Table 1 Computational Model of investment behaviour in the multi-round trust task: Parameters, ranges and conceptual description of the parameters
From: Self-reported childhood family adversity is linked to an attenuated gain of trust during adolescence
Parameter symbol | Parameter name | Possible parameter values | Meaning |
|---|---|---|---|
\({{{{{\boldsymbol{\alpha }}}}}}\) | Inequality aversion | \(\left\{{0,\, 0.4,\, 1}\right\}\) | Degree of sensitivity to an unfair outcome against the other player. |
\({{{{{\boldsymbol{\omega}}}}}},\, {{{{{\boldsymbol{b}}}}}}^{{{{{\boldsymbol{T}}}}}} \, ({{{{\boldsymbol{\omega}}}}})\) | Risk Aversion | \(\left\{{0.4,\, 0.6,\, 0.8,\, 1,\, 1.2,\, 1.4,\, 1.6,\, 1.8 }\right\}\) | Multiplier for value of money kept over money returned by the partner. |
\({{{{{\boldsymbol{k}}}}}}\) | Theory of Mind sophistication | \(\left\{{0,\, 1,\, 2,\, 3,\, 4}\right\}\) | Number of recursive reasoning steps in representing beliefs of the other player. |
\({{{{{\boldsymbol{P}}}}}}\) | Planning | \(\left\{{1,\, 2,\, 3,\, 4}\right\}\) | Number of steps ahead planned into the interaction. |
\({{{{{\boldsymbol{\zeta }}}}}}\) | Irritability | \(\left\{0,\, 0.25,\, 0.5,\, 0.75,\, 1\right\}\) | Measure of shift towards punishment behaviour, when experiencing below expectation partner actions. |
\({{{{{\bf{q}}}}}}{{{{{\boldsymbol{(}}}}}}{{{{{\boldsymbol{\zeta }}}}}}{{{{{\boldsymbol{)}}}}}}\) | Irritation Awareness | \(\left\{0,\, 1,\, 2,\, 3,\, 4\right\}\) | Awareness of partner irritability. 0 = unaware, 4 = partner for sure irritable. |
\({{{{{\boldsymbol{\beta }}}}}}\) | Inverse Temperature | \(\left\{\frac{1}{4},\, \frac{1}{3},\, \frac{1}{2},\, \frac{1}{1}\right\}\) | Measure of stochasticity in choices given their expected utilities. |
