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zoopharmacognosy

n. the ability of nonhuman animals to select plants and plant parts (leaves, pith, etc.) for medicinal purposes to reduce fevers or eliminate parasites. In Tanzania, the plants used by chimpanzees to reduce fever or parasite load are the same as those used by human beings to treat the same ailments.

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Psychology term of the day

September 1st 2024

transfer function model

transfer function model

1. a model used in functional magnetic resonance imaging to describe the shape of responses. A neuron receives a number of inputs, each of which comes via a connection that has a strength or weight; these weights correspond to the synaptic efficacy of the neuron. Each neuron also has a single threshold value. Activation of the neuron is determined by the weighted sum of the inputs minus the threshold. The activation signal is passed through a transfer function to produce the output of the neuron.

2. in time-series analysis, a type of model used to forecast a time series that is influenced by present and past values of other time series.