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List of works by Charlotte Helfrich-Förster

A Distinct Visual Pathway Mediates High-Intensity Light Adaptation of the Circadian Clock in Drosophila

scientific article published on 03 January 2019

A Functional Clock Within the Main Morning and Evening Neurons of D. melanogaster Is Not Sufficient for Wild-Type Locomotor Activity Under Changing Day Length

scientific article published on 26 March 2020

A Neural Network Underlying Circadian Entrainment and Photoperiodic Adjustment of Sleep and Activity in Drosophila.

scientific article published on August 2016

A New ImageJ Plug-in “ActogramJ” for Chronobiological Analyses ⬇️

scientific article published on October 1, 2011

A New Rhodopsin Influences Light-dependent Daily Activity Patterns of Fruit Flies

scientific article published in August 2017

A Novel Thermal-Visual Place Learning Paradigm for Honeybees (Apis mellifera)

scientific article published on 15 April 2020

A Tug-of-War between Cryptochrome and the Visual System Allows the Adaptation of Evening Activity to Long Photoperiods in Drosophila melanogaster

scientific article published in November 2017

A damping circadian clock drives weak oscillations in metabolism and locomotor activity of aphids (Acyrthosiphon pisum).

scientific article published on 2 November 2017

A new device for monitoring individual activity rhythms of honey bees reveals critical effects of the social environment on behavior

scientific article published on 05 July 2016

A self-sustaining, light-entrainable circadian oscillator in the Drosophila brain

scientific article

Adaptation of Circadian Neuronal Network to Photoperiod in High-Latitude European Drosophilids

scientific article

Allatostatin A Signalling in Drosophila Regulates Feeding and Sleep and Is Modulated by PDF

scientific article (publication date: 30 September 2016)

Author Correction: The characterization of the circadian clock in the olive fly Bactrocera oleae (Diptera: Tephritidae) reveals a Drosophila-like organization.

scientific article

Blocking endocytosis in Drosophila's circadian pacemaker neurons interferes with the endogenous clock in a PDF-dependent way.

scientific article published in October 2009

Chronobiology by moonlight

scientific article

Circadian activity rhythm of the house fly continues after optic tract severance and lobectomy

scientific article published in January 1985

Circadian light-input pathways in Drosophila

scientific article

Circadian rhythm of the locomotor activity in Drosophila melanogaster and its mutants ‘sine oculis’ and ‘small optic lobes’

Clock network in Drosophila

scientific article published on 26 November 2014

Closely Related Fruit Fly Species Living at Different Latitudes Diverge in Their Circadian Clock Anatomy and Rhythmic Behavior

scientific article published on 11 September 2018

Correction: Allatostatin A Signalling in Drosophila Regulates Feeding and Sleep and Is Modulated by PDF.

scientific article published on 6 December 2016

Correction: Identification and Structural Characterization of Interneurons of the Drosophila Brain by Monoclonal Antibodies of the Würzburg Hybridoma Library

scientific article published in October 2013

Cryptochrome Interacts With Actin and Enhances Eye-Mediated Light Sensitivity of the Circadian Clock in Drosophila melanogaster

scientific article published on 18 July 2018

Cryptochrome is present in the compound eyes and a subset of Drosophila's clock neurons

scientific article published in June 2008

Cryptochrome mediates light-dependent magnetosensitivity of Drosophila's circadian clock

scientific article

Cryptochrome, Compound Eyes, Hofbauer-Buchner Eyelets, and Ocelli Play Different Roles in the Entrainment and Masking Pathway of the Locomotor Activity Rhythm in the Fruit Fly Drosophila Melanogaster ⬇️

scientific article published on October 1, 2003

Cryptochrome-dependent and -independent circadian entrainment circuits in Drosophila.

scientific article published in April 2015

Cryptochrome-positive and -negative clock neurons in Drosophila entrain differentially to light and temperature

scientific article published in December 2010

Development and morphology of the clock-gene-expressing lateral neurons of Drosophila melanogaster

scientific article published in January 2007

Development of pigment-dispersing hormone-immunoreactive neurons in the nervous system of Drosophila melanogaster

scientific article

Differential control of morning and evening components in the activity rhythm of Drosophila melanogaster--sex-specific differences suggest a different quality of activity

scientific article published in April 2000

Differential regulation of circadian pacemaker output by separate clock genes in Drosophila

scholarly article

Does the morning and evening oscillator model fit better for flies or mice?

scientific article published on August 2009

Dopamine signaling in wake promoting clock neurons is not required for the normal regulation of sleep in Drosophila

scientific article published on 09 November 2020

Drosophila CRY is a deep brain circadian photoreceptor

scientific article

Drosophila RSK Influences the Pace of the Circadian Clock by Negative Regulation of Protein Kinase Shaggy Activity.

scientific article

Drosophila Rhodopsin 7 can partially replace the structural role of Rhodopsin 1, but not its physiological function

scientific article published on 12 May 2017

Drosophila clock neurons under natural conditions.

scientific article published in February 2013

Drosophila ezoana uses an hour-glass or highly damped circadian clock for measuring night length and inducing diapause

scientific article published on 08 September 2016

Drosophila timeless2 is required for chromosome stability and circadian photoreception

scientific article published on 11 February 2010

Ectopic expression of the neuropeptide pigment-dispersing factor alters behavioral rhythms in Drosophila melanogaster.

scientific article

Effects of small concentrations of volatile anesthetics on action potential firing of neocortical neurons in vitro

scientific article published in June 1998

Evidences for circadian rhythmicity in the per0 mutant of Drosophila melanogaster

scientific article published in November 1987

Flies as models for circadian clock adaptation to environmental challenges

scientific article published on 22 October 2018

Flies in the north: locomotor behavior and clock neuron organization of Drosophila montana

scientific article

Flies remember the time of day.

scientific article published on 28 May 2015

Flies' colour preferences depend on the time of day

scientific article published on 01 October 2019

Fly cryptochrome and the visual system

scientific article published on 27 March 2013

From neurogenetic studies in the fly brain to a concept in circadian biology

scientific article published on 07 May 2014

Functional analysis of circadian pacemaker neurons in Drosophila melanogaster.

scientific article

GABA(B) receptors play an essential role in maintaining sleep during the second half of the night in Drosophila melanogaster

scientific article published in October 2013

GSK-3 Beta Does Not Stabilize Cryptochrome in the Circadian Clock of Drosophila

scientific article (publication date: 2016)

Genetic variation of clock genes and cancer risk: a field synopsis and meta-analysis

scientific article

Genomic response to selection for diurnality and nocturnality inDrosophila

Glutamate and its metabotropic receptor in Drosophila clock neuron circuits.

scientific article published in November 2007

Hofbauer-Buchner eyelet affects circadian photosensitivity and coordinates TIM and PER expression in Drosophila clock neurons

scientific article

Human cryptochrome-1 confers light independent biological activity in transgenic Drosophila correlated with flavin radical stability.

scientific article

Identification and structural characterization of interneurons of the Drosophila brain by monoclonal antibodies of the würzburg hybridoma library

scientific article

Immunohistochemistry in Drosophila: sections and whole mounts

scientific article

Implications of the Sap47 null mutation for synapsin phosphorylation, longevity, climbing proficiency and behavioural plasticity in adult Drosophila

scientific article published on 08 October 2019

Insect circadian clock outputs

scientific article published on June 2011

Interactions between psychosocial stress and the circadian endogenous clock

scientific article

Laboratory versus nature: the two sides of the Drosophila circadian clock.

scientific article published in December 2012

Life at High Latitudes Does Not Require Circadian Behavioral Rhythmicity under Constant Darkness

scientific article published on 31 October 2019

Light input pathways to the circadian clock of insects with an emphasis on the fruit fly Drosophila melanogaster

scientific article published on 05 November 2019

Light-Mediated Circuit Switching in the Drosophila Neuronal Clock Network

scientific article published on 26 September 2019

Loss of function in the Drosophila clock gene period results in altered intermediary lipid metabolism and increased susceptibility to starvation

scientific article published on 20 January 2020

Medicine in the Fourth Dimension

scientific article published on 01 August 2019

Model and Non-model Insects in Chronobiology

scientific article published on 26 November 2020

Moonlight detection by Drosophila's endogenous clock depends on multiple photopigments in the compound eyes

scientific article published on April 2014

Moonlight shifts the endogenous clock of Drosophila melanogaster

scholarly article

Mushroom body influence on locomotor activity and circadian rhythms in Drosophila melanogaster

scientific article published in April 2002

Mutations in PNPLA6 are linked to photoreceptor degeneration and various forms of childhood blindness.

scientific article

Neuroanatomical details of the lateral neurons of Drosophila melanogaster support their functional role in the circadian system

scientific article published on 9 February 2018

Neurobiology of the fruit fly's circadian clock.

scientific article

Neuronal circadian clock protein oscillations are similar in behaviourally rhythmic forager honeybees and in arrhythmic nurses.

scientific article

Neuropeptide F immunoreactive clock neurons modify evening locomotor activity and free-running period in Drosophila melanogaster

scientific article published in April 2012

Normal vision can compensate for the loss of the circadian clock.

scientific article published in September 2015

Organization of Circadian Behavior Relies on Glycinergic Transmission

scientific article published on April 2017

Organization of the circadian system in insects

scientific article

PDF has found its receptor

scientific article published in October 2005

Pea Aphids (Hemiptera: Aphididae) Have Diurnal Rhythms When Raised Independently of a Host Plant

scientific article published on January 2016

Peptidergic clock neurons in Drosophila: ion transport peptide and short neuropeptide F in subsets of dorsal and ventral lateral neurons.

scientific article published in September 2009

Peptidergic signaling from clock neurons regulates reproductive dormancy in Drosophila melanogaster

scientific article published on 13 June 2019

Period gene expression in four neurons is sufficient for rhythmic activity of Drosophila melanogaster under dim light conditions.

scientific article

Phase-shifting the fruit fly clock without cryptochrome

scientific article published in April 2012

Photic entrainment in Drosophila assessed by locomotor activity recordings

scientific article

Pigment-Dispersing Factor-expressing neurons convey circadian information in the honey bee brain

scientific article published in January 2018

Pigment-dispersing factor (PDF) has different effects on Drosophila's circadian clocks in the accessory medulla and in the dorsal brain

scientific article published in October 2008

Pigment-dispersing factor is involved in age-dependent rhythm changes in Drosophila melanogaster.

scientific article published in December 2012

Pigment-dispersing hormone-immunoreactive neurons in the nervous system of wild-type Drosophila melanogaster and of several mutants with altered circadian rhythmicity

scientific article published in November 1993

Polarization Vision: Targets of Polarization-Sensitive Photoreceptors in the Drosophila Visual System

scientific article published on 01 September 2019

RNA in situ hybridizations on Drosophila whole mounts

scientific article

Reevaluation of Drosophila melanogaster's neuronal circadian pacemakers reveals new neuronal classes

scientific article published on September 2006

Repeated psychosocial stress at night affects the circadian activity rhythm of male mice

scientific article published on 20 April 2015

Repeated psychosocial stress at night, but not day, affects the central molecular clock

scientific article published on 22 July 2014

Rhodopsin 7-The unusual Rhodopsin in Drosophila

scientific article published on 6 September 2016

Robust circadian rhythmicity of Drosophila melanogaster requires the presence of lateral neurons: a brain-behavioral study of disconnected mutants ⬇️

scientific article published on 01 April 1998

Role of Rhodopsins as Circadian Photoreceptors in the Drosophila melanogaster

scientific article published on 10 January 2019

Role of the optic lobes in the regulation of the locomotor activity rhythm of Drosophila melanogaster: behavioral analysis of neural mutants

scientific article published in November 1986

Setting the clock--by nature: circadian rhythm in the fruitfly Drosophila melanogaster

scientific article

Single-cell resolution long-term luciferase imaging in cultivated Drosophila brains

scientific article published on 22 July 2020

Sleep in Insects

scientific article

Spatial and temporal expression of the period and timeless genes in the developing nervous system of Drosophila: newly identified pacemaker candidates and novel features of clock gene product cycling

scientific article published in September 1997

Synergic entrainment of Drosophila's circadian clock by light and temperature.

scientific article published in December 2009

Targeted ablation of CCAP neuropeptide-containing neurons of Drosophila causes specific defects in execution and circadian timing of ecdysis behavior

scientific article published in June 2003

Techniques that revealed the network of the circadian clock of Drosophila

scientific article

Thalassomyxa australisrhythmicity III. Entrainment by combination of different Zeitgeber

The 69 bp circadian regulatory sequence (CRS) mediates per-like developmental, spatial, and circadian expression and behavioral rescue in Drosophila.

scientific article published in February 1999

The CCHamide1 Neuropeptide Expressed in the Anterior Dorsal Neuron 1 Conveys a Circadian Signal to the Ventral Lateral Neurons in

The Circadian Clock of the Ant Camponotus floridanus Is Localized in Dorsal and Lateral Neurons of the Brain

scientific article published in March 2018

The Drosophila Clock System

The Drosophila microbiome has a limited influence on sleep, activity, and courtship behaviors

scientific article published in Scientific Reports

The Gain and Loss of Cryptochrome/Photolyase Family Members during Evolution

scientific article published in 2022

The MAP kinase p38 is part of Drosophila melanogaster's circadian clock

scientific article published on 21 August 2014

The Neuropeptide PDF Is Crucial for Delaying the Phase of <i>Drosophila’s</i> Evening Neurons Under Long Zeitgeber Periods

scientific article published in 2021

The Timed Depolarization of Morning and Evening Oscillators Phase Shifts the Circadian Clock of Drosophila

scientific article published on 5 June 2016

The ability to entrain to long photoperiods differs between 3 Drosophila melanogaster wild-type strains and is modified by twilight simulation.

scientific article published in February 2012

The characterization of the circadian clock in the olive fly Bactrocera oleae (Diptera: Tephritidae) reveals a Drosophila-like organization

scientific article published on 16 January 2018

The circadian clock in the brain: a structural and functional comparison between mammals and insects

scientific article published on 20 May 2004

The circadian clock network in the brain of different Drosophila species

scientific article published in February 2013

The circadian clock of fruit flies is blind after elimination of all known photoreceptors

scientific article published in April 2001

The circadian clock uses different environmental time cues to synchronize emergence and locomotion of the solitary bee Osmia bicornis

scientific article published on 28 November 2019

The circadian system of Drosophila melanogaster and its light input pathways

scientific article

The dual-oscillator system of Drosophila melanogaster under natural-like temperature cycles.

scientific article published on 11 April 2012

The extraretinal eyelet of Drosophila: development, ultrastructure, and putative circadian function.

scientific article published in November 2002

The fruit fly Drosophila melanogaster favors dim light and times its activity peaks to early dawn and late dusk.

scientific article published in October 2007

The genetic basis of diurnal preference in Drosophila melanogaster

scientific article published on 31 August 2020

The ion transport peptide is a new functional clock neuropeptide in the fruit fly Drosophila melanogaster

scientific article published in July 2014

The lateral and dorsal neurons of Drosophila melanogaster: new insights about their morphology and function

scientific article published on January 2007

The neuroarchitecture of the circadian clock in the brain of Drosophila melanogaster

scientific article published in October 2003

The neuropeptide pigment-dispersing factor adjusts period and phase of Drosophila's clock

scientific article published in February 2009

The nocturnal activity of fruit flies exposed to artificial moonlight is partly caused by direct light effects on the activity level that bypass the endogenous clock

scientific article published on February 2009

The novel Drosophila tim(blind) mutation affects behavioral rhythms but not periodic eclosion

scientific article

The period clock gene is expressed in central nervous system neurons which also produce a neuropeptide that reveals the projections of circadian pacemaker cells within the brain of Drosophila melanogaster

scientific article

The role of the circadian clock system in physiology

scientific article published on 4 January 2018

Time matters: pathological effects of repeated psychosocial stress during the active, but not inactive, phase of male mice

scientific article published on 20 September 2012

Time-of-day-dependent adaptation of the HPA axis to predictable social defeat stress

scientific article published on 22 September 2016

Twilight dominates over moonlight in adjusting Drosophila's activity pattern

scientific article published on April 2015

Two clocks in the brain: an update of the morning and evening oscillator model in Drosophila

scientific article published on January 2012

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