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The total points Essay

Dawkins posits that the closer organisms are related the more genes they will share and where the phenotypic propensity is to behave altruistically, these organisms will behave in this way towards each other to protect the interest of those genes. This apparent altruistic behaviour is therefore selfish at the level of the genes even if it appears to be altruistic at the level of the organism and so kin discrimination is an ultimately selfish mechanism to ensure copies of these shared genes are populated in greater numbers.

Another way of ensuring that the actor bestows these generosities on those who share their genes is the assumption that the recipients live near to the actor which is known as limited dispersal. This is the theory that a person is more likely to help another person from a neighbouring group due to an increased likelihood that they might share genes based upon the proximity and the likelihood that the degree of relatedness will therefore be above average for the population (Hamilton, 1964).

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More recent research demonstrates that the potential benefits from cooperation through higher probabilities of relatedness are cancelled out by the competition led to by this relatedness (Kummerli et al, 2008) and that cooperation is more likely to be favoured when those who share a higher degree of relatedness disperse in groups, this is known as budding dispersal (Kummerli et al, 2008).

This may mean that dispersal does have a benefit on the selection of cooperative traits at the genetic level but only if the organisms disperse in groups; SGT would likely suggest that genes therefore influence people to disperse in groups to reap these fitness benefits. Whilst this discrimination towards helping those who share the same genes makes sense, based on this logic is it incapable of explaining why cooperative and social behaviours occur between those who do not share genes.

Why would a person behave in a way that seemingly has no fitness benefits for themselves or those of possible genetic significance and furthermore what if this behaviour appears to bestow cost on the actor. An explanation for why people help others when they are not related to the recipient is ‘reciprocal altruism’ (Trivers 1971; Kreb & Davies, 1993; Griffin & West, 2002; Frank, 2003; West et al, 2006; Lehmann & Keller, 2006) this is where people help each other on the assumed proviso that when they need help another person will return this type of behaviour (Frank, 2003; West et al, 2006).

SGT would stress that through this interaction there is a direct long term fitness benefit for the actor. However, without concrete reciprocal altruism where by favours are paid directly in proportion to the original favour in exactly equal measures, there is no certainty that the favour will ever be returned and therefore this concept may be found wanting; this will be demonstrated later when the public goods game is explained outlining the ways in which this type of behaviour decreases over time.

Perhaps these social and cooperative behaviours are better understood when they are examined in their context; the impact of a behaviour on individual fitness relative to the group to which the individual belongs. There is evidence that some people have a strong predisposition to act in a way that rewards cooperative behaviour and punishes those who violate this norm and they do so in a way which incurs significant cost to themselves with seemingly no expectation of reciprocation by any other party at any date in the future, altruistically.

This behaviour is indiscriminate and thus attempts to explain cooperative and social behaviours directed outside of those related to the actor; this propensity is known as strong reciprocity and there is experimental evidence to support its existence. Drawing again on game theory, the ‘public goods’ game is an experimental means to measure cooperation between people who have never met in a situation where there are repeated interactions with outcomes that either benefit the group as a whole or the individual.

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Each individual starts the game with the same number of points; these points are swapped at the end of the game for real money. The players are told that there will be a set number of rounds, 10 for example and that in each round they can contribute a certain percentage of their points in to a common account and the rest in to their own personal account. At the end of each round the experimenters would tell the players the total amount in the common account and would pay a percentage of this in to the personal accounts of all the players.

Therefore, if people acted purely in their self-interest as relayed in the often misunderstood purest form of the selfish gene theory, this person would not contribute to the common account in the first place and would reap the rewards of everyone else’s contribution. Contributions to the common fund started at approximately 50% of the total points of each player but this decreased over the course of the game as some people put less in the common account. Justifications for the decline in cooperation were that the only way to punish people who were not contributing to the common account was to decline to contribute to that account also.

It begs the question as to how sustainable cooperative and social behaviours are without a significant deterrent to behaving selfishly. When this game was conducted with opportunity to heavily punish non contributors by using their own points to deduct from those of the non-contributing players this was consistently selected. This pattern of behaviour meant that cooperation no longer decreased over the rounds so cooperative behaviour was maintained by reward and punishment as it often is in society.

More recent neurobiological evidence supports the notion that even this seemingly altruistic behaviour by the actor is selfish at a genetic level, De Quervain et al (2004) found that when a person punishes another for non-cooperative behaviour the dorsal striatum is stimulated and as this is the circuitry involved in reward-related activity there is a direct fitness benefit being bestowed by this behaviour to the actor. Additionally, there are indirect benefits for the group to which the actor belongs as this behaviour increases their survival chances and productivity.

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The total points Essay
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Dawkins posits that the closer organisms are related the more genes they will share and where the phenotypic propensity is to behave altruistically, these organisms will behave in this way towards each other to protect the interest of those genes. This apparent altruistic behaviour is therefore selfish at the level of the genes even if it appears to be altruistic at the level of the organism and so kin discrimination is an ultimately selfish mechanism to ensure copies of these shared genes are p
2017-12-20 12:37:23
The total points Essay
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