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| paulsen   | R Documentation   |
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Neurotransmission in Guinea Pig Brains
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Description
~~~~~~~~~~~

The ``paulsen`` data frame has 346 rows and 1 columns.

Sections were prepared from the brain of adult guinea pigs. Spontaneous
currents that flowed into individual brain cells were then recorded and
the peak amplitude of each current measured. The aim of the experiment
was to see if the current flow was quantal in nature (i.e. that it is
not a single burst but instead is built up of many smaller bursts of
current). If the current was indeed quantal then it would be expected
that the distribution of the current amplitude would be multimodal with
modes at regular intervals. The modes would be expected to decrease in
magnitude for higher current amplitudes.

Usage
~~~~~

::

    paulsen

Format
~~~~~~

This data frame contains the following column:

``y``
    The current flowing into individual brain cells. The currents are
    measured in pico-amperes.

Source
~~~~~~

The data were kindly made available by Dr. O. Paulsen from the
Department of Pharmacology at the University of Oxford.

Paulsen, O. and Heggelund, P. (1994) The quantal size at
retinogeniculate synapses determined from spontaneous and evoked EPSCs
in guinea-pig thalamic slices. *Journal of Physiology*, **480**,
505â€“511.

References
~~~~~~~~~~

Davison, A.C. and Hinkley, D.V. (1997) *Bootstrap Methods and Their
Application*. Cambridge University Press.
