d="par0005">Zebrafish prefer to visit E–W arms of a plus maze in the unmodified GMF.
dd><dt class="label">•dt><dd>d="par0010">This bimodal preference remains stable over repeated trials divided by several days.
dd><dt class="label">•dt><dd>d="par0015">This preference changes for N–S arms upon the 90° turn of GMF horizontal component.
dd><dt class="label">•dt><dd>d="par0020">The change of preferred directions is accompanied by an increased locomotor activity.
dd><dt class="label">•dt><dd>d="par0025">Reversals of other GMF components do not change the preference of E–W directions.
dd>dl>