scholarly journals Evidence of strategic periodicities in collective conflict dynamics

2011 ◽  
Vol 8 (62) ◽  
pp. 1260-1273 ◽  
Author(s):  
Simon DeDeo ◽  
David Krakauer ◽  
Jessica Flack
Keyword(s):  
Decision Making ◽  
High Frequency ◽  
Functional Role ◽  
Interaction Patterns ◽  
Strategic Responses ◽  
Present Evidence ◽  
Behavioural Patterns ◽  
Primate Society ◽  
Social Decision Making

We analyse the timescales of conflict decision-making in a primate society. We present evidence for multiple, periodic timescales associated with social decision-making and behavioural patterns. We demonstrate the existence of periodicities that are not directly coupled to environmental cycles or known ultraridian mechanisms. Among specific biological and socially defined demographic classes, periodicities span timescales between hours and days. Our results indicate that these periodicities are not driven by exogenous or internal regularities but are instead driven by strategic responses to social interaction patterns. Analyses also reveal that a class of individuals, playing a critical functional role, policing, have a signature timescale of the order of 1 h. We propose a classification of behavioural timescales analogous to those of the nervous system, with high frequency, or α -scale, behaviour occurring on hour-long scales, through to multi-hour, or β -scale, behaviour, and, finally γ periodicities observed on a timescale of days.

Awareness and Decision Making in Professional Ethics

2000 ◽  
Vol 5 (1) ◽  
pp. 19-27 ◽  
Author(s):  
Ronny Swain
Keyword(s):  
Decision Making ◽  
Professional Ethics ◽  
Ethical Decision Making ◽  
Code Of Ethics ◽  
Professional Autonomy ◽  
Ethical Awareness ◽  
Ethical Decisions ◽  
The Right ◽  
Aid Decision

The paper describes the development of the 1998 revision of the Psychological Society of Ireland's Code of Professional Ethics. The Code incorporates the European Meta-Code of Ethics and an ethical decision-making procedure borrowed from the Canadian Psychological Association. An example using the procedure is presented. To aid decision making, a classification of different kinds of stakeholder (i.e., interested party) affected by ethical decisions is offered. The author contends (1) that psychologists should assert the right, which is an important aspect of professional autonomy, to make discretionary judgments, (2) that to be justified in doing so they need to educate themselves in sound and deliberative judgment, and (3) that the process is facilitated by a code such as the Irish one, which emphasizes ethical awareness and decision making. The need for awareness and judgment is underlined by the variability in the ethical codes of different organizations and different European states: in such a context, codes should be used as broad yardsticks, rather than precise templates.

Dynamics of the processes in metal machining

1998 ◽  
Vol 2 ◽  
pp. 115-122
Author(s):  
Donatas Švitra ◽  
Jolanta Janutėnienė
Keyword(s):  
High Frequency ◽  
Machine Tools ◽  
Metal Cutting ◽  
Cutting Tool ◽  
Low Frequency ◽  
Metal Cutting Machine ◽  
Cutting Machine ◽  
Metal Machining

In the practice of processing of metals by cutting it is necessary to overcome the vibration of the cutting tool, the processed detail and units of the machine tool. These vibrations in many cases are an obstacle to increase the productivity and quality of treatment of details on metal-cutting machine tools. Vibration at cutting of metals is a very diverse phenomenon due to both it’s nature and the form of oscillatory motion. The most general classification of vibrations at cutting is a division them into forced vibration and autovibrations. The most difficult to remove and poorly investigated are the autovibrations, i.e. vibrations arising at the absence of external periodic forces. The autovibrations, stipulated by the process of cutting on metalcutting machine are of two types: the low-frequency autovibrations and high-frequency autovibrations. When the low-frequency autovibration there appear, the cutting process ought to be terminated and the cause of the vibrations eliminated. Otherwise, there is a danger of a break of both machine and tool. In the case of high-frequency vibration the machine operates apparently quiently, but the processed surface feature small-sized roughness. The frequency of autovibrations can reach 5000 Hz and more.

Less Power or Powerless? Egocentric Empathy Gaps and the Irony of Having Little vs. No Power in Social Decision Making

2008 ◽  
Author(s):  
Michel Handgraaf ◽  
Eric van Dijk ◽  
Riël C. Vermunt ◽  
Henk Wilke ◽  
Carsten K. W. De Dreu
Keyword(s):  
Decision Making ◽  
Social Decision ◽  
Social Decision Making

scholarly journals Social Value Orientation Modulates Fairness Processing During Social Decision-Making: Evidence From Behavior and Brain Potentials

2021 ◽  
Author(s):  
Xinmu Hu ◽  
Xiaoqin Mai
Keyword(s):  
Decision Making ◽  
Ultimatum Game ◽  
Value Orientation ◽  
Emotional Reactions ◽  
Event Related Potential ◽  
Social Value ◽  
Social Value Orientation ◽  
Social Decision ◽  
Frontal Negativity ◽  
Social Decision Making

Abstract Social value orientation (SVO) characterizes stable individual differences by an inherent sense of fairness in outcome allocations. Using the event-related potential (ERP), this study investigated differences in fairness decision-making behavior and neural bases between individuals with prosocial and proself orientations using the Ultimatum Game (UG). Behavioral results indicated that prosocials were more prone to rejecting unfair offers with stronger negative emotional reactions compared with proselfs. ERP results revealed that prosocials showed a larger P2 when receiving fair offers than unfair ones in a very early processing stage, whereas such effect was absent in proselfs. In later processing stages, although both groups were sensitive to fairness as reflected by an enhanced medial frontal negativity (MFN) for unfair offers and a larger P3 for fair offers, prosocials exhibited a stronger fairness effect on these ERP components relative to proselfs. Furthermore, the fairness effect on the MFN mediated the SVO effect on rejecting unfair offers. Findings regarding emotional experiences, behavioral patterns, and ERPs provide compelling evidence that SVO modulates fairness processing in social decision-making, whereas differences in neural responses to unfair vs. fair offers as evidenced by the MFN appear to play important roles in the SVO effect on behavioral responses to unfairness.

Alpha and broadband high‐frequency activity track task dynamics and predict performance in controlled decision‐making

2021 ◽  
Author(s):  
Saskia Haegens ◽  
Yagna J. Pathak ◽  
Elliot H. Smith ◽  
Charles B. Mikell ◽  
Garrett P. Banks ◽  
...  
Keyword(s):  
Decision Making ◽  
High Frequency ◽  
High Frequency Activity
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