Forkhead box protein P2 (FOXP2) is a protein that, in humans, is encoded by the FOXP2 gene. FOXP2 is a member of the forkhead box family of transcription factors, proteins that regulate gene expression by binding to DNA. It is expressed in the brain, heart, lungs and digestive system.
Bird vocalization includes both bird calls and bird songs. In non-technical use, bird songs are the bird sounds that are melodious to the human ear. In ornithology and birding, songs are distinguished by function from calls.
The Australian zebra finch or chestnut-eared finch is the most common estrildid finch of Central Australia. It ranges over most of the continent, avoiding only the cool humid south and some areas of the tropical far north. The bird has been introduced to Puerto Rico and Portugal. Due to the ease of keeping and breeding the zebra finch in captivity, it has become Australia’s most widely studied bird; by 2010, it was the most studied captive model passerine species worldwide, by a considerable margin.
The auditory system is the sensory system for the sense of hearing. It includes both the sensory organs and the auditory parts of the sensory system.
The ventral tegmental area (VTA), also known as the ventral tegmental area of Tsai, or simply ventral tegmentum, is a group of neurons located close to the midline on the floor of the midbrain. The VTA is the origin of the dopaminergic cell bodies of the mesocorticolimbic dopamine system and other dopamine pathways; it is widely implicated in the drug and natural reward circuitry of the brain. The VTA plays an important role in a number of processes, including reward cognition and orgasm, among others, as well as several psychiatric disorders. Neurons in the VTA project to numerous areas of the brain, ranging from the prefrontal cortex to the caudal brainstem and several regions in between.
The auditory cortex is the part of the temporal lobe that processes auditory information in humans and many other vertebrates. It is a part of the auditory system, performing basic and higher functions in hearing, such as possible relations to language switching. It is located bilaterally, roughly at the upper sides of the temporal lobes – in humans, curving down and onto the medial surface, on the superior temporal plane, within the lateral sulcus and comprising parts of the transverse temporal gyri, and the superior temporal gyrus, including the planum polare and planum temporale.
In physiology, tonotopy is the spatial arrangement of where sounds of different frequency are processed in the brain. Tones close to each other in terms of frequency are represented in topologically neighbouring regions in the brain. Tonotopic maps are a particular case of topographic organization, similar to retinotopy in the visual system.
Known as the Society finch in North America and the Bengali finch or Bengalese finch elsewhere, Lonchura striata domestica is a domesticated finch not found in nature. It became a popular cage and trade bird after appearing in European zoos in the 1860s where it was imported from Japan. There have been many theories of the origin of domestication for the Bengalese finch, and we now know it took place primarily in Japan. Coloration and behavior were modified through centuries of selection in Asia, then later in Europe and North America.
Vocal learning is the ability to modify acoustic and syntactic sounds, acquire new sounds via imitation, and produce vocalizations. "Vocalizations" in this case refers only to sounds generated by the vocal organ as opposed to by the lips, teeth, and tongue, which require substantially less motor control. A rare trait, vocal learning is a critical substrate for spoken language and has only been detected in eight animal groups despite the wide array of vocalizing species; these include humans, bats, cetaceans, pinnipeds, elephants, and three distantly related bird groups including songbirds, parrots, and hummingbirds. Vocal learning is distinct from auditory learning, or the ability to form memories of sounds heard, a relatively common trait which is present in all vertebrates tested. For example, dogs can be trained to understand the word "sit" even though the human word is not in its innate auditory repertoire. However, the dog cannot imitate and produce the word "sit" itself as vocal learners can.
Masakazu "Mark" Konishi was a Japanese neurobiologist, known for his research on the neuroscience underlying the behavior of owls and songbirds.
Michale Sean Fee is an American neuroscientist who works on the neural mechanisms of sequence generation and learning. Michale Fee is faculty in the Department of Brain and Cognitive Sciences at the Massachusetts Institute of Technology, and an Investigator in the McGovern Institute for Brain Research. His laboratory studies how songbirds generate and learn complex vocal sequences.
Conspecific song preference is the ability songbirds require to distinguish conspecific song from heterospecific song in order for females to choose an appropriate mate, and for juvenile males to choose an appropriate song tutor during vocal learning. Researchers studying the swamp sparrow have demonstrated that young birds are born with this ability, because juvenile males raised in acoustic isolation and tutored with artificial recordings choose to learn only songs that contain their own species' syllables. Studies conducted at later life stages indicate that conspecific song preference is further refined and strengthened throughout development as a function of social experience. The selective response properties of neurons in the songbird auditory pathway has been proposed as the mechanism responsible for both the innate and acquired components of this preference.
Minoo Lenarz, born Minoo Moshrefi, was an Iranian-German Professor and medical scientist.
Darcy Brisbane Kelley, is an American neurobiologist and currently a Weintraub and HHMI Professor in the Department of Biological Sciences at Columbia University. She is also Co-Director of Columbia’s Graduate Program in Neurobiology and Behavior and Editor of Developmental Neurobiology, and well known for her contributions to neuroethology, particularly the neural control of vocalization in Xenopus and the cellular and molecular mechanisms of sexually differentiated acoustic communication.
Edwin Rubel is an American academic and Developmental Neurobiologist holding the position of emeritus professor at the University of Washington. He was the Founding Director and first Virginia Merrill Bloedel Chair in Basic Hearing Research from 1989 to 2017.
Reproduction and vocalization in midshipman fish are closely interlinked. Mating in midshipman fish depends on auditory communication, the production and reception of sound signals. Males produce several different vocalizations, while females only make grunts in non-breeding situations.
Jessica Cardin is an American neuroscientist who is an associate professor of neuroscience at Yale University School of Medicine. Cardin's lab studies local circuits within the primary visual cortex to understand how cellular and synaptic interactions flexibly adapt to different behavioral states and contexts to give rise to visual perceptions and drive motivated behaviors. Cardin's lab applies their knowledge of adaptive cortical circuit regulation to probe how circuit dysfunction manifests in disease models.
Stephanie Ann White is an American neuroscientist who is a professor at the University of California, Los Angeles. Her research looks to understand how social interactions impact the brain. She serves as Director of the Neural Systems and Behavior programme at the Marine Biological Laboratory.
Adult neurogenesis is the process in which new neurons are born and subsequently integrate into functional brain circuits after birth and into adulthood. Avian species including songbirds are among vertebrate species that demonstrate particularly robust adult neurogenesis throughout their telencephalon, in contrast with the more limited neurogenic potential that are observed in adult mammals after birth. Adult neurogenesis in songbirds is observed in brain circuits that underlie complex specialized behavior, including the song control system and the hippocampus. The degree of postnatal and adult neurogenesis in songbirds varies between species, shows sexual dimorphism, fluctuates seasonally, and depends on hormone levels, cell death rates, and social environment. The increased extent of adult neurogenesis in birds compared to other vertebrates, especially in circuits that underlie complex specialized behavior, makes birds an excellent animal model to study this process and its functionality. Methods used in research to track adult neurogenesis in birds include the use of thymidine analogues and identifying endogenous markers of neurogenesis. Historically, the discovery of adult neurogenesis in songbirds substantially contributed to establishing the presence of adult neurogenesis and to progressing a line of research tightly associated with many potential clinical applications.
David Forrest Clayton is an American neuroscientist, biochemist, and academic. He is professor and the chair of the Department of Genetics & Biochemistry at Clemson University.
