Mary Ann Raghanti
Biographic Data
| ID | 88717 |
|---|---|
| NAME | Mary Ann Raghanti |
| GIVEN NAMES | Mary Ann |
| FAMILY NAME | Raghanti |
| SIGNATURE | RAGHANTI M A |
| AFFILIATIONS | Kent State University |
| ORCID | 0000-0002-6842-1907 |
| VERIFIED | Yes |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 31 |
| WORKS AS AUTHOR | 10 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2012 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 3 |
What can lithics tell us about hominin technology's ‘primordial soup’? An origin of stone knapping via the emulation of Mother Nature
The use of stone hammers to produce sharp stone flakes—knapping—is thought to represent a significant stage in hominin technological evolution because it facilitated the exploitation of novel resources, including meat obtained from medium‐to‐large‐sized vertebrates. The invention of knapping may have occurred via an additive (i.e., cumulative) process that combined several innovative stages. Here, we propose that one of these stages was the homin…
Age‐ and cognition‐related differences in the gray matter volume of the chimpanzee brain ( Pan troglodytes )
Several primate species have been shown to exhibit age‐related changes in cognition, brain, and behavior. However, severe neurodegenerative illnesses, such as Alzheimer's disease (AD), were once thought to be uniquely human. Recently, some chimpanzees naturally were documented to develop both neurofibrillary tangles and amyloid plaques, the main characteristics of AD pathology. In addition, like humans and other primates, chimpanzees show similar…
Comparative neuropathology in aging primates
While humans exhibit a significant degree of neuropathological changes associated with deficits in cognitive and memory functions during aging, non‐human primates (NHP) present with more variable expressions of pathological alterations among individuals and species. As such, NHP with long life expectancy in captivity offer an opportunity to study brain senescence in the absence of the typical cellular pathology caused by age‐related neurodegenera…
Age‐related changes in chimpanzee ( Pan troglodytes ) cognition
Chimpanzees are the species most closely related to humans, yet age‐related changes in brain and cognition remain poorly understood. The lack of studies on age‐related changes in cognition in chimpanzees is particularly unfortunate in light of the recent evidence demonstrating that this species naturally develops Alzheimer's disease (AD) neuropathology. Here, we tested 213 young, middle‐aged, and elderly captive chimpanzees on the primate cogniti…
Rock Music
We explore and describe the auditory landscape that emerges from stone tool making. Using two trained musicians, we identify the pitches and octaves produced from percussion knapping. We also analyze whether knapping sounds vary by raw material, knapper skill level, or by flake size. Our results show that our chosen stone material types each displayed a single fundamental pitch (E or G) with one or two additional octaves present, and each individ…
Experimental replication shows knives manufactured from frozen human feces do not work
The ethnographic account of an Inuit man manufacturing a knife from his own frozen feces to butcher and disarticulate a dog has permeated both the academic literature and popular culture. To evaluate the validity of this claim, we tested the basis of that account via experimental archaeology. Our experiments assessed the functionality of knives made from human feces in controlled conditions that provided optimal conditions for success. However, t…
Locomotor pattern fails to predict foramen magnum angle in rodents, strepsirrhine primates, and marsupials
Neuropeptide Y ‐immunoreactive Neurons in the Cerebral Cortex of Humans and Other Haplorrhine Primates
We examined the distribution of neurons immunoreactive for neuropeptide Y ( NPY ) in the posterior part of the superior temporal cortex ( B rodmann's area 22 or area T pt) of humans and nonhuman haplorrhine primates. NPY has been implicated in learning and memory and the density of NPY ‐expressing cortical neurons and axons is reduced in depression, bipolar disorder, schizophrenia, and A lzheimer's disease. Due to the role that NPY plays in both …
A volumetric comparison of the insular cortex and its subregions in primates
Human Evolution and the Chimpanzee Referential Doctrine
Chimpanzees are our closest living genomic relatives, but they lack the bipedal locomotion, markedly enlarged brains, and advanced communication skills of humans. This has led many to view them as "primitive" and to presume that their behavior and anatomy are also primitive. If true, they could serve as models of our last common ancestor (LCA), i.e., a territorially aggressive knuckle walker, reliant on vertical climbing and below-branch suspensi…
Human Evolution and the Chimpanzee Referential Doctrine
Chimpanzees are our closest living genomic relatives, but they lack the bipedal locomotion, markedly enlarged brains, and advanced communication skills of humans. This has led many to view them as "primitive" and to presume that their behavior and anatomy are also primitive. If true, they could serve as models of our last common ancestor (LCA), i.e., a territorially aggressive knuckle walker, reliant on vertical climbing and below-branch suspensi…
Locomotor pattern fails to predict foramen magnum angle in rodents, strepsirrhine primates, and marsupials
A volumetric comparison of the insular cortex and its subregions in primates
Rock Music
We explore and describe the auditory landscape that emerges from stone tool making. Using two trained musicians, we identify the pitches and octaves produced from percussion knapping. We also analyze whether knapping sounds vary by raw material, knapper skill level, or by flake size. Our results show that our chosen stone material types each displayed a single fundamental pitch (E or G) with one or two additional octaves present, and each individ…
Experimental replication shows knives manufactured from frozen human feces do not work
The ethnographic account of an Inuit man manufacturing a knife from his own frozen feces to butcher and disarticulate a dog has permeated both the academic literature and popular culture. To evaluate the validity of this claim, we tested the basis of that account via experimental archaeology. Our experiments assessed the functionality of knives made from human feces in controlled conditions that provided optimal conditions for success. However, t…
Human Evolution and the Chimpanzee Referential Doctrine
Chimpanzees are our closest living genomic relatives, but they lack the bipedal locomotion, markedly enlarged brains, and advanced communication skills of humans. This has led many to view them as "primitive" and to presume that their behavior and anatomy are also primitive. If true, they could serve as models of our last common ancestor (LCA), i.e., a territorially aggressive knuckle walker, reliant on vertical climbing and below-branch suspensi…
Neuropeptide Y ‐immunoreactive Neurons in the Cerebral Cortex of Humans and Other Haplorrhine Primates
We examined the distribution of neurons immunoreactive for neuropeptide Y ( NPY ) in the posterior part of the superior temporal cortex ( B rodmann's area 22 or area T pt) of humans and nonhuman haplorrhine primates. NPY has been implicated in learning and memory and the density of NPY ‐expressing cortical neurons and axons is reduced in depression, bipolar disorder, schizophrenia, and A lzheimer's disease. Due to the role that NPY plays in both …
A volumetric comparison of the insular cortex and its subregions in primates
Locomotor pattern fails to predict foramen magnum angle in rodents, strepsirrhine primates, and marsupials
Experimental replication shows knives manufactured from frozen human feces do not work
The ethnographic account of an Inuit man manufacturing a knife from his own frozen feces to butcher and disarticulate a dog has permeated both the academic literature and popular culture. To evaluate the validity of this claim, we tested the basis of that account via experimental archaeology. Our experiments assessed the functionality of knives made from human feces in controlled conditions that provided optimal conditions for success. However, t…
Age‐ and cognition‐related differences in the gray matter volume of the chimpanzee brain ( Pan troglodytes )
Several primate species have been shown to exhibit age‐related changes in cognition, brain, and behavior. However, severe neurodegenerative illnesses, such as Alzheimer's disease (AD), were once thought to be uniquely human. Recently, some chimpanzees naturally were documented to develop both neurofibrillary tangles and amyloid plaques, the main characteristics of AD pathology. In addition, like humans and other primates, chimpanzees show similar…
Comparative neuropathology in aging primates
While humans exhibit a significant degree of neuropathological changes associated with deficits in cognitive and memory functions during aging, non‐human primates (NHP) present with more variable expressions of pathological alterations among individuals and species. As such, NHP with long life expectancy in captivity offer an opportunity to study brain senescence in the absence of the typical cellular pathology caused by age‐related neurodegenera…
Age‐related changes in chimpanzee ( Pan troglodytes ) cognition
Chimpanzees are the species most closely related to humans, yet age‐related changes in brain and cognition remain poorly understood. The lack of studies on age‐related changes in cognition in chimpanzees is particularly unfortunate in light of the recent evidence demonstrating that this species naturally develops Alzheimer's disease (AD) neuropathology. Here, we tested 213 young, middle‐aged, and elderly captive chimpanzees on the primate cogniti…
Rock Music
We explore and describe the auditory landscape that emerges from stone tool making. Using two trained musicians, we identify the pitches and octaves produced from percussion knapping. We also analyze whether knapping sounds vary by raw material, knapper skill level, or by flake size. Our results show that our chosen stone material types each displayed a single fundamental pitch (E or G) with one or two additional octaves present, and each individ…
What can lithics tell us about hominin technology's ‘primordial soup’? An origin of stone knapping via the emulation of Mother Nature
The use of stone hammers to produce sharp stone flakes—knapping—is thought to represent a significant stage in hominin technological evolution because it facilitated the exploitation of novel resources, including meat obtained from medium‐to‐large‐sized vertebrates. The invention of knapping may have occurred via an additive (i.e., cumulative) process that combined several innovative stages. Here, we propose that one of these stages was the homin…
Biology (9 works) · Primate Behavior and Ecology (6 works) · Medicine (5 works) · Neuroscience (5 works) · Psychology (5 works) · Paleontology (4 works) · Paleontology (4 works) · Primate (4 works) · Anatomy (3 works) · Brain size (3 works)