before was studied. Transection of the dorsal afferents to the POA favoured an increase in plasma LH, but in animals with retrochiasmatic sections the response was abolished. However, the negative feedback effect of ovarian steroids operated after both types of transection because an increase in plasma LH occurred after ovariectomy. It is concluded that the negative feedback effect of ovarian steroids acts on the medial hypothalamus which can maintain a tonic release of gonadotrophins in the absence of steroids. In contrast, the POA involved in the positive feedback effect of progesterone is concerned with the phasic release of LH.

The human brain: Chairman’s introduction

1981 ◽  
Vol 292 (1057) ◽  
pp. 151-153
Keyword(s):  
Human Brain ◽  
Cultural Evolution ◽  
Positive Feedback ◽  
Time Scale ◽  
Biological Evolution ◽  
Internal Models ◽  
Adaptive Behaviour ◽  
Myelin Sheaths ◽  
The Brain

Much has been said at the symposium about the pre-eminent role of the brain in the continuing emergence of man. Tobias has spoken of its explosive enlargement during the last 1 Ma, and how much of its enlargement in individual ontogeny is postnatal. We are born before our brains are fully grown and ‘wired up ’. During our long adolescence we build up internal models of the outside world and of the relations of parts of our bodies to it and to one another. Neurons that are present at birth spread their dendrites and project axons which acquire their myelin sheaths, and establish innumerable contacts with other neurons, over the years. New connections are formed; genetically endowed ones are stamped in or blanked off. People born without arms may grow up to use their toes in skills that are normally manual. Tobias, Darlington and others have stressed the enormous survival value of adaptive behaviour and the ‘positive feedback’ relation between biological and cultural evolution. The latter, the unique product of the unprecedentedly rapid biological evolution of big brains, advances on a time scale unknown to biological evolution.

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