bio psychology unit 3 images

BioPsychology Unit 3 Images

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FIGURE 9.3 Two methods by which cells migrate in the develping neural tube: somal translocation and glia-mediated migration.


FIGURE 9.8 The effect of neuron death and synapse rearrangement on the selectivity of synaptic transmission. The synaptic contacts of each axon become focused on a smaller number of cells


FIGURE 9.10 The effect of a few days of early monocular deprivation on the structure of axons projecting from the lateral geniculate nucleus into layer IV of the primary visual cortex. Axons carrying information from the deprived eye displayed substantially less branching. (Adapted from Antonini & Stryker, 1993.)


FIGURE 9.11 Adult neurogenesis. (Courtesy of Carl Ernst and Brian Christie, Department of Psychology, University of British Columbia.)


FIGURE 10.3 An MRI of Professor P.’s acoustic neuroma. The arrow indicates the tumor.


FIGURE 10.6 A CT scan of a subdural hematoma. Notice that the subdural hematoma has displaced the left lateral ventricle.

Copyright © 2011 Pearson Education, Inc. All rights

reserved.

FIGURE 10.15 Neuronal and transneuronal degeneration following axotomy.


FIGURE 10.16 Three patterns of axonal regeneration in mammalian peripheral nerves.


FIGURE 10.21 Increased neurogenesis in the dentate gyrus following damage (These images are courtesy of Carl Ernst and Brian Christie, Department of Psychology, University of British Columbia.)


FIGURE 11.19 Long-term potentiation in the granule cell layer of the rat hippocampal dentate gyrus. (Traces courtesy of Michael Corcoran, Department of Psychology, University of Saskatchewan.)

Diagram of the LTP Procedure

High frequency electrical stimulation

of the perforant pathway

Record from cells within the dentate gyrus:

Subsequent perforant pathway stimulation results in

progressive increases in population PSP’s

Amnesia


FIGURE 16.1 The cerebral hemispheres and cerebral commissures.


FIGURE 16.3 Restricting visual information to one hemisphere in cats. To restrict visual information to one hemisphere, Myers and Sperry (1) cut the corpus callosum, (2) cut the optic chiasm, and (3) blindfolded one eye. This restricted the visual information to the hemisphere ipsilateral to the uncovered eye.


FIGURE 16.4 Schematic illustration of Myers and Sperry’s (1953) groundbreaking split-brain experiment. There were four groups: (1) the key experimental group with both the optic chiasm and corpus callosum transected, (2) a control group with only the optic chiasm transected, (3) a control group with only the corpus callosum transected, and (4) an unlesioned control group. The performance of the three control groups did not differ, so they are illustrated together here.


FIGURE 16.5 The testing procedure that was used to evaluate the neuropsychological status of split-brain patients. Visual input goes from each visual field to the contralateral hemisphere; fine tactile input goes from each hand to the contralateral hemisphere; and each hemisphere controls the fine motor movements of the contralateral hand.

The Chimeric Figures Test

Figure 16.6:

The left hemisphere of a split-brain patient sees a single normal face that is a completed version of the half face on the right. At the same time, the right hemisphere sees a single normal face that is a completed version of the half face on the left.


FIGURE 16.7 The Z lens, which was developed by Zaidel to study functional asymmetry in split-brain patients. It is a contact lens that is opaque on one side (left or right), so that visual input reaches only one hemisphere.


Table 16.1

FIGURE 16.9 The anatomical asymmetry detected in the planum temporale of musicians by magnetic resonance imaging. In most people, the planum temporale is larger in the left hemisphere than in the right; this difference was found to be greater in musicians with perfect pitch than in either musicians without perfect pitch or controls. (Based on Schlaug et al., 1995.)

bio psychology unit 3 images

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