Table 1.

List of all events with corresponding event scores, sorted by location classification

LocationEvent scoreLocationEvent scoreLocationEvent score
Brain stemLimbic system (continued)Cortex (continued)
Cranial motor nuclei–peak0.038Presubiculum–peak0.261Neurogenesis cortical layer II/III–peak (VC)0.395
Oculomotor nucleus cell generation–onset0.041Dentate gyrus–peak0.264Cortical axons reach dorsal lateral geniculate nucleus0.396
Trigeminal mesencephalon nucleus–onset0.041Anterior commissure appears0.267Primary auditory cortex neurogenesis–offset0.420
Trigeminal mesencephalon nucleus–offset0.041Ventromedial hypothalamus neurogenesis offset0.269Corticospinal tract decussates at the pyramids0.428
Mesencephalic trigeminal cell generation–offset0.042Mitral cells–offset0.274Corticospinal tract reaches cervical spinal cord0.439
Trigeminal motor nucleus–peak0.051Suprachiasmatic nucleus neurogenesis offset0.283Initial differentiation of layer V (S1)0.444
Medial longitudinal fasciculus appears0.062CA1, CA2–peak0.285Cortical axons innervate dorsal lateral geniculate nucleus0.465
Postproliferative zone in the medulla appears0.073Nucleus accumbens—peak0.294Neurogenesis cortical layer II/III–end (VC)0.490
Trigeminal motor nucleus–offset0.078Tufted cells–peak0.327Range of rapid synaptogenesis (VC)–start0.501
Superior colliculus generation–onset0.079Hippocampal commissure appears0.337Onset of barrels (S1)0.504
Superficial superior colliculus laminae–start0.095Septal nuclei–offset0.339Corticospinal tract reaches dorsal horn of cervical spinal cord0.514
Postproliferative zone appears in the tegmentum0.112Olfactory tubercle generation–offset0.362Onset of decrease in fractional anisotropy0.515
Posterior commissure appears0.112Entorhinal cortex neurogenesis offset0.375Onset of sublayers in layer V (S1)0.517
Lateral cuneate nucleus–onset0.119Hippocampal CA3 neurogenesis offset0.380Onset of trilaminar plate (S1)0.517
Lateral and medial superior olivary nucleus–onset0.119Hippocampal CA1 neurogenesis offset0.387Adult-like cortical innervation of dorsal lateral geniculate nucleus0.531
Cranial sensory nuclei–peak0.120Subicular cortex neurogenesis offset0.389Onset of barrel field septa (S1)0.555
Postproliferative zone appears in the pretectum0.125Granule cells in the dentate gyrus–peak0.583Visual cortical axons in SC0.570
Medial cuneate nucleus–peak0.135Olfactory tract myelination onset0.634Corticospinal projections reach lumbar levels0.583
Reticular nuclei—peak0.155Stria medullaris myelination onset0.653First cortical visually evoked potentials0.590
Postproliferative zone appears in the superior colliculus0.157Fornix myelination onset0.675Corticospinal tract reaches the sacral region0.623
Inferior colliculus generation–onset0.171Anterior commissure myelination onset0.677Middle cerebellar peduncle myelination onset0.652
Lateral cuneate nucleus–peak0.186Mammillothalamic tract myelination onset0.689External capsule myelination onset0.666
Substantia nigra–peak0.187Hippocampus myelination onset0.699Cingulum myelination onset0.687
Sensory nucleus of the trigeminal nerve–offset0.199Fasciculus retroflexus myelination onset0.700Internal capsule myelination onset0.692
Lateral and medial superior olivary nucleus–offset0.199Stria terminalis myelination onset0.703Corpus callosum body myelination onset0.722
Superior colliculus–peak0.202Splenium myelination onset0.732
Inferior colliculus–peak0.203ThalamusPlasticity/OD critical period–start0.770
Raphe nucleus neurogenesis–offset0.206Medial geniculate nucleus onset0.113Range of rapid synaptogenesis (VC)–end0.849
Medial cuneate nucleus–offset0.249Dorsal lateral geniculate nucleus–start0.127Visual cortex peak synaptic density (area 17)0.869
Pontine nuclei–peak0.255Postproliferative zone appears in thalamus0.144Prefrontal cortex peak synaptic density0.886
Lateral cuneate nucleus–offset0.262Medial geniculate nucleus–peak0.176Plasticity/OD critical period–end0.901
Superficial superior colliculus laminae–offset0.279Ventral lateral geniculate nucleus–peak0.177Corpus callosum body myelination end0.971
Superior colliculus generation–offset0.308Dorsal lateral geniculate nucleus–peak0.183Middle cerebellar peduncle myelination end1.000
Dopaminergic axons from midbrain reach subplate0.352Ventroposterior and ventrobasal nuclei - peak0.191
Inferior colliculus generation–offset0.381Ventrobasal neurogenesis - onset0.194Whole brain
Dopaminergic axons from midbrain reach cortical plate0.395Medial geniculate nucleus offset0.21120% maximum brain weight (day)0.586
Dopaminergic axons from midbrain in cerebral cortex0.499Dorsal lateral geniculate nucleus–end0.22830% maximum brain weight (day)0.635
Superficial superior colliculus–start of lamination0.504Anteroventral, anteromedial, anterodorsal nuclei–peak0.23840% maximum brain weight (day)0.682
Inferior cerebellar peduncle myelination onset0.543Lateral geniculate nucleus axons in subplate0.30550% maximum brain weight (day)0.729
Superior colliculus segregation0.548ventrobasal neurogenesis–offset0.34160% maximum brain weight (day)0.788
Ipsi/contra segregation in superior colliculus0.561Pulvinar projections in interior zone of prestriate isocortex0.37570% maximum brain weight (day)0.858
Medial lemniscus myelination onset0.564Pulvinar projections in subplate of prestriate isocortex0.47180% maximum brain weight (day)0.949
Posterior commissure myelination onset0.591Pulvinar projections in cortical plate of prestriate isocortex0.515
Onset of synapse elimination in neurons of the soleus0.629Lateral geniculate nucleus axons in cortical layer IV0.545Whole organism
Brachium inferior colliculus myelination onset0.664Ipsi/contra segregation in lateral geniculate nucleus0.561Surface righting onset0.573
Optic radiation myelination onset0.652Rooting reflex offset0.623
CerebellumAuditory radiation myelination onset0.668Auditory startle reaction0.648
Inferior olive generation–onset0.058Lateral geniculate nucleus myelination onset0.680Preyer reflex0.681
Inferior olivary nucleus–peak0.092Vibrissa placing adult like pattern0.695
Purkinje cell generation–onset0.110Air righting reflex0.730
Cerebellum (continued)StriatumWhole organism (continued)
Postproliferative zone appears in the cerebellum0.125Ganglionic eminence postproliferative zone appears0.088Semi-adult-like sleep cycle0.745
Inferior olive generation–offset0.137Caudatoputamen generation–onset0.131Visual placing is mature0.768
Purkinje cells–peak0.142Globus pallidus–peak0.140Postconception walking onset0.794
Deep cerebellar nuclei–peak0.151Claustrum–peak0.147
Anteroventral cochlear nucleus–peak0.179Caudatoputamen–peak0.186Sensory periphery
Purkinje cell generation offset0.200Claustrum offset0.308Trigeminal ganglion cell generation–onset0.000
Cochlear nuclei–peak0.220Caudatoputamen–offset0.519Trigeminal ganglion cell generation–offset0.195
Superior cerebellar peduncle myelination onset0.564Lateral lemniscus myelination onset0.572Ears open0.668
Lenticular fasciculus myelination onset0.602
Limbic systemStriatum myelination onset0.715Retina
Locus ceruleus–onset0.041Photoreceptor generation–onset0.054
Locus ceruleus–peak0.059CortexHorizontal cell generation–onset0.059
Magnocellular basal forebrain–peak0.071Subplate—peak0.071Retinal ganglion cell generation–start0.091
Mitral cells onset0.085Subplate–onset of neurogenesis0.072Retinal horizontal cells–peak0.153
Olfactory tubercle generation–onset0.093Neurogenesis cortical layer VI–start (VC)0.117Amacrine generation onset0.158
White matter appears in the hypothalamus0.097Cortical plate first observed/visible0.123axons in optic stalk0.163
Preoptic nucleus generation–onset0.102Primary auditory cortex neurogenesis–onset0.136Retinal ganglion cells–peak0.195
Septal nuclei–onset0.110Cortical subventricular zone–onset0.164Optic axons at chiasm of optic tract0.198
Locus ceruleus–offset0.113Primary somatosensory cortex–layer VI offset0.194Rapid axon generation in optic nerve–start0.217
Entorhinal cortex neurogenesis onset0.119Neurogenesis cortical layer V–start (VC)0.203Cones–peak0.264
Raphe complex–peak0.120Neurogenesis cortical layer VI–peak (VC)0.204Optic axons invade visual centers0.270
Medial forebrain bundle appears0.125Neocortical layer I emerges0.207Rod generation–onset0.282
Hippocampal CA3 neurogenesis onset0.139GABA cells in subplate–start0.213Muller cell generation–onset0.282
Subicular cortex neurogenesis onset0.139External capsule appears0.215Retinal amacrine cells–peak0.298
Granule cell layer fascia dentata neurogenesis onset0.140Primary somatosensory cortex–layer V offset0.220Bipolar cell generation–start0.300
Hippocampal CA1 neurogenesis onset0.143Internal capsule appears0.236Optic axons reach dorsal lateral geniculate nucleus and superior colliculus0.319
Granule cells in the dentate gyrus–onset0.150Lhx6 first in cortex in GABAergic cells0.238Retinal ganglion cell generation–end0.333
Postproliferative zone appears in the medial pallium0.151GABA cells in subplate–end0.249Horizontal cell generation–offset0.371
Mammillothalamic tract appears0.153Primary somatosensory cortex–layer 2/3 onset0.255Optic nerve axon number–peak0.392
Preoptic nucleus–peak0.157Neurogenesis cortical lamina VI–end (VC)0.258Onset of retinal waves stage II0.401
Fasciculus retroflexus appears0.162Neurogenesis cortical lamina IV–start (VC)0.267Onset of retinal waves stage I0.425
Stria medullaris thalami appears0.166Neurogenesis cortical layer V–peak (VC)0.268Rods–peak0.464
Supraoptic nucleus of hypothalamus offset0.169Primary somatosensory cortex–layer IV offset0.283Retinal bipolar cells—peak0.478
Suprachiasmatic nucleus–peak0.170GABA-ir cells in lower intermediate zone0.286End of retinal waves stage I0.520
Amygdala–peak0.177GABA positive cells appear in lower intermediate zone0.287Bipolar cells generation–offset0.541
Mitral cells–peak0.182Peak subventricular zone expansion in the developing isocortex0.289Amacrine cell generation–offset0.552
Endopiriform neurogenesis offset0.193Subplate and intermediate zone apoptosis onset0.302Rod generation—offset0.561
Anterior olfactory nucleus–peak0.194Neurogenesis cortical layer V–end (VC)0.305Onset of retinal waves stage III0.573
Nucleus of lateral olfactory tract–peak0.198Neurogenesis cortical layer IV–peak (VC)0.320Retinal waves0.575
Septal nuclei–peak0.215Cortical plate apoptosis onset0.321End of retinal waves stage II0.578
Entorhinal cortex–peak0.230Neurogenesis cortical layer II/III–start (VC)0.342Rapid axon loss in optic nerve ends0.583
Olfactory tubercle generation–peak0.238Corpus callosum appears0.359Muller cell generation–offset0.597
Fornix appears0.241Neurogenesis cortical layer IV–end (VC)0.362Optic tract myelination onset0.597
Stria terminalis appears0.243Layer IV genesis–start0.366Eye opening0.663
Subiculum–peak0.248Primary somatosensory cortex–layer 2/3 offset0.368First electroretinogram0.665
Parasubiculum–peak0.252Cortical axons reach thalamus0.371End of retinal waves stage III0.672
Optic tract myelination end0.847
  • Within location subcategories, events are listed from lowest to highest event score.