Anatomy Commons^™

Neuroanatomy Of The Common Dolphin (Delphinus Delphis) As Revealed By Magnetic Resonance Imaging (Mri), L. Marino, Keith Sudheimer, D. Ann Pabst, William A. Mclellan, David Filsoof, John I. Johnson

Veterinary Science and Medicine Collection

In this study, magnetic resonance (MR) images of the brain of an adult common dolphin (Delphinus delphis) were acquired in the coronal plane at 66 antero-posterior levels. From these scans a computer-generated set of resectioned virtual images in orthogonal planes was constructed using the programs VoxelView and VoxelMath (Vital Images, Inc., Michigan State Univ.). Sections in all three planes reveal major neuroanatomical structures. These structures in the adult common dolphin brain are compared with those from a fetal common dolphin brain from a previously published study as well as with MR images of adult brains of other odontocetes. …

Revisiting The Picture-Superiority Effect In Symbolic Comparisons: Do Pictures Provide Privileged Access?, Paul Amrhein, Mark Mcdaniel, Paula Waddill

Department of Psychology Faculty Scholarship and Creative Works

In 4 experiments, symbolic comparisons were investigated to test semantic-memory retrieval accounts espousing processing advantages for the picture over word stimuli. In Experiment 1, participants judged pairs of animal names or pictures by responding to questions probing concrete or abstract attributes (texture or size, ferocity or intelligence). Per pair, attributes were salient or nonsalient concerning their prerated relevance to animals being compared. Distance (near or far) between attribute magnitudes was also varied. Pictures did not significantly speed responding relative to words across all other variables. Advantages were found for far attribute magnitudes (i.e., the distance effect) and salient attributes. The …

Context Effects In Visual Length Perception: Role Of Ocular, Retinal, And Spatial Location, Yoav Arieh, Lawrence E. Marks

Department of Psychology Faculty Scholarship and Creative Works

In three experiments, we examined the transfer of orientation-contingent context effects between the eyes and across portions of the retina with or without variation in external spatial location. Previous research had shown that vertical lines are judged long, relative to horizontal lines, when the stimulus set comprises relatively long horizontals and short verticals (Contextual Condition B), as compared with the reverse when the stimulus set comprises relatively short horizontals and long verticals (Contextual Condition A). Consequently, the contextual set of stimuli influences the magnitude of the horizontal-vertical illusion (HVI), decreasing its size under Contextual Condition A and increasing its size …

"Vampiri" A Trani. Metti Un Masso Sul Morto Iapigio, Giacomo Annibaldis

Dr Anastasia Tsaliki, PhD

No abstract provided.

Anatomical And Electrophysiological Analysis Of The Trigeminal Nerve In A Teleost Fish, Oncorhynchus Mykiss, Lynne U. Sneddon

Veterinary Science and Medicine Collection

The trigeminal nerve in the rainbow trout, Oncorhynchus mykiss, was examined for the presence of A-delta and C fibres. Sections of the three branches of the trigeminal nerve were found to comprise a range of fibre types including Adelta and C fibres. The size range of the cell bodies of the trigeminal ganglion reflected the fibre range since they correlated with the size range of axons in the nerve branches. Electrophysiological recordings of evoked activity from the ganglion confirmed the presence of these fibre types and the proportion of these mirrored the proportion of fibre types in the anatomical analyses. …

A Qualitative Analysis For Sex Determination In Humans Utilizing Posterior And Medial Aspects Of The Distal Humerus, Veronica L. Wanek

Dissertations and Theses

Visual and metric analysis both provide accepted methods for sex determination in humans. Visual ascertainment uses differing morphological traits in males and females to establish sex. Researchers have continually sought accurate methods of sexing long bones when skulls or pelves are absent or fragmented. These long bone elements may not have sexually distinct characteristics, but tend to survive in the field quite well.

Metric analysis depends on size dimorphism between males and females to correctly assign sex. Metric methods fail where the sexes overlap or when skeletal elements cannot be assigned to their correct biological population. Under these conditions, visual …