Visual alone Auditory alone Visual Auditory

Figure 4 Multisensory response enhancement. Observations are taken from studies of a visual-auditory neuron. Receptive fields (shading) and the locations of the visual and auditory stimuli (icons) within these receptive fields are shown in the schematics at the top (see Fig. 3 for conventions). The visual stimulus (V) was a moving bar of light, and the auditory stimulus (A) was a noise burst. Below the receptive fields are shown the neuronal responses to the visual stimulus alone (left), the auditory stimulus alone (center), and the visual-auditory combination (right). The ramps above the oscillograms (V) represent the movement of the visual stimulus across its receptive field, and the square wave (A) represents the onset, plateau, and offset of the auditory stimulus. The oscillographic traces at the bottom show the neuronal impulses that were evoked by these stimuli on a single trial. The summary bar graph on the right shows the averaged response for each of the conditions as well as the predicted sum based on the addition of the two modality-specific responses. Note that the magnitude of the multisensory response enhancement was greater than predicted by the sum of the modality-specific responses. ** Statistical significance (p<0.01) (reprinted from Wallace et al, J. Neurophysiol. 80, 1006-1010, copyright 1998, with permission from The American Physiological Society).

Figure 4 Multisensory response enhancement. Observations are taken from studies of a visual-auditory neuron. Receptive fields (shading) and the locations of the visual and auditory stimuli (icons) within these receptive fields are shown in the schematics at the top (see Fig. 3 for conventions). The visual stimulus (V) was a moving bar of light, and the auditory stimulus (A) was a noise burst. Below the receptive fields are shown the neuronal responses to the visual stimulus alone (left), the auditory stimulus alone (center), and the visual-auditory combination (right). The ramps above the oscillograms (V) represent the movement of the visual stimulus across its receptive field, and the square wave (A) represents the onset, plateau, and offset of the auditory stimulus. The oscillographic traces at the bottom show the neuronal impulses that were evoked by these stimuli on a single trial. The summary bar graph on the right shows the averaged response for each of the conditions as well as the predicted sum based on the addition of the two modality-specific responses. Note that the magnitude of the multisensory response enhancement was greater than predicted by the sum of the modality-specific responses. ** Statistical significance (p<0.01) (reprinted from Wallace et al, J. Neurophysiol. 80, 1006-1010, copyright 1998, with permission from The American Physiological Society).

the same principles that govern multisensory responses at the level of the single SC neuron are operative at the level of overt orientation behavior.

Breaking Bulimia

Breaking Bulimia

We have all been there: turning to the refrigerator if feeling lonely or bored or indulging in seconds or thirds if strained. But if you suffer from bulimia, the from time to time urge to overeat is more like an obsession.

Get My Free Ebook


Post a comment